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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
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.
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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.
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3.发明公开公开(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
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.
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4.发明申请公开(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.
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