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公开(公告)号：US12018211B2
公开(公告)日：2024-06-25
申请号：US17919494
申请日：2020-06-09
Applicant: RHODIA OPERATIONS
Inventor： Stanley Gunawan , Zhihua Zhang , Shaopeng Zhang , Igor Pimkov , Zhenxing Cheng , Qi Qu
Abstract: Water-in-oil emulsions are provided that include an alkyl propylene diamine and an ethoxylated alcohol as the inverting surfactant, which is present in an amount less than 5 percent by weight of the water-in-oil emulsion.
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2.发明申请公开(公告)号：US20220275267A1
公开(公告)日：2022-09-01
申请号：US17629039
申请日：2019-07-23
Applicant: RHODIA OPERATIONS
Inventor： Chee Fei Chin , Zhihua Zhang , Zhenxing Cheng , Ahmed Rabie , Hoang Van Le
IPC: C09K8/508 , C09K8/504 , C08F120/56
Abstract: Provided are methods for modifying the permeability of subterranean formations for the purposes of selectively reducing excessive production of water and aqueous fluids in oil and gas wells, wherein the methods utilize an emulsion containing a copolymer, which is typically prepared in an aqueous salt media.
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公开(公告)号：US20230357629A1
公开(公告)日：2023-11-09
申请号：US17919494
申请日：2020-06-09
Applicant: RHODIA OPERATIONS
Inventor： Stanley Gunawan , Zhihua Zhang , Shaopeng Zhang , Igor Pimkov , Zhenxing Cheng , Qi Qu
Abstract: Water-in-oil emulsions are provided that include an alkyl propylene diamine and an ethoxylated alcohol as the inverting surfactant, which is present in an amount less than 5 percent by weight of the water-in-oil emulsion.
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公开(公告)号：US20210340436A1
公开(公告)日：2021-11-04
申请号：US17284393
申请日：2018-10-11
Applicant: RHODIA OPERATIONS
Inventor： Zhenxing Cheng , Zhihua Zhang , Man Chen , Chee Fei Chin , David James Wilson
Abstract: Disclosed is a polymer dispersion prepared by controlled radical polymerization and a use of the polymer dispersion as a friction reducer in oil field processes.
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