G - Physics – 01 – V
Patent
G - Physics
01
V
324/10
G01V 3/18 (2006.01) G01V 3/26 (2006.01)
Patent
CA 1084114
Abstract of the Disclosure Method and apparatus for electrical logging in a mud-filled borehole by sensing redox potential and other formation characteristics. An elongated, tubular probe body contains spaced-apart reference and potential measuring electrodes which extend longitudinally thereof and are adapted to make external contact with the borehole fluid at the stream- lined surface of the probe nose. The reference electrode is a chemical type formed of a metal electrode immersed in an electrolyte-filled compartment separated from the external borehole fluid by a pressure-compensating diaphragm in the probe side wall. A fluid bridge is established between the lower end of the reference electrode and the mud of the bore- hole through the insertion of a permeable ceramic wick. The diaphragm substantially equalizes pressure between the bore- hole fluid and the electrolyte so as to prevent either loss or contamination of the electrolyte, a feature not found in prior art devices. An optional heavy electrolyte compartment within the probe body may be interposed between the sidewall diaphragm and the reference electrode, thus maintaining a positive leak pressure into the mud even under high pressure borehole conditions.
291958
Coffee Robert D.
Gant Orland J.
Hearn Daniel P.
Howell Eddie P.
Atlantic Richfield Company
Osler Hoskin & Harcourt Llp
LandOfFree
Logging probe for making redox potential measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Logging probe for making redox potential measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logging probe for making redox potential measurements will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-123965