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.
本发明公开的各种实施方案涉及包括增粘聚合物的提高石油采收率的方法、组合物和系统。在各种实施方案中,本发明提供了一种提高石油采收率的方法,该方法可包括获得或提供一种包括增粘聚合物的组合物。粘聚剂聚合物包括包括-C(O)NH2基团的
乙烯重复单元和包括-S(O)2OR1基团的
乙烯重复单元,其中重复单元为嵌段、交替或无规构型。在每次出现时,R1 可独立选自-H 和反离子组成的组。该方法可包括通过注入井筒将组合物置于井下的地下地层中。该方法还可包括通过生产井筒从井下的地下岩层中提取包含石油的材料。