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#7385 From: "AnaLog Services, Inc." <wireline@...>
Date: Thu Nov 19, 2009 4:30 am
Subject: Re: Neutron sources 		sydlevine
Offline Offline
Send Email Send Email
 
I may be able to get a 3 Ci AmBe for you, depending on what you consider a fair price for one.
 
Syd H. Levine
AnaLog Services, Inc.
Phone:  (270) 276-5671
Telefax:  (270) 276-5588
E-mail:  analog@...
Web URL:  www.logwell.com
----- Original Message -----
From: dub sutton
Sent: Wednesday, November 18, 2009 2:53 PM
Subject: [wireline] Neutron sources

 

 
Looking for am241be sources. I know its been asked before but I have not seen anyone ask in a while. Looking for 3 and/or 5 ci.
 
Dub


Reply | Forward | Messages in this Topic (4)
#7386 From: robin singh <rabin20866@...>
Date: Thu Nov 19, 2009 11:11 am
Subject: querry 		rabin20866
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Send Email Send Email
 
does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.
thanx in advance

    robin singh


Reply | Forward | Messages in this Topic (18)
#7387 From: "zouby" <zubaimania@...>
Date: Thu Nov 19, 2009 3:20 pm
Subject: owen setting tool for magna range plugs 		zubaimania
Offline Offline
Send Email Send Email
  
hello guys,
recently i hv been having problems  with the owen setting tool 4 magna range
tubing plugs...n  ifreqentlywith the baker 20 setting tool 4 cibp...hv lost abt 
5  tools in  hole...after settin  the plug...am stuck  =   my hing 2 bra the wek
[point n leaving the tool in hole..
i need help i solving this riddle. what cud hv been goin wrong?...
the  last incident. the owen setting tool sheared into 2  downhole. when i anted
2 break  the weak  point!!!

help urgenmtly  pls

Reply | Forward | Messages in this Topic (6)
#7388 From: "kn4tx" <kn4tx@...>
Date: Thu Nov 19, 2009 3:34 pm
Subject: Re: Red Cement 		kn4tx
Offline Offline
Send Email Send Email
  
Red cement and a plaque stating the depth and type of source are required by
regulation in the US. Red cement is a warning should the plaque go missing and
an operator return to the well drilling returns of red cement should alert them
that there is a source there.

Tony

--- In wireline@yahoogroups.com, robin singh <rabin20866@...> wrote:
>
> some iron oxide mixed with cement can give red colour to cement. there are
cement knoen as red oxide cement available in the market but they are mainly
used for anti rust. wonder what the objective of goverment is in putting red
cement.
>
>
>     robin singh
>
> --- On Fri, 13/11/09, GaryF <garyfloyd94@...> wrote:
>
>
> From: GaryF <garyfloyd94@...>
> Subject: [wireline] Red Cement
> To: wireline@yahoogroups.com
> Date: Friday, 13 November, 2009, 17:06
>
>
>  
>
>
>
> What can be mixed in with cement to make it red in color. An open hole company
lost a source in a well and the government regulators want red cement dumped on
top of the fish. The local cement companies don't have any red coloring. thanks.
>
> Gary
>

Reply | Forward | Messages in this Topic (5)
#7389 From: "Labriet Andre" <andre.labriet@...>
Date: Thu Nov 19, 2009 7:17 pm
Subject: RE: querry 		andre_labriet
Offline Offline
Send Email Send Email
 

Would be interesting indeed   darcys  from  Gr  api .

 

Andre LABRIET

Switchboard:+ 33 1 41 59 23 00 

Direct +33141 59 23 72

Mobile +33 6 66 10 11 36   

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroups.com
Subject: [wireline] querry

 

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

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Reply | Forward | Messages in this Topic (18)
#7390 From: "Robert Helms" <rhelms@...>
Date: Fri Nov 20, 2009 1:55 pm
Subject: RE: querry 		bob_prodlog
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Send Email Send Email
 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro.org/mslib/app/Preview.do?paperNumber=SPE-000655-G&societyCode=SPE

 

http://www.onepetro.org/mslib/servlet/onepetropreview?id=SPE-001013-G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls.org/pubs-cd.php

 

Bob Helms

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroups.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 


Reply | Forward | Messages in this Topic (18)
#7391 From: chuck.merritt@...
Date: Fri Nov 20, 2009 6:38 pm
Subject: RE: query 		chucks_stuff...
Offline Offline
Send Email Send Email
 

Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@...> wrote:

From: Robert Helms <rhelms@...>
Subject: RE: [wireline] querry
To: wireline@yahoogroups.com
Date: Friday, November 20, 2009, 6:55 AM

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 


Reply | Forward | Messages in this Topic (18)
#7392 From: Shaukat Ali <shaligeo@...>
Date: Fri Nov 20, 2009 8:10 pm
Subject: RE: query 		shaligeo
Offline Offline
Send Email Send Email
 

Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo.webs.com
http://www.linkedin.com/in/shaukataliroy


 



 
To: wireline@yahoogroups.com
From: chuck.merritt@...
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 

Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp.com> wrote:

From: Robert Helms <rhelms@cbgcorp.com>
Subject: RE: [wireline] querry
To: wireline@yahoogroups.com
Date: Friday, November 20, 2009, 6:55 AM

 


Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 


Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

Reply | Forward | Messages in this Topic (18)
#7393 From: "J. Craig Tingey" <logboy.t@...>
Date: Sun Nov 22, 2009 5:36 am
Subject: Re: query 		logboywireline
Offline Offline
Send Email Send Email
 

The Smith publication referred to previously is on the poorly referenced CD offered by the CWLS (URL provided by others previously).  I have included the cover page of this 10 page paper published in the CWLS Jour. in Dec. 1974.  In order to comply with copyright laws, you will need to purchase the entire CD to obtain the paper for your use in research.  Perhaps some other source would make more sense if you have access to this journal in a local university library.

-logboy.t


Reply | Forward | Messages in this Topic (18)
#7394 From: Shaukat Ali <shaligeo@...>
Date: Sun Nov 22, 2009 10:20 am
Subject: FW: query 		shaligeo
Offline Offline
Send Email Send Email
 
Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 


To: wireline@yahoogroups.com
From: shaligeo@...
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 

Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo.webs.com
http://www.linkedin.com/in/shaukataliroy


 



 
To: wireline@yahoogroups.com
From: chuck.merritt@wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 

Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp.com> wrote:

From: Robert Helms <rhelms@cbgcorp.com>
Subject: RE: [wireline] querry
To: wireline@yahoogroups.com
Date: Friday, November 20, 2009, 6:55 AM

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 



Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.


Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

Reply | Forward | Messages in this Topic (18)
#7395 From: "Michael" <mridder@...>
Date: Sat Nov 21, 2009 2:03 pm
Subject: Mud Resistivity Meters 		michael_ridder
Offline Offline
Send Email Send Email
  
Does anyone know, or have used Fann Mud Resistivity meters (or equivalent) for
sale that are in good working order? Also, looking for mud presses.

Reply | Forward | Messages in this Topic (1)
#7396 From: "K V S Rao" <kvsrao@...>
Date: Sat Nov 21, 2009 4:43 am
Subject: RE: query 		vsr.kavi
Offline Offline
Send Email Send Email
 
***********************
This message has been scanned by the InterScan for CSC SSM and found to be free of known security risks.
***********************

            What Chuck says appeals to me. When we look at a GR log, shale base line has the highest API counts (GR Scale may be 0 – 200 API, 0-150 API, 0-100 API depending upon the activity of the formations in a well) whereas, sand base line has the lowest API counts. This implies that the relationship is “inverse”. We all know that Shales, which are not generally permeable, have more radioactive content than Sands in general. Again this is subject to the mineral content of the Sands. Above mentioned simple explanation is what I can understand, without going into the details of quantitative relationships.

 

If the question is how to determine quantitative value of Permeability from API GR counts, it is for the experts to come out. I am also interested to know more on this aspect.

 

Kavi.

Chief Engineer (Well Logging),

Oil India Limited,

Assam, India.

E-mail: kvsrao@...

 

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of Shaukat Ali
Sent: Saturday, November 21, 2009 1:40 AM
To: wireline@yahoogroups.com
Subject: RE: [wireline] query

 

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo.webs.com
http://www.linkedin.com/in/shaukataliroy


 



 

To: wireline@yahoogroups.com
From: chuck.merritt@wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp.com> wrote:


From: Robert Helms <rhelms@cbgcorp.com>
Subject: RE: [wireline] querry
To: wireline@yahoogroups.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

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Reply | Forward | Messages in this Topic (18)
#7397 From: chuck.merritt@...
Date: Sun Nov 22, 2009 3:29 pm
Subject: Re: FW: query 		chucks_stuff...
Offline Offline
Send Email Send Email
 
Shaukat,
 
The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!
 
Interesting questions to be answered!
 
Thanks,
 
Chuck Merritt
President - WELLOG


--- On Sun, 11/22/09, Shaukat Ali <shaligeo@...> wrote:

From: Shaukat Ali <shaligeo@...>
Subject: FW: [wireline] query
To: wireline@yahoogroups.com
Date: Sunday, November 22, 2009, 3:20 AM

 
Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 


To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 

Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 
To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 

Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:

From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 



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Reply | Forward | Messages in this Topic (18)
#7398 From: clive sirju <csirju@...>
Date: Sun Nov 22, 2009 4:15 pm
Subject: Re: FW: query 		csirju
Offline Offline
Send Email Send Email
 
Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.
I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property. These are all related to the geological history and depositional environment.
That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.
The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.
If you anyone need references on permeabilty sources, let me know and I can send a couple papers.
 
Regards
Clive Sirju


--- On Sun, 11/22/09, chuck.merritt@... <chuck.merritt@...> wrote:

From: chuck.merritt@... <chuck.merritt@...>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroups.com
Date: Sunday, November 22, 2009, 3:29 PM

 
Shaukat,
 
The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!
 
Interesting questions to be answered!
 
Thanks,
 
Chuck Merritt
President - WELLOG


--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:

From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 
Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 

Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 
To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 

Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:

From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 



Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.


Reply | Forward | Messages in this Topic (18)
#7399 From: Shaukat Ali <shaligeo@...>
Date: Sun Nov 22, 2009 8:30 pm
Subject: RE: query 		shaligeo
Offline Offline
Send Email Send Email
 
Quick question please:
 
Do permeable formations contribute more gamma ray counts as compared to tight or less permeable formations of same lithology? I mean a tight zone within a same formation will contribute low GR values as compared to other permeable zones of same formation, if suppose the distribution of radioactive minerals is almost uniform thoughout the formation?
 
Thanks & Kind Regards,
 
Shaukat Ali


 
To: wireline@yahoogroups.com
From: kvsrao@...
Date: Sat, 21 Nov 2009 10:13:49 +0530
Subject: RE: [wireline] query

 
***********************
This message has been scanned by the InterScan for CSC SSM and found to be free of known security risks.
***********************

            What Chuck says appeals to me. When we look at a GR log, shale base line has the highest API counts (GR Scale may be 0 200 API, 0-150 API, 0-100 API depending upon the activity of the formations in a well) whereas, sand base line has the lowest API counts. This implies that the relationship is inverse. We all know that Shales, which are not generally permeable, have more radioactive content than Sands in general. Again this is subject to the mineral content of the Sands. Above mentioned simple explanation is what I can understand, without going into the details of quantitative relationships.

 

If the question is how to determine quantitative value of Permeability from API GR counts, it is for the experts to come out. I am also interested to know more on this aspect.

 

Kavi.

Chief Engineer (Well Logging),

Oil India Limited,

Assam, India.

E-mail: kvsrao@oilindia.in

 

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of Shaukat Ali
Sent: Saturday, November 21, 2009 1:40 AM
To: wireline@yahoogroups.com
Subject: RE: [wireline] query

 

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo.webs.com
http://www.linkedin.com/in/shaukataliroy


 



 

To: wireline@yahoogroups.com
From: chuck.merritt@wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp.com> wrote:


From: Robert Helms <rhelms@cbgcorp.com>
Subject: RE: [wireline] querry
To: wireline@yahoogroups.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

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Reply | Forward | Messages in this Topic (18)
#7400 From: robin singh <rabin20866@...>
Date: Mon Nov 23, 2009 5:33 am
Subject: RE: query 		rabin20866
Offline Offline
Send Email Send Email
 
dear shaukat,
look at the situation from a different angle.if there is porosity, it has to be folled up with something. it cannot  act like vaccume.the most likely fluid  is water or/ and hydrocarbon. now if you are doing some log processing , then try to recall how much GR value you are giving to  water and oil/gas.obviously if the pores are filled with water or H/C the GR  (TotalGr) value will be low.( unless the water contains some dissolved Uranium.(Remember uranium is highly soluble in water) Now imagine the pores to be filled with some matrix/ shale (i.e some rock). Shales as you know would  increase the GR value on the logs. Again if the rock is of micaceous nature one can expect more GR.
of course if you have tight but clean sand sands, then your GR values will be low.

 
    robin singh


--- On Fri, 20/11/09, Shaukat Ali <shaligeo@...> wrote:

From: Shaukat Ali <shaligeo@...>
Subject: RE: [wireline] query
To: wireline@yahoogroups.com
Date: Friday, 20 November, 2009, 20:10

 

Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 
To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 

Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:

From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 


Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.


Reply | Forward | Messages in this Topic (18)
#7401 From: "Jim LoCoco" <jim.lococo@...>
Date: Mon Nov 23, 2009 4:29 pm
Subject: RE: FW: query 		jim.lococo@...
Send Email Send Email
 

Clive…..

 

You are correct.  We must remember that gamma logs only responds to the presence of natural gamma radiation, primarily due to gamma-emitting isotopes of potassium, uranium and thorium and their daughter isotopes.  Unless you have excellent empirical knowledge, using natural gamma to estimate permeability is dubious.  Another common logging tool measurement that does a better job of estimation in-situ permeability is FWS tube-wave attenuation log.

 

 

Regards,

 

James J. LoCoco, C.P.G., SAGEEP 2010 Technical Chair

Mount Sopris Instrument Co., Inc.

4975 E. 41st Ave.

Denver, CO  80216

ph: 303.279.3211 x112, fx: 303.279.2730

email: jim.lococo@...

http://www.mountsopris.com

 

Contact me about presenting a professional paper or poster at the SAGEEP Conference April 11-15, 2010 at Keystone, CO USA.

 

 

 

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of clive sirju
Sent: Sunday, November 22, 2009 9:15 AM
To: wireline@yahoogroups.com
Subject: Re: FW: [wireline] query

 

 

Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.

I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property. These are all related to the geological history and depositional environment.

That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.

The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.

If you anyone need references on permeabilty sources, let me know and I can send a couple papers.

 

Regards

Clive Sirju



--- On Sun, 11/22/09, chuck.merritt@... <chuck.merritt@...> wrote:


From: chuck.merritt@... <chuck.merritt@...>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroups.com
Date: Sunday, November 22, 2009, 3:29 PM

 

Shaukat,

 

The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!

 

Interesting questions to be answered!

 

Thanks,

 

Chuck Merritt

President - WELLOG



--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 

Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 

To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:


From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.


Reply | Forward | Messages in this Topic (18)
#7402 From: chuck.merritt@...
Date: Mon Nov 23, 2009 10:45 pm
Subject: Fw: HOIST & COLLECTOR 		chucks_stuff...
Offline Offline
Send Email Send Email
 
Hi,
 
I'm forwarding this to the wireline group. This looks like good equipment!
 
Reply to Ken's email or contact me offline for the last 4 of the phone number.
 
Thanks,
 
Chuck


--- On Sun, 11/22/09, Old Water Dog <ripewater@...> wrote:

From: Old Water Dog <ripewater@...>
Subject: Fw: HOIST & COLECTOR
To: sales@...
Date: Sunday, November 22, 2009, 7:25 PM

2 LOGMASTER HOISTS FOR SALE
    110 V     3/16  4 CONDUCTOR LINE    3,000 FT CAPACITY    HEAVY DUTY
        NOTE BLUE YARD STICK FOR SIZE REFERENCE
 
2 CENTURY COLLECTORS
    FOUR WIRE LINE
 
OPEN TO OFFERS
 
CONTACT BY E-MAIL OR PHONE    661-822-xxxx
 
    KENYON KEMP
 
 

3 of 3 Photo(s)

GHD
GHD
GHD
GHD

Reply | Forward | Messages in this Topic (1)
#7403 From: Shaukat Ali <shaligeo@...>
Date: Mon Nov 23, 2009 8:18 pm
Subject: RE: query 		shaligeo
Offline Offline
Send Email Send Email
 

Clive,
 
Appreciate if you could send me papers on permeability?


Thanks & Kind Regards,
 
Shaukat Ali
/

 
To: wireline@yahoogroups.com
From: jim.lococo@...
Date: Mon, 23 Nov 2009 09:29:50 -0700
Subject: RE: FW: [wireline] query

 

Clive..

 

You are correct.  We must remember that gamma logs only responds to the presence of natural gamma radiation, primarily due to gamma-emitting isotopes of potassium, uranium and thorium and their daughter isotopes.  Unless you have excellent empirical knowledge, using natural gamma to estimate permeability is dubious.  Another common logging tool measurement that does a better job of estimation in-situ permeability is FWS tube-wave attenuation log.

 

 

Regards,

 

James J. LoCoco, C.P.G., SAGEEP 2010 Technical Chair

Mount Sopris Instrument Co., Inc.

4975 E. 41st Ave.

Denver, CO  80216

ph: 303.279.3211 x112, fx: 303.279.2730

email: jim.lococo@mountsopris.com

http://www.mountsopris.com

 

Contact me about presenting a professional paper or poster at the SAGEEP Conference April 11-15, 2010 at Keystone, CO USA.

 

 

 

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of clive sirju
Sent: Sunday, November 22, 2009 9:15 AM
To: wireline@yahoogroups.com
Subject: Re: FW: [wireline] query

 

 

Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.

I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property. These are all related to the geological history and depositional environment.

That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.

The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.

If you anyone need references on permeabilty sources, let me know and I can send a couple papers.

 

Regards

Clive Sirju



--- On Sun, 11/22/09, chuck.merritt@wellog.com <chuck.merritt@wellog.com> wrote:


From: chuck.merritt@wellog.com <chuck.merritt@wellog.com>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroups.com
Date: Sunday, November 22, 2009, 3:29 PM

 

Shaukat,

 

The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!

 

Interesting questions to be answered!

 

Thanks,

 

Chuck Merritt

President - WELLOG



--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 

Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 

To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:


From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.



Windows Live: Keep your friends up to date with what you do online.

Reply | Forward | Messages in this Topic (18)
#7404 From: Wijoyo Utomo <utomow@...>
Date: Tue Nov 24, 2009 6:25 am
Subject: Re: owen setting tool for magna range plugs 		utomow2005
Offline Offline
Send Email Send Email
  
Zoubi,

I guess I know the reason you got no attention from the other guys here.
Try to rewrite your email in plain English, trust me, you would get more
attention from guys like Syd, Chuck and the others.

Just my 2 cents.

Rgds,
Wijoyo


On Thu, 2009-11-19 at 15:20 +0000, zouby wrote:
>
> hello guys,
> recently i hv been having problems with the owen setting tool 4 magna
> range tubing plugs...n ifreqentlywith the baker 20 setting tool 4
> cibp...hv lost abt 5 tools in hole...after settin the plug...am stuck
> = my hing 2 bra the wek [point n leaving the tool in hole..
> i need help i solving this riddle. what cud hv been goin wrong?...
> the last incident. the owen setting tool sheared into 2 downhole. when
> i anted 2 break the weak point!!!
>
> help urgenmtly pls
>
>
>
>
>

Reply | Forward | Messages in this Topic (6)
#7405 From: Abdelkerim Abdoulaye <abdelkerim2009@...>
Date: Tue Nov 24, 2009 6:56 pm
Subject: Re: query 		abdelkerim2009
Offline Offline
Send Email Send Email
 
dear sir,Shauka Ali just to tell you that,I'm student looking for a job,please sir, if any let me know.
but there is one company of my friend Adam Mahamat here in Chad Doba oilfield  Esso Exploration and production.I would introduction the wireline to him if he can.
thanks and kind regards,

From: Shaukat Ali <shaligeo@...>
To: wireline@yahoogroups.com
Sent: Mon, November 23, 2009 9:18:55 PM
Subject: RE: [wireline] query

 


Clive,
 
Appreciate if you could send me papers on permeability?


Thanks & Kind Regards,
 
Shaukat Ali
/

 
To: wireline@yahoogroup s.com
From: jim.lococo@mountsop ris.com
Date: Mon, 23 Nov 2009 09:29:50 -0700
Subject: RE: FW: [wireline] query

 

Clive…..

 

You are correct.  We must remember that gamma logs only responds to the presence of natural gamma radiation, primarily due to gamma-emitting isotopes of potassium, uranium and thorium and their daughter isotopes.  Unless you have excellent empirical knowledge, using natural gamma to estimate permeability is dubious.  Another common logging tool measurement that does a better job of estimation in-situ permeability is FWS tube-wave attenuation log.

 

 

Regards,

 

James J. LoCoco, C.P.G., SAGEEP 2010 Technical Chair

Mount Sopris Instrument Co., Inc.

4975 E. 41st Ave.

Denver, CO  80216

ph: 303.279.3211 x112, fx: 303.279.2730

email: jim.lococo@mountsop ris.com

http://www.mountsop ris.com

 

Contact me about presenting a professional paper or poster at the SAGEEP Conference April 11-15, 2010 at Keystone, CO USA.

 

 

 

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of clive sirju
Sent: Sunday, November 22, 2009 9:15 AM
To: wireline@yahoogroup s.com
Subject: Re: FW: [wireline] query

 

 

Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.

I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property.. These are all related to the geological history and depositional environment.

That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.

The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.

If you anyone need references on permeabilty sources, let me know and I can send a couple papers.

 

Regards

Clive Sirju



--- On Sun, 11/22/09, chuck.merritt@ wellog.com <chuck.merritt@ wellog.com> wrote:


From: chuck.merritt@ wellog.com <chuck.merritt@ wellog.com>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:29 PM

 

Shaukat,

 

The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!

 

Interesting questions to be answered!

 

Thanks,

 

Chuck Merritt

President - WELLOG



--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 

Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 

To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:


From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro.org/mslib/servlet/onepetropreview?id=SPE-001013-G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.



Windows Live: Keep your friends up to date with what you do online.


Reply | Forward | Messages in this Topic (18)
#7406 From: "Iain Maxted" <iain.maxted@...>
Date: Wed Nov 25, 2009 7:43 am
Subject: RE: Owen setting tool for magna range plugs 		montykbo
Offline Offline
Send Email Send Email
 
I'd certainly agree with that!  How do you go about banning text-speak Syd??
 
It won't help the fundamental problem of getting stuck with a setting tool, but a lot of our clients run one of Guardian's Addressable Release Tools (ART) above a setting to so that they can release from a stuck tool without danger of over-stressing/breaking the cable.
 
Regards,

Iain Maxted
Managing Director

Guardian Global Technologies Ltd
Merlin House, Brunel Court
Village Farm Industrial Estate,
Pyle, Bridgend, Wales, CF33 6BL, UK

Tel: +44 (0) 1656 742100
Fax: +44 (0) 1656 742251

PLEASE DO NOT PRINT THIS E-MAIL UNLESS YOU REALLY NEED TO!

See our new website at www.ggtg.net

-----Original Message-----
From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com]On Behalf Of Wijoyo Utomo
Sent: 24 November 2009 06:26
To: wireline@yahoogroups.com
Subject: Re: [wireline] owen setting tool for magna range plugs

 

Zoubi,

I guess I know the reason you got no attention from the other guys here.
Try to rewrite your email in plain English, trust me, you would get more
attention from guys like Syd, Chuck and the others.

Just my 2 cents.

Rgds,
Wijoyo

On Thu, 2009-11-19 at 15:20 +0000, zouby wrote:
>
> hello guys,
> recently i hv been having problems with the owen setting tool 4 magna
> range tubing plugs...n ifreqentlywith the baker 20 setting tool 4
> cibp...hv lost abt 5 tools in hole...after settin the plug...am stuck
> = my hing 2 bra the wek [point n leaving the tool in hole..
> i need help i solving this riddle. what cud hv been goin wrong?...
> the last incident. the owen setting tool sheared into 2 downhole. when
> i anted 2 break the weak point!!!
>
> help urgenmtly pls
>
>
>
>
>


Reply | Forward | Messages in this Topic (6)
#7407 From: "AnaLog Services, Inc." <wireline@...>
Date: Wed Nov 25, 2009 3:20 pm
Subject: Re: Owen setting tool for magna range plugs 		sydlevine
Offline Offline
Send Email Send Email
 

It is a bit annoying, but this list is only lightly moderated.
 
Syd
 
----- Original Message -----
Sent: Wednesday, November 25, 2009 2:43 AM
Subject: RE: [wireline] Owen setting tool for magna range plugs

 

I'd certainly agree with that!  How do you go about banning text-speak Syd??
 
It won't help the fundamental problem of getting stuck with a setting tool, but a lot of our clients run one of Guardian's Addressable Release Tools (ART) above a setting to so that they can release from a stuck tool without danger of over-stressing/breaking the cable.
 
Regards,

Iain Maxted
Managing Director

Guardian Global Technologies Ltd
Merlin House, Brunel Court
Village Farm Industrial Estate,
Pyle, Bridgend, Wales, CF33 6BL, UK

Tel: +44 (0) 1656 742100
Fax: +44 (0) 1656 742251

PLEASE DO NOT PRINT THIS E-MAIL UNLESS YOU REALLY NEED TO!

See our new website at www.ggtg.net

-----Original Message-----
From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com]On Behalf Of Wijoyo Utomo
Sent: 24 November 2009 06:26
To: wireline@yahoogroups.com
Subject: Re: [wireline] owen setting tool for magna range plugs

 

Zoubi,

I guess I know the reason you got no attention from the other guys here.
Try to rewrite your email in plain English, trust me, you would get more
attention from guys like Syd, Chuck and the others.

Just my 2 cents.

Rgds,
Wijoyo

On Thu, 2009-11-19 at 15:20 +0000, zouby wrote:
>
> hello guys,
> recently i hv been having problems with the owen setting tool 4 magna
> range tubing plugs...n ifreqentlywith the baker 20 setting tool 4
> cibp...hv lost abt 5 tools in hole...after settin the plug...am stuck
> = my hing 2 bra the wek [point n leaving the tool in hole..
> i need help i solving this riddle. what cud hv been goin wrong?...
> the last incident. the owen setting tool sheared into 2 downhole. when
> i anted 2 break the weak point!!!
>
> help urgenmtly pls
>
>
>
>
>


Reply | Forward | Messages in this Topic (6)
#7408 From: clive sirju <csirju@...>
Date: Wed Nov 25, 2009 3:28 pm
Subject: RE: query 		csirju
Offline Offline
Send Email Send Email
 
You may find this useful.
 
Regards
Clive

--- On Mon, 11/23/09, Shaukat Ali <shaligeo@...> wrote:

From: Shaukat Ali <shaligeo@...>
Subject: RE: [wireline] query
To: wireline@yahoogroups.com
Date: Monday, November 23, 2009, 8:18 PM

 

Clive,
 
Appreciate if you could send me papers on permeability?


Thanks & Kind Regards,
 
Shaukat Ali
/

 
To: wireline@yahoogroup s.com
From: jim.lococo@mountsop ris.com
Date: Mon, 23 Nov 2009 09:29:50 -0700
Subject: RE: FW: [wireline] query

 

Clive…..

 

You are correct.  We must remember that gamma logs only responds to the presence of natural gamma radiation, primarily due to gamma-emitting isotopes of potassium, uranium and thorium and their daughter isotopes.  Unless you have excellent empirical knowledge, using natural gamma to estimate permeability is dubious.  Another common logging tool measurement that does a better job of estimation in-situ permeability is FWS tube-wave attenuation log.

 

 

Regards,

 

James J. LoCoco, C.P.G., SAGEEP 2010 Technical Chair

Mount Sopris Instrument Co., Inc.

4975 E. 41st Ave.

Denver, CO  80216

ph: 303.279.3211 x112, fx: 303.279.2730

email: jim.lococo@mountsop ris.com

http://www.mountsop ris.com

 

Contact me about presenting a professional paper or poster at the SAGEEP Conference April 11-15, 2010 at Keystone, CO USA.

 

 

 

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of clive sirju
Sent: Sunday, November 22, 2009 9:15 AM
To: wireline@yahoogroup s.com
Subject: Re: FW: [wireline] query

 

 

Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.

I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property. These are all related to the geological history and depositional environment.

That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.

The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.

If you anyone need references on permeabilty sources, let me know and I can send a couple papers.

 

Regards

Clive Sirju



--- On Sun, 11/22/09, chuck.merritt@ wellog.com <chuck.merritt@ wellog.com> wrote:


From: chuck.merritt@ wellog.com <chuck.merritt@ wellog.com>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:29 PM

 

Shaukat,

 

The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!

 

Interesting questions to be answered!

 

Thanks,

 

Chuck Merritt

President - WELLOG



--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 

Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 

To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:


From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s.com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.



Windows Live: Keep your friends up to date with what you do online.


Reply | Forward | Messages in this Topic (18)
#7409 From: Steve Wierenga <pureperf1@...>
Date: Wed Nov 25, 2009 11:43 pm
Subject: Sondex PLT for Sale 		pureperf1
Offline Offline
Send Email Send Email
 
We have 2 complete Sondex Ultrawire 1-11/16" PLT strings for sale.
Interested parties, please contact:
Steve Wierenga
Pure Energy Services Ltd.
Calgary, Alberta, Canada

Get the name you've always wanted ! @ymail.com or @rocketmail.com.

Reply | Forward | Messages in this Topic (6)
#7410 From: "K V S Rao" <kvsrao@...>
Date: Thu Nov 26, 2009 2:30 am
Subject: RE: query 		vsr.kavi
Offline Offline
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            Clive,

 

I appreciate you for uploading the write up on Permeability in a pdf file. Unfortunately, while trying to save it, I am getting a message that it is corrupt. Would you please upload it again. Thanks.

 

            Regards,

Kavi.

 

From: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] On Behalf Of clive sirju
Sent: Wednesday, November 25, 2009 8:58 PM
To: wireline@yahoogroups.com
Subject: RE: [wireline] query

 

 

You may find this useful.

 

Regards

Clive

--- On Mon, 11/23/09, Shaukat Ali <shaligeo@hotmail.com> wrote:


From: Shaukat Ali <shaligeo@hotmail.com>
Subject: RE: [wireline] query
To: wireline@yahoogroups.com
Date: Monday, November 23, 2009, 8:18 PM

 


Clive,
 
Appreciate if you could send me papers on permeability?

Thanks & Kind Regards,
 
Shaukat Ali
/

 

To: wireline@yahoogroup s.com
From: jim.lococo@mountsop ris.com
Date: Mon, 23 Nov 2009 09:29:50 -0700
Subject: RE: FW: [wireline] query

 

Clive…..

 

You are correct.  We must remember that gamma logs only responds to the presence of natural gamma radiation, primarily due to gamma-emitting isotopes of potassium, uranium and thorium and their daughter isotopes.  Unless you have excellent empirical knowledge, using natural gamma to estimate permeability is dubious.  Another common logging tool measurement that does a better job of estimation in-situ permeability is FWS tube-wave attenuation log.

 

 

Regards,

 

James J. LoCoco, C.P.G., SAGEEP 2010 Technical Chair

Mount Sopris Instrument Co., Inc.

4975 E. 41st Ave.

Denver, CO  80216

ph: 303.279.3211 x112, fx: 303.279.2730

email: jim.lococo@mountsop ris.com

http://www.mountsop ris.com

 

Contact me about presenting a professional paper or poster at the SAGEEP Conference April 11-15, 2010 at Keystone, CO USA.

 

 

 

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of clive sirju
Sent: Sunday, November 22, 2009 9:15 AM
To: wireline@yahoogroup s.com
Subject: Re: FW: [wireline] query

 

 

Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.

I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property. These are all related to the geological history and depositional environment.

That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.

The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models.. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.

If you anyone need references on permeabilty sources, let me know and I can send a couple papers.

 

Regards

Clive Sirju



--- On Sun, 11/22/09, chuck.merritt@ wellog.com <chuck.merritt@ wellog.com> wrote:


From: chuck.merritt@ wellog.com <chuck.merritt@ wellog.com>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:29 PM

 

Shaukat,

 

The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!

 

Interesting questions to be answered!

 

Thanks,

 

Chuck Merritt

President - WELLOG



--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 

Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 

To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:


From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [Neb.]: American Institute of Mining, Metallurgical, and Petroleum Engineers Transactions, 1957, v.. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no.. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s..com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

 

Windows Live: Keep your friends up to date with what you do online.

 

The information contained in this email and any attachments is confidential and may be subject to copyright or other intellectual property protection. If you are not the intended recipient, you are not authorized to use or disclose this information, and we request that you notify us by reply mail or telephone and delete the original message from your mail system.

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Reply | Forward | Messages in this Topic (18)
#7411 From: "S.Mohsen Alavi" <alavitop@...>
Date: Thu Nov 26, 2009 9:01 am
Subject: FATHOM gyroscopic survey tool 		alavitop
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Guys,
 
I'm looking for some information about FATHOM gyro systems. And also I will appreciate any help to find a dealer for gyro sensors.
 
Thanks in advance.
BR,
S.Mohsen Alavi


Reply | Forward | Messages in this Topic (1)
#7412 From: clive sirju <csirju@...>
Date: Thu Nov 26, 2009 9:43 am
Subject: RE: query 		csirju
Offline Offline
Send Email Send Email
 
Lets try this again then.

--- On Thu, 11/26/09, K V S Rao <kvsrao@...> wrote:

From: K V S Rao <kvsrao@...>
Subject: RE: [wireline] query
To: "wireline@yahoogroups.com" <wireline@yahoogroups.com>
Date: Thursday, November 26, 2009, 2:30 AM

 
************ ********* **
This message has been scanned by the InterScan for CSC SSM and found to be free of known security risks.
************ ********* **

            Clive,

 

I appreciate you for uploading the write up on Permeability in a pdf file. Unfortunately, while trying to save it, I am getting a message that it is corrupt. Would you please upload it again. Thanks.

 

            Regards,

Kavi.

 

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of clive sirju
Sent: Wednesday, November 25, 2009 8:58 PM
To: wireline@yahoogroup s.com
Subject: RE: [wireline] query

 

 

You may find this useful.

 

Regards

Clive

--- On Mon, 11/23/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: RE: [wireline] query
To: wireline@yahoogroup s.com
Date: Monday, November 23, 2009, 8:18 PM

 


Clive,
 
Appreciate if you could send me papers on permeability?

Thanks & Kind Regards,
 
Shaukat Ali
/

 

To: wireline@yahoogroup s.com
From: jim.lococo@mountsop ris.com
Date: Mon, 23 Nov 2009 09:29:50 -0700
Subject: RE: FW: [wireline] query

 

Clive…..

 

You are correct.  We must remember that gamma logs only responds to the presence of natural gamma radiation, primarily due to gamma-emitting isotopes of potassium, uranium and thorium and their daughter isotopes.  Unless you have excellent empirical knowledge, using natural gamma to estimate permeability is dubious.  Another common logging tool measurement that does a better job of estimation in-situ permeability is FWS tube-wave attenuation log.

 

 

Regards,

 

James J. LoCoco, C.P.G., SAGEEP 2010 Technical Chair

Mount Sopris Instrument Co., Inc.

4975 E. 41st Ave.

Denver, CO   80216

ph: 303.279.3211 x112, fx: 303.279.2730

email: jim.lococo@mountsop ris.com

http://www.mountsop ris.com

 

Contact me about presenting a professional paper or poster at the SAGEEP Conference April 11-15, 2010 at Keystone, CO USA.

 

 

 

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of clive sirju
Sent: Sunday, November 22, 2009 9:15 AM
To: wireline@yahoogroup s.com
Subject: Re: FW: [wireline] query

 

 

Just started following the thread of responses on using GR to determine permeability. I am actually doing some research on permeabilty upscaling so I have gone through all the various sources of estimating permeabilty from well logs.

I believe it was already mentioned for a well behaved conventional clastic sequence low GR normally correlates to higher permeability so there is an inverse relation. But we need to consider what are the geological controls on permeability and these are sorting,grain shape and grain size and diagenetic processes. Keep in mind that permeability is also a tensorial property. These are all related to the geological history and depositional environment.

That being said I would not rank GR highly as a source of permeabilty as there are too many unknowns. What you may want to do is try a multi-variate approach using two or three curves to determine permeabilty but it must be tied to to some kind of facies log or geological description.

The best source of permeability in the industry is currently the magnetic resonance and mobilities from wireline formation testers. With these two pieces of data you can get an estimate of the reservoir's effective permeability which is what is needed to put into the models.. Offcourse if you have core data that will be even better but sometimes we don't have that luxury.

If you anyone need references on permeabilty sources, let me know and I can send a couple papers.

 

Regards

Clive Sirju



--- On Sun, 11/22/09, chuck.merritt@ wellog.com <chuck.merritt@ wellog.com> wrote:


From: chuck.merritt@ wellog.com <chuck.merritt@ wellog.com>
Subject: Re: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:29 PM

 

Shaukat,

 

The local variables include all of the contributing factors that control permeability. The reason for local variables is because many factors must be summed together on a case by case basis. Permeability is often controlled by fractures. Are the fractures horizontal or vertical? If a quantitative value for permeability is necessary, then a number has to be assigned to the variables that control permeability. Depth, weight of overburden, compression of fractures, each one is an additional variable. Consequently, each must be assigned a value. Fractures are not related to GAPI at all unless a more or less radioactive fluid has migrated in the fracture zones. A major control variable in permeability is limestone filling and sealing of the interconnected porosity. The control factors are additive and multiplicative. The control factors once having had a value attached may have greater influence than the single GAPI factor!

 

Interesting questions to be answered!

 

Thanks,

 

Chuck Merritt

President - WELLOG



--- On Sun, 11/22/09, Shaukat Ali <shaligeo@hotmail. com> wrote:


From: Shaukat Ali <shaligeo@hotmail. com>
Subject: FW: [wireline] query
To: wireline@yahoogroup s.com
Date: Sunday, November 22, 2009, 3:20 AM

 

Hi Chuck,
 
I found answer in your email in the tail. One question please, is there any value range for this local complex variables?

Do we need to calibrate it with existing core or other data?

 

Thanks & Kind Regards,
 
Shaukat 
 

 

To: wireline@yahoogroup s.com
From: shaligeo@hotmail. com
Date: Sat, 21 Nov 2009 01:10:04 +0500
Subject: RE: [wireline] query

 


Guys,
 
As per my theoratical knowledge, permeable formations will contribute more gamma ray counts as compared to tight or less permeable formations of same lithology. Does this property of formation also help to maintain a relationship b/w natural gamma ray counts and permeability?

Thanks & Kind Regards,
 
Shaukat Ali
Petrophysicist
Pak Cell   : +92 333 5106755

 

http://shaligeo. webs.com
http://www.linkedin .com/in/shaukata liroy


 



 

To: wireline@yahoogroup s.com
From: chuck.merritt@ wellog.com
Date: Fri, 20 Nov 2009 10:38:12 -0800
Subject: RE: [wireline] query

 


Of course gamma ray API is related to permeability.

Natural Gamma radiation is related to sandstone/carbonate formations vs shales (tight formations). Permeable lithologies produce SP. SP overlays GAPI.

SP is probably the most simple measurement, relies on "ion flow" which requires permeability i.e interconnected fluid channels in a reservoir rock. SP is directly related to permeability. The formula relating GAPI to Permeability would have to be based on empirical data. There is an inverse approximate "correlation" between the two.

i.e. k = 1/GAPI * (local complex variables)

Thanks,

Chuck Merritt
President - WELLOG
www.wellog.com


--- On Fri, 11/20/09, Robert Helms <rhelms@cbgcorp. com> wrote:


From: Robert Helms <rhelms@cbgcorp. com>
Subject: RE: [wireline] querry
To: wireline@yahoogroup s.com
Date: Friday, November 20, 2009, 6:55 AM

 

 

Robin Singh,

I found the following references to relating permeability to gamma ray measurements.  Perhaps these papers will help you.

 

Rabe, C.L., 1958, A relation between gamma radiation and permeability, Denver- Julesburg Basin [ Neb. ]: American Institute of Mining , Metallurgical, and Petroleum Engineers Transactions, 1957, v.. 210, p. 358-360.

 

http://www.onepetro .org/mslib/ app/Preview. do?paperNumber= SPE-000655- G&societyCode= SPE

 

http://www.onepetro .org/mslib/ servlet/onepetro preview?id= SPE-001013- G&soc=SPE

 

  • Gaur, R.S., and Singh, Inderjit, 1965, Relationship between permeability and gamma ray intensity for the Oligocene sand of an Indian field: Oil and Natural Gas Commission of India Bulletin, v. 2, no.. 1, p. 74-77.

You indicated the original document you are searching for was a CWLS presentation; Is it included on their CD here?

 

http://www.cwls. org/pubs- cd.php

 

Bob Helms

From: wireline@yahoogroup s.com [mailto:wireline@ yahoogroups. com] On Behalf Of robin singh
Sent: Thursday, November 19, 2009 12:11 PM
To: wireline@yahoogroup s..com
Subject: [wireline] querry

 

does any one of you guys have this paper    "Field results using GR for calculating permeability" this is by WDM Smith and is a CWLS  1974 presentatin.

thanx in advance

    robin singh

 

 

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

Windows Live: Friends get your Flickr, Yelp, and Digg updates when they e-mail you.

 

 

Windows Live: Keep your friends up to date with what you do online.

 
The information contained in this email and any attachments is confidential and may be subject to copyright or other intellectual property protection. If you are not the intended recipient, you are not authorized to use or disclose this information, and we request that you notify us by reply mail or telephone and delete the original message from your mail system.

************ ********* ********* **DISCLAIMER* ********* ********* ********* ********* ******
Information contained and transmitted by this e-mail is confidential and proprietary to Oil India Ltd. and is intended for use only by the addressee. If you are not the intended recipient , you are notified that any dissemination or copying of this e-mail is strictly prohibited and you are requested to delete this e-mail immediately and notify the originator. Oil India does not enter into any binding agreement with any party by e-mail. Any views expressed by an individual do not necessarily reflect the view of Oil India. Oil India is not responsible for the consequences of any actions taken on the basis of information provided. While this e-mail has been checked for all known viruses the addressee should also scan for viruses. To know more about Oil India please visit http://www.oil- india.com
************ ********* ********* ********* ********* ********* ********* ********* ********* *********
The information contained in this email and any attachments is confidential and may be subject to copyright or other intellectual property protection. If you are not the intended recipient, you are not authorized to use or disclose this information, and we request that you notify us by reply mail or telephone and delete the original message from your mail system.


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#7413 From: "dheddleston" <dheddleston@...>
Date: Thu Nov 26, 2009 6:53 pm
Subject: Re: Sondex PLT for Sale 		dheddleston
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Hi sir, what exactly are you selling & what vintage?
Please respond to dheddleston@..., thanks

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> We have 2 complete Sondex Ultrawire 1-11/16" PLT strings for sale.
> Interested parties, please contact:
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> Steve Wierenga
> Pure Energy Services Ltd.
> Calgary, Alberta, Canada
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#7414 From: Shaukat Ali <shaligeo@...>
Date: Thu Nov 26, 2009 9:25 pm
Subject: Sw Methods 		shaligeo
Offline Offline
Send Email Send Email
 

Guys,
 
Can anybody provide me the material or it's source site for "comparison of different methods of Sw calculations, their limitations and advantages / disadvantages" Like comparison b/w Indonesian and Dual water and conditions in which used.
 

Thanks & Kind Regards,
 
Shaukat


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