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:
Aug. 30, 2016

Filed:

May. 22, 2014
Applicants:

Harold Dean Brannon, Magnolia, TX (US);

Brian N. Ward, The Woodlands, TX (US);

D. V. Satyanarayana Gupta, The Woodlands, TX (US);

Scott Gregory Nelson, Edmond, OK (US);

Inventors:

Harold Dean Brannon, Magnolia, TX (US);

Brian N. Ward, The Woodlands, TX (US);

D. V. Satyanarayana Gupta, The Woodlands, TX (US);

Scott Gregory Nelson, Edmond, OK (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01); C09K 8/68 (2006.01);
U.S. Cl.
CPC ...
E21B 43/267 (2013.01); C09K 8/68 (2013.01); C09K 2208/24 (2013.01); C09K 2208/26 (2013.01); C09K 2208/30 (2013.01);
Abstract

The method includes the introduction of a proppant-free stage and a proppant laden stage into the wellbore and/or subterranean formation. The method increases the effective fracture width and enhances fracture conductivity within the formation. Either the proppant-free stage or the proppant laden stage contains a breaker. At least one of the proppant-free stage or proppant laden stage contains a viscosifying agent to which the breaker has affinity. The viscosifying agent may be a superabsorbent, a viscosifying polymer (other than a superabsorbent) or a viscoelastic surfactant. The breaker has greater affinity for the viscosifying agent not present in the same stage as the breaker. Either the proppant-free stage or the proppant laden stage may be foamed.


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