公开(公告)号：US20160376497A1

公开(公告)日：2016-12-29

申请号：US14748405

申请日：2015-06-24

Applicant: Schlumberger Technology Corporation

Inventor： Lindsay Lites ,  Bruce Alexander MacKay ,  Andrey Mirakyan ,  Blake McMahon

IPC: C09K8/90 ,  E21B43/267 ,  E21B43/26 ,  C09K8/68 ,  E21B43/16

Abstract: Methods of treating a subterranean formation penetrated by a wellbore include providing environmental water, admixing a viscosifying amount of a polymer and at least one divalent cation with the environmental water to form an admixture, and pumping the admixture through the wellbore at a rate and pressure sufficient to treat the subterranean formation. The viscosity of the admixture increases after the at least one divalent cation, the viscosifying amount of polymer and the environmental water are admixed. Such viscosity increase may be at least about 5% over at least a 10 minute period after the admixture is prepared. The divalent cation(s) may be selected from the group consisting of barium, calcium, copper(II), iron(II), magnesium, manganese(II), strontium, tin(II), zinc, and mixtures thereof. Further, the divalent cation(s) may be provided in the form of a salt with one or more anions selected from acetate, bicarbonate, nitrate, chloride, bromide, iodide, sulfate ion, and mixtures thereof.

Abstract translation: 处理由井筒渗透的地层的方法包括提供环境水，将增稠量的聚合物和至少一种二价阳离子与环境水混合以形成混合物，并以足够的速率和压力泵送混合物通过井筒 治疗地层。 混合物的粘度在至少一种二价阳离子之后增加，聚合物和环境水的增粘量混合。 这种粘度增加可以在制备混合物后至少10分钟内至少约5％。 二价阳离子可以选自钡，钙，铜（II），铁（II），镁，锰（II），锶，锡（II），锌及其混合物。 此外，二价阳离子可以以一种或多种选自乙酸盐，碳酸氢盐，硝酸盐，氯化物，溴化物，碘化物，硫酸根离子及其混合物的阴离子的形式提供。

公开(公告)号：US10815765B2

公开(公告)日：2020-10-27

申请号：US14748405

申请日：2015-06-24

Applicant: Schlumberger Technology Corporation

Inventor： Lindsay Lites ,  Bruce Alexander MacKay ,  Andrey Mirakyan ,  Blake McMahon

IPC: E21B43/267 ,  C09K8/68 ,  E21B43/16 ,  E21B43/26 ,  C09K8/88

Abstract: Methods of treating a subterranean formation penetrated by a wellbore include providing environmental water, admixing a viscosifying amount of a polymer and at least one divalent cation with the environmental water to form an admixture, and pumping the admixture through the wellbore at a rate and pressure sufficient to treat the subterranean formation. The viscosity of the admixture increases after the at least one divalent cation, the viscosifying amount of polymer and the environmental water are admixed. Such viscosity increase may be at least about 5% over at least a 10 minute period after the admixture is prepared. The divalent cation(s) may be selected from the group consisting of barium, calcium, copper(II), iron(II), magnesium, manganese(II), strontium, tin(II), zinc, and mixtures thereof. Further, the divalent cation(s) may be provided in the form of a salt with one or more anions selected from acetate, bicarbonate, nitrate, chloride, bromide, iodide, sulfate ion, and mixtures thereof.