Methods for producing an emulsifier suitable for use in an emulsion drilling fluid

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United States of America Patent

PATENT NO 11345843
APP PUB NO 20220098466A1
SERIAL NO

17034170

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Abstract

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According to one or more embodiments of the present disclosure, a method for producing an emulsifier suitable for use in an emulsion drilling fluid may comprise esterifying a processed vegetable oil to produce a first mixture comprising fatty acid alkyl esters. The processed vegetable oil may comprise less than 1 wt. % of compounds having an atmospheric boiling point less than or equal to 150° C. The method may further comprise removing at least 99 wt. % of each of glycerol, water, and short-chain alcohols having a main chain of less than or equal to 12 carbon atoms from the first mixture to produce a modified mixture, and hydrolyzing the fatty acid alkyl esters of the modified mixture with a base to produce the emulsifier comprising at least one salt of a fatty acid. Emulsion drilling fluids comprising the emulsifier and methods of producing emulsion drilling fluids are also disclosed.

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Patent Owner(s)

Patent OwnerAddress
SAUDI ARABIAN OIL COMPANYDHAHRAN 31311

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amanullah, Md Dhahran, SA 144 1625
Ramasamy, Jothibasu Dhahran, SA 59 325

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