公开(公告)号：US20180022985A1

公开(公告)日：2018-01-25

申请号：US15536599

申请日：2015-12-07

Applicant: BASF SE ,  BASF Corporation

Inventor： Michael SIEMER ,  Jean-Pierre Berkan LINDNER ,  Shawn RIMASSA ,  Nikolas KAPRINIDIS

IPC: C09K8/60 ,  C09K8/035 ,  C09K8/78 ,  C09K8/588 ,  C09K8/62 ,  C09K8/70 ,  C08G73/06 ,  C09K8/52

CPC classification number: C09K8/608 ,  C08G73/0616 ,  C09K8/035 ,  C09K8/52 ,  C09K8/588 ,  C09K8/62 ,  C09K8/703 ,  C09K8/78 ,  C09K2208/12

Abstract: Method of inhibiting the swelling of clay in subterranean formations by introducing carrier fluid comprising at least one clay inhibitor into the formation, wherein at least one of the clay inhibitors is a cationic polymer comprising imidazolium groups having a high weight average