Electrically conductive oil-based mud

Details Electrically conductive oil-based mud Electrically conductive oil-based mud

2006-09-26

2006-09-26

Tucker, Philip C. (Department: 1712)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S103000, C507S136000, C507S138000

Reexamination Certificate

active

07112557

ABSTRACT:
An electrically conductive oil mud meeting the fluid requirements for resistive logging tools and a method for preparing such mud is disclosed. The fluid has been optimized to deliver performance in a manner as similar to that of a traditional invert emulsion drilling fluid as is practical while still maintaining the required electrical conductivity for resistivity-based logging tools. This electrically conductive oil-based mud comprises a polar synthetic ester base and complimentary ester surfactants, one being more oil soluble, the other being more water soluble. The surfactants interact synergistically to provide dense packing of micelles at the palisade layer. This fluid is oil-wetting to solids, and in general behaves like a traditional oil mud.

REFERENCES:
patent: 2417850 (1947-03-01), Winslow
patent: 2739120 (1956-03-01), Fischer
patent: 2759798 (1956-08-01), Waring et al.
patent: 3133592 (1964-05-01), Tomberlin
patent: 3294169 (1966-12-01), O'Brien
patent: 3294184 (1966-12-01), O'Brien
patent: 3696866 (1972-10-01), Dryden
patent: 3880764 (1975-04-01), Donham
patent: 4140180 (1979-02-01), Bridges et al.
patent: 4464269 (1984-08-01), Walker et al.
patent: 4557142 (1985-12-01), Hensley et al.
patent: 4662438 (1987-05-01), Taflove et al.
patent: 4729987 (1988-03-01), Reifschneider
patent: 4772407 (1988-09-01), Carlson
patent: 4875927 (1989-10-01), Tadros
patent: 5087382 (1992-02-01), Ishino et al.
patent: 5109922 (1992-05-01), Joseph
patent: 5122293 (1992-06-01), Eusebi et al.
patent: 5282509 (1994-02-01), Schurr, III
patent: 5504062 (1996-04-01), Johnson
patent: 5595680 (1997-01-01), Bryant
patent: 5604441 (1997-02-01), Freese, V et al.
patent: 5680900 (1997-10-01), Nguyen et al.
patent: 5872443 (1999-02-01), Williamson
patent: 5881813 (1999-03-01), Brannon et al.
patent: 5977031 (1999-11-01), Patel
patent: 5981447 (1999-11-01), Chang et al.
patent: 6006831 (1999-12-01), Schlemmer et al.
patent: 6022833 (2000-02-01), Mueller et al.
patent: 6029755 (2000-02-01), Patel
patent: 6328102 (2001-12-01), Dean
patent: 2002/0130429 (2002-09-01), Endo et al.
patent: 38 30 836 (1988-09-01), None
patent: 0 381 198 (1990-08-01), None
patent: 406-234985 (1994-08-01), None
patent: WO 00 41480 (2000-07-01), None
Paul D. Huibers, “Surfactant Self-Assembly, Kinetics and Thermodynamics of Micellar and Microemulsion Systems,”Chpt. 3, Ph.D. Dissertation Presented to the Graduate School of the Univ. of Florida 1996, available on the internet at http://surfactants.net/thesis/chapter3.htm, accessed as of May 15, 2003, publication date unknown.

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