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.

Date of Patent:
Jan. 11, 2000

Filed:

Apr. 14, 1998
Applicant:
Inventors:

Jiten Chatterji, Duncan, OK (US);

David D Onan, Duncan, OK (US);

Roger S Cromwell, Walters, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E02D / ;
U.S. Cl.
CPC ...
166295 ; 166300 ; 405264 ; 523130 ;
Abstract

The present invention relates to improved methods and compositions for sealing subterranean zones penetrated by well bores to reduce their permeabilities and increase their compressive strengths. The methods basically comprise the steps of introducing an aqueous sealing composition into a subterranean zone comprising a polymerizable monomer, a polymerization initiator, a hardenable epoxide containing liquid and a hardening agent, placing the sealing composition by way of the well bore into the subterranean zone and allowing the sealing composition to polymerize and harden whereby the well bore is sealed.


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