The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2017
Filed:
May. 06, 2014
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/00 (2006.01); C09K 8/16 (2006.01); E21B 21/06 (2006.01); C09K 8/18 (2006.01); C09K 8/035 (2006.01); C11C 3/00 (2006.01); C10M 129/70 (2006.01);
U.S. Cl.
CPC ...
C09K 8/16 (2013.01); C09K 8/035 (2013.01); C09K 8/18 (2013.01); C10M 129/70 (2013.01); C11C 3/003 (2013.01); E21B 7/00 (2013.01); E21B 21/068 (2013.01); C09K 2208/34 (2013.01); C10M 2207/281 (2013.01); C10M 2207/283 (2013.01); C10M 2207/40 (2013.01); C10N 2230/06 (2013.01); C10N 2270/00 (2013.01);
Abstract
Some examples of producing water-based drilling fluids including ecofriendly lubricating additives are described. A raw material oil including fatty acids with a short chain alcohol is esterified in the presence of a catalyst to produce alkyl ester products and triglycerides. The alkyl ester products are washed and heated to remove any residual water or the short chain alcohol. A first quantity of the alkyl ester products is mixed with a second quantity of a water-based wellbore drilling fluid.