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1. (WO2015122889) TEMPERATURE-TRIGGERED VISCOSIFIER FOR TREATMENT OF A SUBTERRANEAN FORMATION

Pub. No.:    WO/2015/122889    International Application No.:    PCT/US2014/016114
Publication Date: Fri Aug 21 01:59:59 CEST 2015 International Filing Date: Thu Feb 13 00:59:59 CET 2014
IPC: C09K 8/035
E21B 43/22
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors: GAMAGE, Pubudu Hasanka
KULKARNI, Sandeep D.
Title: TEMPERATURE-TRIGGERED VISCOSIFIER FOR TREATMENT OF A SUBTERRANEAN FORMATION
Abstract:
Various embodiments disclosed related to methods, compositions, and systems for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a composition including a crosslinkable viscosifier polymer. The crosslinkable viscosifier polymer can include an ethylene repeating unit including a -C(O)NH2 group and an ethylene repeating unit including an -S(O)2OR1 group, wherein the repeating units are in block, alternate, or random configuration. At each occurrence R1 can be independently selected from the group consisting of -H and a counterion. The composition can also include at least one crosslinker. The method also includes placing the composition in a subterranean formation downhole.