04740319 is referenced by 41 patents and cites 14 patents.

This invention relates to an improved oil-base drilling fluid composition and its use. The improved oil-base drilling fluid composition of this invention is characterized by thixotropic properties which result in a yield point of at least 4.0. The composition includes an oil-base continuous phase and a gelling composition. The gelling composition includes a latex material in combination with one or more functional monomers selected from the group consisting of amides, amines, sulfonates, monocarboxylic acids, dicarboxylic acids and combinations thereof and wherein at least one of the monomers includes a nitrogen containing material.

Title
Oil base drilling fluid composition
Application Number
596802
Publication Number
4740319
Application Date
January 29, 1986
Publication Date
April 26, 1988
Inventor
Carmelita Salandanan
1686 Creekside Dr., Sugarland, 77478
TX, US
Arvind D Patel
6511 Marisol, Houston, 77083
TX, US
Agent
Arnold White & Durkee
IPC
C09K 7/06
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