Take a look at the line tension curve you will see that the tool is probably dragging along the pipe and jerking, you can also see this fluctuation in the pipe...
Gentlemen, We have a client looking for an OPEN HOLE LOGGING ENGINEER willing to work in South America. Spanish speaking is a must. Please send resumes to...
Yep Burl, when you turn your business over to a computer, you are no longer a log analyst, you are a computer operator....Okieduc aka MrMack Ray Ethridge...
I was hoping there would be a discussion started about this question but so far no one has responded. Before I say anything I have to say I am a rank amateur...
Ray, I believe you're right. The SP voltage is a measurement of the downhole formation spontaneous potential voltage with reference to an uphole surface...
Ray, Okie, I sure have read a lot of disclaimers about log interpretation. "XYZ, inc. represents that the log data has been obtained using approved methods and...
The tension doesn't show any change that correlates to the phantoms. My theory was - the pipe was handled with electromagnetic cranes. After several weeks of...
I was in Russia last week and found that magnetic handling of casing has resulted in similar noise generation on logs from magnetic thickness tools. This can...
Dave, At the ripe old age of 26, I heard on the radio of a company called Schlumberger pronounced "slum-burger" having a position for a tech in Alaska, I...
Ray, I know logging while directional drilling is bringing a lot of money to Oklahoma State. From the work that is being funded they are trying to get a lot...
Ray Ethridge and Charles Merrit, Thank you very much for your insight, your information has been most useful and with it we can now give some educated answer...
Gordon, That is a good point, I had not even thought about having large pieces of rotating magnetic material sometimes less than an inch away from where you...
From John Jordan...I wanted to pass this along to all of the wireline group members of this notice of the passing of a fine gentleman that I know we will all...
Ray, In a lot of cases problems like these can be taken out by having two systems in parallel that are equally effected by the "noise" but not the signal and...
SP is the most simple of any logging measurement. It uses two electrodes. One electrode called a mud fish goes swimming in the mud pit or a shallow water...
If I am remembering my wireline history BPB had an SP curve as part of their revolutionary digital openhole tool string that was referenced to a downhole...
The SP voltage can be measured in perforated sections of plastic casing. I expect that steel casing would effectively short circuit the low-level sp currents....
An interesting follow-up for the curious; http://www.wellog.com/hilltop_015.jpg http://www.wellog.com/hilltop_028.jpg Shows measurement of SP 1500 feet...
Please forgive my abysmal ignorance; i am an electronics technician by trade and know almost less thannothing about logging and oil well conditions. 1) You...
It's electronic and ionic; Spontaneous potential is created through an electro-chemical process that involves ion charge partitioning. The resulting voltage is...
I get lots of enquiries about the Americium shortage, and about the availability of new or used AmBe sources. It looks like Californium-252 spontaneous...
I have a list of neutron sources at: http://www.wellog.com/charts/neutron_sources.jpg Thanks, Chuck Merritt President - WELLOG ... the availability of new or...
You can get for free the API RP-67 document in the API Web page Servio Tulio Subiaur Artiachi De: wireline@yahoogroups.com [mailto:wireline@yahoogroups.com] En...
Subiaur Artiachi Serv...
ssubiaur@...
Jul 9, 2007 6:11 pm
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Loyd: Yes, thanks to railing on this list, and the valiant efforts of Kenny Jordan. The link is on this page: http://www.logwell.com/tech/safety/index.html Syd...
Both pages have been updated this afternoon: http://www.logwell.com/tech/nuclear/sealed_sources.html http://www.logwell.com/tech/nuclear/Californium-252.html ...
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