- 专利标题： METHOD FOR MODIFYING THE WATER PERMEABILITY OF A SUBTERRANEAN FORMATION
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申请号： US18452258申请日： 2023-08-18
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公开(公告)号： US20230392066A1公开(公告)日： 2023-12-07
- 发明人: Cédrick FAVERO , Olivier BRAUN , Lionel LAUBER
- 申请人： SNF Group
- 申请人地址： FR Andrezieux Boutheon
- 专利权人： SNF Group
- 当前专利权人： SNF Group
- 当前专利权人地址： FR Andrezieux Boutheon
- 优先权： FR 01021 2019.02.01
- 分案原申请号： US17422840 2021.07.14
- 主分类号： C09K8/44
- IPC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.
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.
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