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:
May. 14, 1985
Filed:
Feb. 07, 1983
Applicant:
Inventors:
Weldon B Nance, Lafayette, LA (US);
Jack M Calkins, Houston, TX (US);
Assignee:
Witco Chemical Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 / ; 252 45 ; 252 493 ;
Abstract
A wellbore fluid having improved lubricating properties for drilling in formations in the earth comprising water and a lubricant composition containing a mixture of a chlorinated component and a sulfurized component in proportions to produce a lubricant composition containing 15 to 30 weight percent chlorine and 2 to 10 weight percent sulfur.