04659486 is referenced by 13 patents and cites 29 patents.

An additive for use with a water-in-oil emulsion type fluid to reduce the viscosity of the fluid to a desired range comprising a fatty acid polyester containing at least 300 carbon atoms.

Title
Use of certain materials as thinners in oil-based drilling fluids
Application Number
474614
Publication Number
4659486
Application Date
February 11, 1986
Publication Date
April 21, 1987
Inventor
Bobby R Harmon
Aberdeen
GB
Agent
Robert A Kent
Assignee
Halliburton Company
OK, US
IPC
C09K 9/00
C09K 3/00
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