公开(公告)号：US20170158939A1

公开(公告)日：2017-06-08

申请号：US15438179

申请日：2017-02-21

Applicant: Schlumberger Technology Corporation

Inventor： Yiyan Chen ,  Lijun Lin ,  Philip F. Sullivan

IPC: C09K8/035 ,  C09K8/88 ,  B01F15/06 ,  C09K8/90 ,  B01F3/12 ,  B01F3/22 ,  C09K8/68 ,  C09K8/575

CPC classification number: C09K8/035 ,  B01F3/1214 ,  B01F3/2276 ,  B01F15/06 ,  B01F2003/1285 ,  B01F2015/062 ,  B01F2215/0081 ,  C09K8/5756 ,  C09K8/68 ,  C09K8/685 ,  C09K8/70 ,  C09K8/887 ,  C09K8/90

Abstract: This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.

公开(公告)号：US20160096988A1

公开(公告)日：2016-04-07

申请号：US14937617

申请日：2015-11-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lijun Lin ,  Quanxin Guo ,  Brent Busby ,  Philip F. Sullivan

IPC: C09K8/36 ,  E21B21/00

CPC classification number: C09K8/36 ,  C09K8/12 ,  C09K8/5083 ,  C09K8/512 ,  C09K2208/08 ,  C09K2208/30 ,  E21B21/003

Abstract: Pumpable process-fluid compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of controlling lost circulation in subterranean wells. Upon entering at least one lost circulation zone, the compositions crosslink, thereby forming a barrier that minimizes or stops fluid flow from the wellbore into the lost circulation zone.

公开(公告)号：US20130025863A1

公开(公告)日：2013-01-31

申请号：US13627904

申请日：2012-09-26

Applicant: Schlumberger Technology Corporation

Inventor： Lijun Lin ,  Quanxin Guo ,  Brent Busby ,  Philip F. Sullivan

IPC: C09K8/512 ,  E21B33/138

CPC classification number: C09K8/36 ,  C09K8/12 ,  C09K8/5083 ,  C09K8/512 ,  C09K2208/08 ,  C09K2208/30 ,  E21B21/003

Abstract: Pumpable process-fluid compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of controlling lost circulation in subterranean wells. Upon entering at least one lost circulation zone, the compositions crosslink, thereby forming a barrier that minimizes or stops fluid flow from the wellbore into the lost circulation zone.

Abstract translation: 可泵送的工艺流体组合物包含聚丙烯酰胺，非金属交联剂和pH调节材料。 这种组合物在控制地下井中的流失的情况下具有实用性。 在进入至少一个失水循环区域时，组合物交联，从而形成最小化或阻止流体从井眼流入损失循环区域的阻挡层。