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:
Jan. 22, 2008
Filed:
Apr. 19, 2001
Applicants:
Michele Scott Albrecht, Houston, TX (US);
Kenneth Michael Cowan, Sugar Land, TX (US);
Robert Irving Mcneil, Iii, Cypress, TX (US);
Eric Van Oort, Houston, TX (US);
Ronald Lee Rock, Sr., Richmond, TX (US);
Inventors:
Michele Scott Albrecht, Houston, TX (US);
Kenneth Michael Cowan, Sugar Land, TX (US);
Robert Irving McNeil, III, Cypress, TX (US);
Eric Van Oort, Houston, TX (US);
Ronald Lee Rock, Sr., Richmond, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/20 (2006.01); C09K 8/08 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The drilling mud with a lowered coefficient of friction having a silicate-based mud and a lubricant selected from the group consisting of: glycosides, alkylpolyalkoxyalcohols, alcohol ester polymers, amine phosphates, starch and combinations thereof.