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. 10, 1989
Filed:
Aug. 17, 1987
Applicant:
Inventors:
Robert K Gabel, Houston, TX (US);
Robert E Law, Houston, TX (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166312 ; 166291 ; 252-8551 ;
Abstract
A composition for use in agglomerating and removing solid contaminants in well fluids is disclosed. The composition comprises a carrier and the amide/glyceride reaction product obtained by heating a secondary amine in the presence of a fat or oil. The composition is used in processes to agglomerate the solids in contaminated well fluid and in which the agent is diluted and used as a preflush prior to replacing drilling mud with fresh well fluid.