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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 7932215 B1

PDFFull Text
Date of Patent:
Apr. 26, 2011

Filed:

Mar. 12, 2009

Methods of treating a portion of a well with a polymer or polymer system capable of forming a gel that dissolves at a low and high ph

Applicants:

Ian D. Robb, Lawton, OK (US);

Mike A. Bajomo, London, GB;

Alexander Bismarck, Peterborough, GB;

Joachim Steinke, London, GB;

Inventors:

Ian D. Robb, Lawton, OK (US);

Mike A. Bajomo, London, GB;

Alexander Bismarck, Peterborough, GB;

Joachim Steinke, London, GB;

Assignee:

Halliburton Energy Services, Inc., Duncan, OK (US);

Attorneys:

Robert A. Kent

Booth Albanesi Schroeder LLC

Primary Examiner:

Timothy J Kugel

Assistant Examiner:

Aiqun Li

Int. Cl.
CPC ...
C09K 8/60 (2006.01); C09K 8/588 (2006.01); C23F 11/14 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

Methods for treating a portion of a well include the steps of: (a) forming a treatment gel comprising a polymer or a polymer system of a mixture of two or more polymers, wherein the polymer or the polymer system is capable of each of the following, when tested at at least one concentration in the range of 2-10 times C* in deionized water, at about 22° C., and at about 1 atmosphere pressure: (i) forming a polymer gel of the polymer and water at at least one pH in the range of 4-9, wherein a bulk form of the polymer gel has a G' greater than G″ at all frequencies in the range of 1 rad/sec-100 rad/sec; (ii) dissolving at at least one pH in the range of 2-4; and (iii) dissolving at at least one pH in the range of 9-12; (b) dispersing the treatment gel in a fluid to form a treatment fluid; (c) introducing the treatment gel in a treatment fluid into a portion of a well; and (d) after the step of introducing the treatment gel, adjusting the pH of the treatment gel to at least one pH in the range of 2-4 or 9-12.

Find Patent Forward Citations

Robb, Ian. (2011). Methods of treating a portion of a well with a polymer or polymer system capable of forming a gel that dissolves at a low and high ph (U.S. Patent No. 7932215). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7932215

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