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:
Dec. 05, 2017

Filed:

Oct. 17, 2013
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Jim Weaver, Duncan, OK (US);

Michael McCabe, Duncan, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/22 (2006.01); C09K 8/035 (2006.01); C09K 8/40 (2006.01); C09K 8/42 (2006.01); C09K 8/52 (2006.01); C09K 8/64 (2006.01); C09K 8/68 (2006.01); C09K 8/72 (2006.01); C09K 8/82 (2006.01); C09K 8/88 (2006.01); C09K 8/90 (2006.01); E21B 43/04 (2006.01); C09K 8/44 (2006.01); C09K 8/62 (2006.01); C09K 8/74 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
C09K 8/035 (2013.01); C09K 8/40 (2013.01); C09K 8/42 (2013.01); C09K 8/44 (2013.01); C09K 8/52 (2013.01); C09K 8/62 (2013.01); C09K 8/64 (2013.01); C09K 8/68 (2013.01); C09K 8/685 (2013.01); C09K 8/725 (2013.01); C09K 8/74 (2013.01); C09K 8/82 (2013.01); C09K 8/887 (2013.01); C09K 8/90 (2013.01); E21B 43/04 (2013.01); E21B 43/16 (2013.01); C09K 2208/24 (2013.01); C09K 2208/26 (2013.01);
Abstract

Dual-purpose additives that may be used as viscosifying agents and surface active agents in fluids, subterranean treatments and oilfield operations are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a polymeric dual-purpose additive comprising a base polymer comprising a plurality of monomer units, and one or more hydrophobic groups bonded to at least one of the monomer units; introducing the treatment fluid into at least a portion of a subterranean formation; and depolymerizing at least a portion of the dual-purpose additive to form one or more surface active fragments, each of the surface active fragments comprising one or more of the hydrophobic groups bonded to one or more of the monomer units.


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