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公开(公告)号：US11719081B2
公开(公告)日：2023-08-08
申请号：US17596156
申请日：2020-04-30
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Teng Lu , Zhaomin Li , Binfei Li , Songyan Li
CPC classification number: E21B43/24 , E21B43/166
Abstract: Disclosed is a method for performing integral plugging control on water invasion and steam channeling of an edge-bottom water heavy oil reservoir. The method for performing integral plugging control on water invasion and steam channeling of an edge-bottom water heavy oil reservoir comprises the following steps: (1) selecting an oil reservoir; (2) arranging a huff-puff well; (3) performing steam huff-puff development; and (4) performing integral plugging control. An integral plugging control technology is used for the method, a high-strength nitrogen foam system is injected by means of well rows at different positions in the oil reservoir, and effective plugging walls are formed at different positions from the edge-bottom water to reduce water invasion and steam channeling.
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公开(公告)号：US11156069B2
公开(公告)日：2021-10-26
申请号：US16745061
申请日：2020-01-16
Applicant: China University of Petroleum (East China)
Inventor： Zhaomin Li , Zhengxiao Xu , Teng Lu , Yanling Zhao , Yajie Xu , Fanyu Meng , Faqiang Dang
Abstract: The invention relates to the recovery of heavy oil reservoirs, and more particularly to a supported catalyst-assisted microwave method for exploiting a heavy oil reservoir. The method includes: (1) injecting a slug of a supported catalyst fluid into the heavy oil reservoir; (2) placing a microwave generator in the heavy oil reservoir to perform volumetric heating on an oil layer containing the supported catalyst fluid; and (3) turning off the microwave generator and injecting water into the heavy oil reservoir for subsequent displacement, where a water injection rate is 3 m/d or less.
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Patent Agency Ranking
3.发明授权公开(公告)号：US10767106B2
公开(公告)日：2020-09-08
申请号：US16813581
申请日：2020-03-09
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Zhaomin Li , Zhengxiao Xu , Teng Lu , Mingxuan Wu , Xinru Zhao , Aiwen Jing
Abstract: Disclosed belongs to the technical field of heavy oil extraction, and specifically relates to a viscosity reduction system for microwave extraction of heavy oil and a preparation method thereof. The viscosity reduction system is a magnetic graphene oxide. The viscosity reduction system added to heavy oil has a significant viscosity reduction effect after microwave treatment. The viscosity reduction system exhibits lipophilicity and can be adsorbed on oil droplets, so that the thermal effect of microwaves assisted by the viscosity reduction system mainly acts on a reservoir, which reduces heat loss during heat transfer. At the same time, the viscosity reduction system is magnetic, which helps directional regulation and separation under the action of a magnetic field.
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公开(公告)号：US11078768B2
公开(公告)日：2021-08-03
申请号：US16605068
申请日：2019-04-04
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Teng Lu , Zhaomin Li , Jianping Yang , Hongyuan Wang , Shizhong Wang , Yao Wei , Zhuangzhuang Wang , Dawei Hou , Yajie Xu
Abstract: Disclosed belongs to the technical field of oil and gas field development engineering, and particularly relates to a super heavy oil development method for strengthening an SAGD steam chamber to break through a low physical property reservoir. The super heavy oil development method for strengthening the SAGD steam chamber to break through the low physical property reservoir includes the following steps: (1) selection of a developed oil reservoir; (2) well distribution; (3) steam chamber forming; (4) steam chamber expansion; (5) steam chamber strengthening. The method may enhance the ability of the steam chamber to break through the low physical property reservoir, enlarge the development height of the steam chamber, and further improve the SAGD development effect of super heavy oil.
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5.发明授权公开(公告)号：US09777210B2
公开(公告)日：2017-10-03
申请号：US15519540
申请日：2016-08-04
Applicant: China University of Petroleum
Inventor： Zhaomin Li , Qichao Lv , Binfei Li , Binglin Li , Songyan Li , Teng Lu , Qian Sun , Yajie Xu
CPC classification number: C09K8/594 , C09K8/536 , C09K8/58 , C09K8/68 , C09K8/703 , C09K8/74 , C09K8/94
Abstract: A novel inorganic fine particle reinforced foam system for an oil-gas field and preparation method thereof. The reinforced foam system comprises a gas phase and a liquid phase; the gas phase is nitrogen, carbon dioxide or the air; the liquid phase is prepared from, by mass: 0.2-0.8 wt % of a foaming agent, 0.5-2.0 wt % of novel inorganic fine particles and balance of water; the novel inorganic fine particles are fine particulate matter with diameters being smaller than or equal to 2.5 microns captured and screened from the atmosphere.
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公开(公告)号：US11208872B2
公开(公告)日：2021-12-28
申请号：US16331929
申请日：2018-08-03
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Chao Zhang , Zhaomin Li , Jianlin Liu , Dongya Zhao , Teng Lu , Shouya Wu , Longjiang Guo
Abstract: A CCUS system for exploiting a thickened oil reservoir based on an optimal flue gas CO2 enrichment ratio. The CCUS system comprises a flue gas CO2 enrichment unit, a flue gas injection unit, a thickened oil thermal production well group unit and a produced gas recovery unit; the fuel gas CO2 enrichment unit comprises an air separating enrichment unit and a boiler injection gas premixed tank; the air separating enrichment unit comprises an air separating primary device used for separating air into oxygen and nitrogen preliminarily, and an air separating secondary device used for further enriching a part of the oxygen which is subjected to the preliminary separation; and the boiler injection gas premixed tank is used for mixing the preliminarily separated nitrogen, the preliminarily separated part of the oxygen and/or the further enriched oxygen.
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公开(公告)号：US11187065B2
公开(公告)日：2021-11-30
申请号：US16472827
申请日：2019-01-15
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Teng Lu , Zhaomin Li , Jian Li , Dingyong Zhang , Dawei Hou , Binfei Li
IPC: E21B43/16
Abstract: A composite nitrogen huff and puff method for a bounded fault block reservoir comprises: selecting the reservoir to be developed, wherein the reservoir to which the development method is applicable is roughly screened according to the following conditions: the reservoir is a bounded fault block reservoir, buried depth 0.5, reservoir thickness>10 m, horizontal permeability>100 mD, vertical permeability to horizontal permeability ratio>0.35, reservoir porosity>0.20, and stratigraphic dip>8°; and sequentially performing the following huff and puff phases: a nitrogen huff and puff phase, a nitrogen and water composite huff and puff phase, a nitrogen and foaming agent composite huff and puff phase, and a nitrogen and carbon dioxide composite huff and puff phase.
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