公开(公告)号：US20160075936A1

公开(公告)日：2016-03-17

申请号：US14850478

申请日：2015-09-10

Applicant: SHELL OIL COMPANY

Inventor： Leonardus Bartholomeus Maria WASSING ,  Esther Christianne Maria VERMOLEN ,  Mark Theodoor LOOIJER ,  Bartholomeus Marinus Josephus Maria SUIJKERBUIJK

IPC: C09K8/588 ,  E21B43/16

CPC classification number: C09K8/588 ,  E21B43/16

Abstract: A method of producing fluid from a formation containing hydrocarbons in which an aqueous polymer preflush fluid is injected into the formation followed by injection of an aqueous polymer displacement fluid, where the aqueous polymer preflush fluid has a total dissolved solids content that is greater than the total dissolved solids content of the aqueous polymer displacement fluid.

Abstract translation: 从包含烃的地层中生产流体的方法，其中将水性聚合物预冲洗流体注入地层，然后注入含水聚合物置换流体，其中水性聚合物预冲洗流体的总溶解固体含量大于总量 溶解固体含量的含水聚合物置换液。

公开(公告)号：US20150107840A1

公开(公告)日：2015-04-23

申请号：US14518469

申请日：2014-10-20

Applicant: SHELL OIL COMPANY

Inventor： Dirk Jacob LIGTHELM ,  Monica M. PINGO-ALAMADA ,  Esther Christianne Maria VERMOLEN ,  Julia Frances VAN WINDEN ,  Leonardus Bartholomeus Maria WASSING

IPC: E21B43/25 ,  E21B47/00

CPC classification number: C09K8/588 ,  E21B43/162

Abstract: The present invention is directed to a process for producing oil. The mass action ratio (MAR) of divalent cations to monovalent cations of water from an oil-bearing formation is determined, and an aqueous displacement fluid having a total dissolved solids content of from 200 ppm to 5,000 ppm and a MAR of divalent cations to monovalent cations of from 70% to 130% of the MAR of divalent cations to monovalent cations of the formation water is introduced into the formation. Oil is produced from the formation after introducing the aqueous displacement fluid into the formation.

Abstract translation: 本发明涉及一种生产油的方法。 确定二价阳离子与来自含油地层的水的一价阳离子的质量作用比（MAR），以及将总溶解固体含量为200ppm至5,000ppm和二价阳离子的MAR至单价的含水置换液 将二价阳离子的MAR的70％至130％的阳离子与地层水的一价阳离子的阳离子引入地层中。 在将含水置换流体引入地层之后，从地层产生油。