Abstract: Various embodiments disclosed relate to methods, compositions, and systems for enhanced oil recovery including a viscosifier polymer. In various embodiments, the present invention provides a method of enhanced oil recovery that can include obtaining or providing a composition that includes a viscosifier polymer. The viscosifier polymer includes an ethylene repeating unit including a —C(O)NH2 group and an ethylene repeating unit including an —S(O)2OR1 group, where 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 method can include placing the composition in a subterranean formation downhole via an injection wellbore. The method can also include extracting material comprising petroleum from the subterranean formation downhole via a production wellbore.

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.

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.

Abstract: Various embodiments disclosed related to methods, compositions, and systems for treating a subterranean formation including a viscosifier polymer. In various embodiments, the present invention provides a method of treating a subterranean formation that can include obtaining or providing a composition including a viscosifier polymer. The viscosifier polymer includes 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 is independently selected from the group consisting of —H and a counterion. The method can also include placing the composition in a subterranean formation downhole.

Abstract: Various embodiments disclosed relate to methods, compositions, and systems for enhanced oil recovery including a viscosifier polymer. In various embodiments, the present invention provides a method of enhanced oil recovery that can include obtaining or providing a composition that includes a viscosifier polymer. The viscosifier polymer includes an ethylene repeating unit including a —C(O)NH2 group and an ethylene repeating unit including an —S(O)2OR1 group, where 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 method can include placing the composition in a subterranean formation downhole via an injection wellbore. The method can also include extracting material comprising petroleum from the subterranean formation downhole via a production wellbore.

Abstract: A method of servicing a wellbore in a subterranean formation comprising preparing an invert emulsion comprising an aqueous fluid, an oleaginous fluid, and an emulsifier composition (EC), wherein the emulsifier composition comprises an emulsifier, a diluent, and a thinner, wherein the thinner comprises an alcohol, a fatty acid amide, or combinations thereof; and placing the invert emulsion in the wellbore. A method of servicing a wellbore in a subterranean formation comprising flowing a wellbore serving fluid comprising an emulsifier composition (EC) through a portion of a subterranean formation, wherein the EC comprises an emulsifier, a diluent and a thinner and wherein the thinner comprises 2-methyl-1-propanol, 2-methyl-2-butanol, a fatty acid amide, or combinations thereof; contacting the EC with oil in situ within the formation to form an emulsion; and reducing the water-oil interfacial tension and altering the wettability to provide enhanced oil recovery from the formation.

Abstract: A method of servicing a wellbore in a subterranean formation comprising preparing an invert emulsion comprising an aqueous fluid, an oleaginous fluid, and an emulsifier composition (EC), wherein the emulsifier composition comprises an emulsifier, a diluent, and a thinner, wherein the thinner comprises an alcohol, a fatty acid amide, or combinations thereof; and placing the invert emulsion in the wellbore. A method of servicing a wellbore in a subterranean formation comprising flowing a wellbore serving fluid comprising an emulsifier composition (EC) through a portion of a subterranean formation, wherein the EC comprises an emulsifier, a diluent and a thinner and wherein the thinner comprises 2-methyl-1-propanol, 2-methyl-2-butanol, a fatty acid amide, or combinations thereof; contacting the EC with oil in situ within the formation to form an emulsion; and reducing the water-oil interfacial tension and altering the wettability to provide enhanced oil recovery from the formation.