VISCOSIFIER POLYMER FOR TREATMENT OF A SUBTERRANEAN FORMATION

摘要

Various embodiments disclosed relate to a viscosifier polymer for treatment of a subterranean formation, and methods and systems including the same. 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 viscosifier polymer. The method can also include placing the composition in a subterranean formation.

主权项

1. A method of treating a subterranean formation, the method comprising:
placing in the subterranean formation a composition comprising a viscosifier polymer comprising
an ethylene repeating unit comprising an —NRa—C(O)—Rb group, wherein at each occurrence Ra and Rb are each independently selected from —H and substituted or unsubstituted (C1-C20)hydrocarbyl or Ra and Rb together form a substituted or unsubstituted (C2-C20)hydrocarbylene,an ethylene repeating unit comprising an —S(O)2OR1 group wherein at each occurrence R1 is independently selected from the group consisting of —H and a counterion,an ethylene repeating unit at each occurrence independently linked to an ethylene repeating unit in the same viscosifier polymer molecule or in another molecule of the viscosifier polymer via a —C(O)—NH-(substituted or unsubstituted (C1-C20)hydrocarbylene)-NH—C(O)— group, andan ethylene repeating unit bonded to an —R2—O—R2—C(—R2—OR3)3 group, wherein at each occurrence R2 is independently substituted or unsubstituted (C1-C10)hydrocarbylene and at each occurrence R3 is independently selected from the group consisting of —H and -(substituted or unsubstituted (C1-C10)hydrocarbylene)-M wherein at each occurrence M is independently an ethylene repeating unit of the same viscosifier polymer molecule or an ethylene repeating unit of another molecule of the viscosifier polymer,wherein the repeating units are in block, alternate, or random configuration.