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11.发明授权公开(公告)号：US12123821B2
公开(公告)日：2024-10-22
申请号：US18537463
申请日：2023-12-12
Applicant: China University of Petroleum (Beijing)
Inventor： Hao Chen , Xiliang Liu , Weiming Cheng , Mingsheng Zuo , Borui Li , Baoxi Yang , Yi Wu , Haipeng Liu , Xinyu Qi , Feng Luo , Linxi Yang , Wen Liu , Pengbo Li
CPC classification number: G01N15/0893 , G01N33/24 , E21B43/164
Abstract: The present disclosure discloses a combined apparatus for experimentation on different storage modes of carbon dioxide, which comprises a displacement device, a storage reaction device and a measuring device, wherein the displacement device comprises a displacement pump, and an intermediate oil-water container and an intermediate carbon dioxide container that are arranged in parallel, the displacement pump is connected to a first end of the parallel connection of the intermediate oil-water container and the intermediate carbon dioxide container, and an inlet end of the storage reaction device is connected to a second end of the parallel connection of the intermediate oil-water container and the intermediate carbon dioxide container; the measuring device comprises a weigher, a first pressure detector, a gas-liquid separator, a gas meter and a mineral analyzer, wherein the first pressure detector is arranged in the intermediate oil-water container, and the gas-liquid separator is connected to the outlet end of the storage reaction device. Thus, the storage amount of carbon dioxide in different storage modes can be evaluated by means of a single apparatus. Compared with the prior art in which different storage experiments are performed separately.
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公开(公告)号：US12123292B1
公开(公告)日：2024-10-22
申请号：US18606428
申请日：2024-03-15
Inventor： Kai Zhang , Guojing Xin , Zhongzheng Wang , Piyang Liu , Liming Zhang , Xia Yan , Huaqing Zhang , Zifeng Sun , Feng Jia
CPC classification number: E21B43/16 , G06F30/28 , G06N3/092 , E21B2200/20
Abstract: A differentiated real-time injection-production optimization adjustment method of an intelligent injection-production linkage device belongs to the field of oil reservoir injection-production technologies. The method includes: initializing networks; building an injection-production environment model; by an agent, reading an initial state of an injection-production environment; writing a file by an injection-production policy network; obtaining state data of the moment t+1; reading a next state and an economic net present value within the time step; assigning the next state to the current state until a to-be-optimized production period is completed; by batch training on the model, updating a parameter of the environment agent model; updating a parameter of the action evaluation network and a parameter of the injection-production policy network; repeating the above steps until an optimal model is obtained; based on the stored optimal model, linking the intelligent injection-production device to obtain state information of the oil reservoir.
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公开(公告)号：US12115522B2
公开(公告)日：2024-10-15
申请号：US17390123
申请日：2021-07-30
Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING
Inventor： Liang Zhao , Jinsen Gao , Butian Xia , Lixia Dong , Jingye Chen , Yuhao Zhang , Chunming Xu
IPC: B01J29/40 , B01J21/04 , B01J23/10 , B01J29/70 , B01J35/00 , B01J37/02 , B01J37/04 , B01J37/08 , C10G45/12
CPC classification number: B01J29/405 , B01J21/04 , B01J23/10 , B01J29/40 , B01J29/70 , B01J35/19 , B01J37/0201 , B01J37/0207 , B01J37/04 , B01J37/082 , C10G45/12 , B01J2229/18 , B01J2229/20 , C10G2300/104 , C10G2300/202 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2300/70 , C10G2400/02
Abstract: Provided are an in situ bifunctional catalyst for deep desulfurization and increasing octane number of gasoline, and its preparation method and application. The bifunctional catalyst includes a modified catalyst carrier and a loaded active metal, where the modified catalyst carrier is a composite carrier prepared through mixing γ-Al2O3 and an acidic molecular sieve by a binder and calcining. When the bifunctional catalyst provided by the present application is used for hydrodesulfurization of gasolines, deep desulfurization, olefin reduction and octane number preservation can be realized simultaneously, thereby obtaining a high-quality oil product.
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公开(公告)号：US20240289899A1
公开(公告)日：2024-08-29
申请号：US18426597
申请日：2024-01-30
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Hai SUN , Fei LUO , Dongyan FAN , Lei ZHANG , Jun YAO , Shuaishi FU , Kai ZHANG , Yongfei YANG
CPC classification number: G06Q50/02 , E21B43/16 , E21B2200/20
Abstract: Provided is a method for shale gas production prediction, including: acquiring real shale gas production data, and determining a target production decline curve model according to the real shale gas production data; setting a time step for production prediction, and obtaining a linear production decline curve by performing production prediction by using the target production decline curve model based on the time step; determining target shale gas production residuals according to the linear production decline curve and the real shale gas production data, inputting the target shale gas production residuals to a long short-term memory, and obtaining a residual prediction result by performing production prediction according to the long short-term memory and the time step; and determining a target production prediction result of shale gas well to be subjected to production prediction based on the linear production decline curve and the residual prediction result.
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公开(公告)号：US12055022B2
公开(公告)日：2024-08-06
申请号：US17219132
申请日：2021-03-31
Applicant: China University of Petroleum (East China) , Shandong University of Science and Technology
Inventor： Jian Hou , Kang Zhou , Qingjun Du , Yongge Liu , Yueliang Liu , Bei Wei , Dong Zhao , Zhibin An , Dejun Wu
Abstract: A method for realizing balanced displacement of crude oil by injection and production optimization coordinated chemical flooding which comprises the following steps: determining the median size and elastic modulus of viscoelastic particles according to the average permeability of the reservoir; optimizing the concentration ratio of the total concentration of the chemical agent; the physical parameters of each layer are counted, and the hierarchical system is combined according to the entropy weight algorithm and the cluster analysis method based on the gravity center method; the optimal section slug volume ratio of the single well injected with two slugs under the heterogeneity of the permeability of the strata is calculated; and the objective function is established by combining the coefficient of variation of remaining oil saturation, the effect of chemical flooding and the cost, and the numerical simulator is used to optimize the objective function.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240229635A9
公开(公告)日：2024-07-11
申请号：US18402831
申请日：2024-01-03
Applicant: CHINA UNIVERSITY OF PETROLEUM
Inventor： Weiliang Wang , Yanfeng Geng , Mingzhu Shao , Huijie Xu , Mengyu Tu
IPC: E21B44/00 , E21B4/04 , E21B7/06 , E21B47/024 , G01D21/02
CPC classification number: E21B44/005 , E21B4/04 , E21B7/068 , E21B47/024 , G01D21/02 , E21B2200/20
Abstract: Provided are a method and device for fault estimation of a measurement and control device for a rotary steerable drilling system. The method for fault estimation includes: S1, establishing a state model of the measurement and control device for the rotary steerable drilling system; S2, establishing a fault-free model filter and a fault model filter, and initializing the fault-free model filter and the fault model filter; S3, detecting whether the measurement and control device for the rotary steerable drilling system has a fault; and S4, reinitializing the fault model filter under the condition that a detection result is fault-free; reinitializing the fault-free model filter under the condition that the detection result is faulty; and estimating, by the fault model filter, the fault in real time, and obtaining, by the fault model filter, the estimation value {circumflex over (x)}wf.
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17.发明公开公开(公告)号：US20240228880A1
公开(公告)日：2024-07-11
申请号：US18322766
申请日：2023-05-24
Applicant: CHINA UNIVERSITY OF PETROLEUM—BEIJING
Inventor： Qichao LV , Tongke ZHOU , Zhengen GAO , Abdolhossein HEMMATI-SARAPARDEH , Zilong LIU , Hossein JALALIFAR , Rong ZHENG , Longxuan LI , Zhaoxia DONG
IPC: C09K23/16
CPC classification number: C09K23/16
Abstract: An aqueous carbon dioxide foam stabilized by organic Janus nanosheets, a preparation method and application thereof. The preparation method can be provided as: S1: subjecting molecules with hydrophobic tail to spontaneous and ordered arrangement in a mixture of ethanol and water; S2: adding molecules with hydrophilic head to the solution of S1, and adjusting a pH value to 6.0-6.5 to perform a synthesis of organic Janus nanosheet monomers; S3: adding ethanol to the solution of S2, and adjusting the pH value to 6.0-6.5 to perform a heating reflux; then adjusting the pH value to 7.0-8.0, and adding sodium ethylate, adjusting a temperature to 70-85° C. to perform a reaction under an inert atmosphere, and then adjusting the pH to 8.0-9.0, and stirring to be completely dissolved. The aqueous CO2 foam is prepared from CO2 and a liquid phase.
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18.发明公开公开(公告)号：US20240184844A1
公开(公告)日：2024-06-06
申请号：US18490501
申请日：2023-10-19
Applicant: China University of Petroleum (East China)
Inventor： Xinyue Duan , Manrui Xu , Liang Gong , Chuanyong Zhu , Jiadong Li , Tianpeng Zhang
CPC classification number: G06F17/11 , G01N25/18 , F28F2200/00
Abstract: A method and system for predicting heat exchanger performance, an electronic device and a storage medium are provided. The method comprises: acquiring a flow unit of the heat exchanger and constructing a physical model of the flow unit according to structural parameters of the heat exchanger; constructing a coupled model of an interphase transfer mechanism for oil-gas-water three-phase flow using computational fluid dynamics according to the physical model; constructing a fully coupled population balance model for flow and heat transfer of oil-gas-water three-phase flow; solving the fully coupled population balance model to obtain a model calculation result and determining a Nusselt number and a Fanning friction factor; and determining a comprehensive heat transfer factor, wherein the comprehensive heat transfer factor is used to evaluate heat transfer performance of the heat exchanger.
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公开(公告)号：US12000245B2
公开(公告)日：2024-06-04
申请号：US18341813
申请日：2023-06-27
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Jianbo Zhang , Zhiyuan Wang , Xiaohui Sun , Baojiang Sun , Hui Liu , Shikun Tong , Qingwen Kong , Peng Liu
CPC classification number: E21B41/0099
Abstract: An apparatus for preventing and controlling secondary generation of hydrates in a wellbore during depressurization exploitation of offshore natural gas hydrates includes a gas recovery pipe column, a water recovery pipe column, a gas-liquid mixed transportation pipe section, a data collecting and processing unit, and a reaction control apparatus; according to characteristics of different exploitation pipe columns, three injection pipelines and three monitoring points are arranged to predict dynamic changes in a secondary generation risk of the hydrates throughout the wellbore; measures for preventing and controlling the secondary generation of the hydrates are taken at different pipe column positions by the integrated utilization of inhibitor injection, heating for pipe columns, the additional arrangement of electric submersible pumps, and other methods.
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公开(公告)号：US11998899B2
公开(公告)日：2024-06-04
申请号：US17390820
申请日：2021-07-30
Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING
Inventor： Liang Zhao , Jinsen Gao , Butian Xia , Lixia Dong , Jingye Chen , Yuhao Zhang , Chunming Xu
IPC: B01J29/40 , B01J21/04 , B01J23/10 , B01J29/70 , B01J35/00 , B01J37/02 , B01J37/04 , B01J37/08 , C10G45/12
CPC classification number: B01J29/405 , B01J21/04 , B01J23/10 , B01J29/40 , B01J29/70 , B01J35/19 , B01J37/0201 , B01J37/0207 , B01J37/04 , B01J37/082 , C10G45/12 , B01J2229/18 , B01J2229/20 , C10G2300/104 , C10G2300/202 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2300/70 , C10G2400/02
Abstract: Provided are a bifunctional catalyst for deep desulfurization and gasoline quality improvement and a preparation method therefore and a use thereof. The bifunctional catalyst includes a modified catalyst and a loaded active metal, where the modified catalyst carrier is a γ-Al2O3 modified with a rare earth element, or the modified catalyst carrier is a composite carrier prepared by mixing and calcinating γ-Al2O3 and an acid molecular sieve through a binder, and then modifying with the rare earth element. The bifunctional catalyst for deep desulfurization and gasoline quality improvement can achieve deep desulfurization of high-sulfur fluid catalytic cracking gasoline, and ensure no significant loss of octane number under relatively mild conditions.
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