Invention Grant
- Patent Title: Method for modifying the water permeability of a subterranean formation
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Application No.: US18452258Application Date: 2023-08-18
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Publication No.: US11987744B2Publication Date: 2024-05-21
- Inventor: Cédrick Favero , Olivier Braun , Lionel Lauber
- Applicant: SNF Group
- Applicant Address: FR Andrezieux Boutheon
- Assignee: SNF GROUP
- Current Assignee: SNF GROUP
- Current Assignee Address: FR Andrezieux Boutheon
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Priority: FR 01021 2019.02.01
- The original application number of the division: US17422840
- Main IPC: C09K8/44
- IPC: C09K8/44 ; E21B43/16
Abstract:
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.
Public/Granted literature
- US20230392066A1 METHOD FOR MODIFYING THE WATER PERMEABILITY OF A SUBTERRANEAN FORMATION Public/Granted day:2023-12-07
Information query
