Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 22, 2006
Patent Application Number
10937127
Date Filed
September 9, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of improving the lubricity of an aqueous based drilling fluid composed of an aqueous base fluid, and a weighting agent. The method involves the addition of an effective amount of a phospholipid to substantially reduce the coefficient of friction when compared to the fluid absent the phospholipids. Preferably the phospholipids have the structure:
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