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.:

US 6762156 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 13, 2004

Filed:

Jan. 31, 2002
Applicant:
Inventors:

James F. Heathman, Katy, TX (US);

Sears T. Dealy, Comanche, OK (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 7/02 ; E21B 3/313 ;
U.S. Cl.
CPC ...
C09K 7/02 ; E21B 3/313 ;
Abstract

The present invention provides improved reactive cement compositions for sealing hydrocarbon containing subterranean zones and methods of using the cement compositions. The sealing compositions are basically comprised of water, a hydraulic cement, an organophillic clay, a hydratable gelling agent and a water soluble alkaline source in effective amounts.


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