申请人:Halliburton Energy Services, Inc.
公开号:US10703962B2
公开(公告)日:2020-07-07
Methods, compositions, and systems that use hydrogels of graft polymers for diversion of acidic treatment fluids in subterranean formations. A method for acid diversion may comprise: applying a first acidizing treatment to a first treatment zone of a subterranean formation; introducing a hydrogel to the first treatment zone, wherein the hydrogel comprises a graft polymer that is crosslinked; and applying a second acidizing treatment to the subterranean formation, wherein the hydrogel diverts the second acidizing treatment to a second treatment zone.
使用接枝聚合物水凝胶对地下地层中的酸性处理液进行分流的方法、组合物和系统。酸分流方法可包括:对地下地层的第一处理区进行第一酸化处理;将水凝胶引入第一处理区,其中水凝胶包括交联的接枝聚合物;对地下地层进行第二酸化处理,其中水凝胶将第二酸化处理分流到第二处理区。