公开(公告)号：US20210253935A1

公开(公告)日：2021-08-19

申请号：US17246746

申请日：2021-05-03

Applicant: ENI S.P.A.

Inventor： Lucilla DEL GAUDIO ,  Davide MOSCATELLI ,  Paola ALBONICO

IPC: C09K8/512 ,  C08F220/28 ,  C08F220/06 ,  C09K8/58 ,  E21B33/138

Abstract: The present invention relates to a composition for inhibiting water permeation in an extraction well of a hydrocarbon oil from an underground reservoir which comprises injecting into said reservoir at least one polymerizable composition comprising: at least one hydrophilic monomer, at least one hydrophilic initiator of radical polymerization with thermal activation (hydrophilic initiator), at least one lipophilic initiator of radical polymerization with thermal activation (lipophilic initiator). The present invention also relates to the polymerizable compositions that can be used in said method.

公开(公告)号：US20240026210A1

公开(公告)日：2024-01-25

申请号：US18373322

申请日：2023-09-27

Applicant: ENI S.P.A.

Inventor： Davide MOSCATELLI ,  Lucilla DEL GAUDIO ,  Paola ALBONICO ,  Alessandra BELLONI ,  Alberto CESANA

IPC: C09K8/502 ,  C09K8/516 ,  C09K8/588 ,  E21B43/20

CPC classification number: C09K8/502 ,  C09K8/516 ,  C09K8/588 ,  E21B43/20

Abstract: A treatment fluid may be suitable for a hydrocarbon fluid extraction well. Such a treatment fluid may include a water-in-oil emulsion. The water-in-oil emulsion may include: an oily continuous phase; and an aqueous discontinuous phase comprising water and a plurality of particles comprising a hydrogel comprising a cationic polymer. The cationic polymer may include, in polymerized form, a monomer with one or more cationic groups. The cationic group may be a —N+—R1R2R3 group, wherein R1, R2, and R3, are independently H or a C1 to C4 alkyl group.

公开(公告)号：US20200277524A1

公开(公告)日：2020-09-03

申请号：US16326623

申请日：2017-08-22

Applicant: ENI S.P.A.

Inventor： Lucilla DEL GAUDIO ,  Davide MOSCATELLI ,  Paola ALBONICO

IPC: C09K8/512 ,  C09K8/58 ,  C08F220/06 ,  C08F220/28

Abstract: The present invention relates to a method for inhibiting water permeation in an extraction well of a hydrocarbon oil from an underground reservoir which comprises injecting into said reservoir at least one polymerizable composition comprising: at least one hydrophilic monomer, —at least one hydrophilic initiator of radical polymerization with thermal activation (hydrophilic initiator), at least one lipophilic initiator of radical polymerization with thermal activation (lipophilic initiator). The present invention also relates to the polymerizable compositions that can be used in said method.

公开(公告)号：US20220169910A1

公开(公告)日：2022-06-02

申请号：US17440985

申请日：2020-03-19

Applicant: ENI S.P.A.

Inventor： Davide MOSCATELLI ,  Lucilla DEL GAUDIO ,  Paola ALBONICO ,  Alessandra BELLONI ,  Alberto CESANA

IPC: C09K8/502 ,  C09K8/516 ,  C09K8/588 ,  E21B43/20

Abstract: A method for inhibiting water permeation in an extraction well of a hydrocarbon fluid from an underground reservoir containing: supplying a water-in-oil emulsion an oily continuous phase and an aqueous discontinuous phase containing a plurality of particles of at least one hydrogel containing a cationic polymer; and positioning the water-in-oil emulsion in contact with the underground reservoir. The present invention also concerns a treatment fluid for hydrocarbon fluid extraction wells containing the aforementioned water-in-oil emulsion and the related preparation process.

公开(公告)号：US20180134887A1

公开(公告)日：2018-05-17

申请号：US15565813

申请日：2016-04-13

Applicant: ENI S.p.A.

Inventor： Lucilla DEL GAUDIO ,  Roberto LOREFICE ,  Massimo Silvio MORBIDELLI ,  Davide MOSCATELLI

IPC: C08L33/02 ,  C09K8/502 ,  C08F220/06 ,  E21B43/16

CPC classification number: C08L33/02 ,  C08F220/06 ,  C08F220/56 ,  C08F2220/286 ,  C08F2800/20 ,  C08L33/06 ,  C08L33/26 ,  C08L2201/52 ,  C08L2201/56 ,  C09K8/502 ,  C09K2208/10 ,  E21B43/00 ,  E21B43/16

Abstract: A method for inhibiting the permeation of water in an extraction well of a hydrocarbon fluid from an underground reservoir is described. The method includes the injection of at least one treatment fluid into the underground reservoir. The treatment fluid contains at least one emulsion or dispersion in an organic solvent of at least one copolymer of a first monomer of an acrylic monomer or a methacrylic monomer, and a second monomer having at least one ethylene unsaturation and at least one polyoxyethylene chain. The emulsion or dispersion of the copolymer used in the method is also described.