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:
Jul. 15, 2003

Filed:

Feb. 19, 2002
Applicant:
Inventors:

Philip D. Nguyen, Duncan, OK (US);

Ronald J. Crook, Duncan, OK (US);

Johnny A. Barton, Marlow, OK (US);

David L. Brown, Temple, OK (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 2/000 ; C04B 2/400 ; E21B 3/3138 ; E21B 4/302 ;
U.S. Cl.
CPC ...
C04B 2/000 ; C04B 2/400 ; E21B 3/3138 ; E21B 4/302 ;
Abstract

Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an amount sufficient to form a slurry.


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