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公开(公告)号：US10829378B1
公开(公告)日：2020-11-10
申请号：US16751424
申请日：2020-01-24
申请人： China University of Petroleum (East China) , Shengli Oilfield Branch, China Petroleum & Chemical Co., Ltd , Northwest Oilfield Branch, China Petroleum & Chemical Co., Ltd , China University of Geosciences (Beijing)
发明人： Caili Dai , Guang Zhao , Yahui Lv , Zenglin Wang , Long He , Liang Li , Qing You , Chenglin Gu
IPC分类号： C01B32/21 , C08F20/56 , C01B32/205 , C08K3/04
摘要： A modified nano graphite, a polymer composite material of the modified nano graphite, and use of the polymer composite material in a high temperature and high salinity oil reservoir.
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公开(公告)号：US10759987B1
公开(公告)日：2020-09-01
申请号：US16751630
申请日：2020-01-24
申请人： China University of Petroleum (East China) , Northwest Oilfield Branch, China Petroleum & Chemical Co., Ltd , China University of Geosciences (Beijing)
发明人： Guang Zhao , Caili Dai , Guangjie Hu , Yahui Lv , Qing You , Jianhai Wang , Ning Sun , Chenglin Gu
摘要： A composite temperature resistance gel plugging agent, a preparation method thereof and Fuse thereof in profile control and water plugging of ultra-deep oil reservoirs.
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公开(公告)号：US10745281B1
公开(公告)日：2020-08-18
申请号：US16799255
申请日：2020-02-24
申请人： China University of Petroleum (East China) , China University of Geosciences (Beijing) , Northwest Oilfield Branch, China Petroleum & Chemical Co., Ltd
发明人： Guang Zhao , Caili Dai , Yahui Lv , Jiawei Liu , Sen Wang , Ning Sun , Qing You , Guangjie Hu , Long He , Liang Li
IPC分类号： C01B32/225 , C09K8/42 , C01B32/23
摘要： The present disclosure relates to the field of oilfield chemistry, in particular to a composition for multi-component composite intercalation, a method of preparing a graphite system and a method of profile control and water shutoff.
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公开(公告)号：US10119065B2
公开(公告)日：2018-11-06
申请号：US15668900
申请日：2017-08-04
发明人： Qing You , Caili Dai , Yan Zhang , Mingwei Zhao , Yining Wu , Guang Zhao , Yongpeng Sun , Huan Wang , Yifei Liu , Jichao Fang
IPC分类号： C09K8/68 , C07D207/325 , C09K8/86
摘要： The present invention relates to the field of oilfield chemistry, and discloses a composition for fracturing and displacement and a method for fracturing and displacement of a tight oil reservoir. The composition contains a pyrrolic compound represented by formula (1) and a laurate; in the formula (1), M− is halide ion, R1 is C1-C5 linear or branched alkyl, and R2 is C15-C20 linear or branched alkyl. The composition for fracturing and displacement provided in the present invention has functions of fracturing, solid carrying, imbibition, drainage and oil displacement, so as to maximize the recovery efficiency of tight oil, and attain economic and social benefits by implementing multiple functions with a single composition, saving resources, and reducing cost.
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公开(公告)号：US10081604B1
公开(公告)日：2018-09-25
申请号：US15716207
申请日：2017-09-26
IPC分类号： E21B33/13 , E21B43/22 , C07D233/14 , C07D233/20 , C09K8/594 , E21B43/16 , G01N21/35 , G01R33/46
CPC分类号： C07D233/14 , C07D233/20 , C09K8/506 , C09K8/594 , E21B43/164 , G01N2021/3595 , G01R33/46
摘要： An imidazoline compound, a mobility control system, a plugging agent for gas channelling, and a method for carbon dioxide flooding. The structure of the imidazoline compound is represented by formula (1), in which R is pentadecyl, heptadecenyl, or heptadecyl. A mobility control system that contains the imidazoline compound can interact with carbon dioxide to form a plugging agent for gas channelling, and thereby attains a plugging effect for carbon dioxide channelling in a carbon dioxide flooding process.
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公开(公告)号：US10584276B2
公开(公告)日：2020-03-10
申请号：US16392315
申请日：2019-04-23
申请人： CHINA UNIVERSITY OF PETROLEUM (EAST CHINA) , CHINA UNIVERSITY OF GEOSCIENCES (BEIJING) , SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE LTD., PETRO CHINA
发明人： Caili Dai , Mingwei Gao , Mingwei Zhao , Qing You , Guang Zhao , Yining Wu , Yongpeng Sun , Lin Li , Yifei Liu , He Liu , Xin Wang , Baoshan Guan
摘要： A CO2-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO2, wherein CO2 is liquid and/or supercritical CO2. The CO2-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO2-sensitive fracturing and displacement fluid exerts the “one-agent multi-purpose” function of sand carrying, CO2 energization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.
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公开(公告)号：US10550318B1
公开(公告)日：2020-02-04
申请号：US16396010
申请日：2019-04-26
申请人： China University of Petroleum (East China) , Oil and Gas Technology Research Institute, PetroChina Changqing Oilfield Company , China University of Geosciences (Beijing) , Northwest Oilfield Branch Engineering Technology Research Institute, Sinopec Group
发明人： Caili Dai , Guang Zhao , Haien Yang , Ping Yi , Sen Wang , Qing You , Long He , Mingwei Zhao , Yining Wu
摘要： Provided a skid-mounted dispersed particle gel production device, dispersed particle gel and a preparation method and use thereof. The device sequentially comprises, in a delivery direction of a material flow, a jet blending system, a bulk gel chemical crosslinking reaction system, a shearing and grinding system, a storage system. and an intelligent regulation system Rapid crosslinking reaction of bulk gel in a medium/high-temperature oil reservoir and large-scale preparation of multiscale dispersed particle gel can be realised, and the device is applied to continuous production in a complex environment such as a tidal flat, a hill and an offshore work platform.
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公开(公告)号：US10189790B1
公开(公告)日：2019-01-29
申请号：US16029516
申请日：2018-07-06
IPC分类号： C09K8/42 , E21B33/13 , C07D233/14 , C09K8/594 , C07D233/20 , G01R33/46 , G01N21/35 , E21B43/16
摘要： An imidazoline compound, a mobility control system, a plugging agent for gas channeling, and a method for carbon dioxide flooding. The structure of the imidazoline compound is represented by formula (1), in which R is pentadecyl, heptadecenyl, or heptadecyl. A mobility control system that contains the imidazoline compound can interact with carbon dioxide to form a plugging agent for gas channeling, and thereby attains a plugging effect for carbon dioxide channeling in a carbon dioxide flooding process.
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公开(公告)号：US11247909B1
公开(公告)日：2022-02-15
申请号：US17237772
申请日：2021-04-22
发明人： Guang Zhao , Caili Dai , Lihao Liang , Dongfang Lyu , Qing You , Yifei Liu , Ning Yang , Ning Sun
IPC分类号： C01B32/372 , C01B32/342 , C09K8/58 , B82Y40/00
摘要： The present disclosure discloses a multi-grafting site carbon nanomaterial comprising a structural unit represented by Formula (1), hydroxyl groups and a structural unit represented by Formula (2); wherein R is one or more selected from the group consisting of tolyl, diphenylmethyl, isophorone group and dicyclohexylmethyl;
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公开(公告)号：US10982137B1
公开(公告)日：2021-04-20
申请号：US16899827
申请日：2020-06-12
申请人： China University of Petroleum (East China) , The Research Institute of Petroleum Exploration and Development (RIPED) of the Petro China Company , China University of Geosciences (Beijing)
发明人： Guang Zhao , Caili Dai , Xu Jin , Ning Yang , Qing You , Mingwei Zhao
IPC分类号： C08F220/56 , C09K11/06 , C08J3/075
摘要： The present disclosure discloses a fluorescent dispersed particle gel, a fluorescent gel, a fluorescent modified polyacrylamide composite, and a preparation method and use thereof.
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