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. 27, 2005
Filed:
Oct. 11, 2004
B. Raghava Reddy, Duncan, OK (US);
Dennis W. Gray, Comanche, OK (US);
Bryan K. Waugh, Comanche, OK (US);
Jan Pieter Vijn, Leiderdorp, NL;
B. Raghava Reddy, Duncan, OK (US);
Dennis W. Gray, Comanche, OK (US);
Bryan K. Waugh, Comanche, OK (US);
Jan Pieter Vijn, Leiderdorp, NL;
Halliburton Energy Services, Inc., Duncan, OK (US);
Abstract
A method of retarding the set time of a cement composition comprising providing a cement composition that comprises water and a cement, and retarding the set time of the cement composition by including a copolymer retarder in the cement composition, wherein the copolymer retarder comprises olefinically unsaturated non-acrylate sulfonate monomers and olefinically unsaturated carboxylic acid monomers. Methods of cementing in a subterranean formation also are provided.