EP 3918027 A1 20211208 - METHOD FOR MODIFYING THE WATER PERMEABILITY OF A SUBTERRANEAN FORMATION
Title (en)
METHOD FOR MODIFYING THE WATER PERMEABILITY OF A SUBTERRANEAN FORMATION
Title (de)
VERFAHREN ZUR MODIFIZIERUNG DER WASSERDURCHLÄSSIGKEIT EINER UNTERIRDISCHEN FORMATION
Title (fr)
PROCEDE DE MODIFICATION DE LA PERMEABILITE A L'EAU D'UNE FORMATION SOUTERRAINE
Publication
Application
Priority
- FR 1901019 A 20190201
- FR 2020050135 W 20200129
Abstract (en)
[origin: WO2020157430A1] The present invention relates to a method for modifying the water permeability of a subterranean formation which comprises oil, said method 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 linear (co)polymer E, - 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, comprising a linear (co)polymer E concentration, such that when released and in contact with water, the viscosity of the injection fluid is greater than the viscosity of the oil in the formation.
IPC 8 full level
C09K 8/588 (2006.01); C08F 16/00 (2006.01)
CPC (source: EP US)
C08F 220/56 (2013.01 - EP US); C08F 265/06 (2013.01 - EP); C09K 8/588 (2013.01 - EP US)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020157430 A1 20200806; AR 117967 A1 20210908; BR 112021014261 A2 20210928; CA 3127292 A1 20200806; CN 113939574 A 20220114; CN 113939574 B 20230825; CO 2021010140 A2 20210809; EA 202191836 A1 20211207; EP 3918027 A1 20211208; FR 3092328 A1 20200807; FR 3092328 B1 20210806; US 2022145166 A1 20220512
DOCDB simple family (application)
FR 2020050135 W 20200129; AR P200100261 A 20200131; BR 112021014261 A 20200129; CA 3127292 A 20200129; CN 202080011681 A 20200129; CO 2021010140 A 20210730; EA 202191836 A 20200129; EP 20707499 A 20200129; FR 1901019 A 20190201; US 202017422838 A 20200129