公开(公告)号：US20230392066A1

公开(公告)日：2023-12-07

申请号：US18452258

申请日：2023-08-18

申请人： SNF Group

发明人： Cédrick FAVERO ,  Olivier BRAUN ,  Lionel LAUBER

IPC分类号： C09K8/44

CPC分类号： C09K8/44

摘要： The invention relates to a method for modifying the water permeability of a subterranean formation, comprising at least the following steps:



Preparing an injection fluid from a dispersion of a hydrophilic phase in a lipophilic phase, with water or brine, the dispersion comprising:

a hydrophilic phase comprising at least one cross-linked (co)polymer PR,
a lipophilic phase,
at least one interface polymer composed of at least one monomer of formula (I):












Injecting the injection fluid into the subterranean formation,
said cross-linked (co)polymer PR forming a hydrogel in the presence of water.