Acoustics – Geophysical or subsurface exploration – Well logging
Patent
1995-06-01
1996-08-27
Lobo, Ian J.
Acoustics
Geophysical or subsurface exploration
Well logging
16625017, G01V 140
Patent
active
055503314
ABSTRACT:
A surfactant composition is used to repel down-hole fluids such as crude oil and water to prevent their adherence to a down-hole instrument for an extended period of time. A down-hole fluid repelling surfactant, preferably in the form of a liquid solution, is applied to an exterior surface of the instrument, dried, and polished to prevent down-hole fluids from adhering to the surface. A preferred liquid surfactant solution contains as an active ingredient an amount of tricresyl phosphate effective to repel down-hole fluids such as oil and water.
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Information Disclosure Statement of Jack T. Thompson, dated Dec. 16, 1994.
Information Disclosure Statement of Philip K. Schultz, dated Dec. 16, 1994.
Lobo Ian J.
Westech Geophysical, Inc.
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