公开(公告)号：US20240152672A1

公开(公告)日：2024-05-09

申请号：US18067793

申请日：2022-12-19

Applicant: China University of Petroleum (East China) ,  Shandong University of Science And Technology

Inventor： Jian Hou ,  Kang Zhou ,  Shuai Liu ,  Zhibin An ,  Qingjun Du ,  Bei Wei ,  Yongge Liu

IPC: G06F30/28

CPC classification number: G06F30/28

Abstract: A method and system for predicting water flooding recovery of fault block reservoirs considering a whole process optimization includes: determining influencing factors in water flooding recovery of fault block reservoirs; screening master parameters of the water flooding recovery of the fault block reservoirs; determining a single-factor correlation between the water flooding recovery of the fault block reservoirs and the master parameters; designing multi-factor orthogonal experimental schemes; performing a whole-process water flooding optimization for each of the experimental schemes including separate-layer injection and production, well-type conversion, and injection and production adjustment, to obtain the maximum water flooding recovery; and determining a prediction model of the water flooding recovery of the fault block reservoirs using least square method based on results of the whole process optimization of orthogonal experiments, further obtaining a prediction model of the water flooding recovery of the fault block reservoirs.

公开(公告)号：US20240134075A1

公开(公告)日：2024-04-25

申请号：US18492896

申请日：2023-10-23

Applicant: China University of Petroleum (East China)

Inventor： Qizhen DU ,  Shihao ZHOU ,  Zhaoshun LIU ,  Wenhao LYU ,  Li-Yun FU

IPC: G01V1/00 ,  G01V1/28

CPC classification number: G01V1/008 ,  G01V1/284

Abstract: This disclosure relates to the technical field of exploration geophysics, in particular to a method, a device, and a computer device for decoupling anisotropic elastic wave. The method includes: determining a set of Thomsen parameters included in an anisotropic model based on a received to-be-decomposed wave field decomposition request; transforming the set of Thomsen parameters to obtain a set of initial elastic parameters; performing S-wave and P-wave velocities separation processing for the set of initial elastic parameters to obtain a set of target P-wave elastic parameters and a set of target S-wave elastic parameters; and substituting those into the anisotropic model to process the to-be-decomposed wave field and obtain a target P-wave matrix and a target S-wave matrix. The process of decomposing S-wave and P-wave fields is simplified and the calculation cost is reduced according to the embodiments of this disclosure.

公开(公告)号：US20240133285A1

公开(公告)日：2024-04-25

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.

公开(公告)号：US20240101911A1

公开(公告)日：2024-03-28

申请号：US18314564

申请日：2023-05-09

Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

Inventor： Chunyi LI

IPC: C10G11/18

CPC classification number: C10G11/187 ,  C10G2300/1033 ,  C10G2300/4018 ,  C10G2300/708 ,  C10G2400/20

Abstract: A method for preventing coking in a reaction system for producing light olefins from crude oil by catalytic cracking includes: reducing temperature of oil gas discharged from a reactor, adsorbing a condensed liquid-phase oil by a spent catalyst, allowing a cooled oil gas to enter a disengager for gas-solid separation, and delivering most of the spent catalyst to the disengager. The above method is taken to avoid coking of the reaction system and to ensure stable operation of a device for a long period of time; and the high-temperature potential heat of the oil gas is fully utilized, making the energy utilization of the whole system more reasonable, and achieving the effects of energy saving and emission reduction.

公开(公告)号：US20240094140A1

公开(公告)日：2024-03-21

申请号：US18235386

申请日：2023-08-18

Applicant: China University of Petroleum (East China)

Inventor： Min WANG ,  Jiexin ZOU ,  Mingbo WU ,  Han HU ,  Zhongtao LI ,  Debin KONG ,  Guanxiong WANG

IPC: G01N21/89 ,  B65H20/02 ,  G01N21/892

CPC classification number: G01N21/8914 ,  B65H20/02 ,  G01N21/892 ,  B65H2404/10 ,  B65H2406/15 ,  B65H2701/19

Abstract: An on-line detection system for defects of an MEA is provided. The detection system includes a workbench, two connecting rods are arranged inside the workbench, two ends of the two connecting rods are both connected to two side walls of the workbench by means of bearings, and conveying rollers are fixedly arranged outside the two connecting rods in a sleeving manner. One side of the workbench is fixedly provided with a first electric motor, and an output end of the first electric motor is fixedly connected to one of the connecting rods. Belt pulleys are fixedly arranged outside the two connecting rods in a sleeving manner, and a belt is arranged outside the two belt pulleys in a sleeving manner. A hollow roller is arranged on an inner side of the workbench, and a plurality of exhaust holes are provided in a top of the hollow roller.

公开(公告)号：US20240052247A1

公开(公告)日：2024-02-15

申请号：US18382750

申请日：2023-10-23

Applicant: China University of Petroleum-Beijing ,  Beijing Carbon Zero Hydrogen Electric Technology Co., Ltd.

Inventor： Hongjun ZHOU ,  Quangui WU ,  Hongmei SONG ,  Fengyun BI ,  Enze ZHOU ,  Guanglin ZHOU ,  Chunming XU

IPC: C10G9/24 ,  C07C4/04

CPC classification number: C10G9/24 ,  C07C4/04

Abstract: The present invention provides a method of steam cracking using electricity to supply energy. This method is to provide energy for steam cracking reaction of a cracking raw material by electromagnetic induction with electricity; the cracking raw material comprises one or more of naphtha, cycloalkane and cycloolefin; wherein the cycloalkane is a C4-C8 cycloalkane, and the cycloolefin is a C4-C8 cycloolefin. The present invention utilizes electricity to provide energy for the steam cracking reaction through an electromagnetic coil, which is a new use of electricity and solve the current problem of excess electricity. Moreover, utilizing the electromagnetic coil to provide power can make the heat distribution in the furnace tube of the cracking furnace more uniform, and it is easier to control the reaction temperature and the progress of the reaction.

公开(公告)号：US11879817B2

公开(公告)日：2024-01-23

申请号：US18242684

申请日：2023-09-06

Applicant: CHINA UNIVERSITY OF PETROLEUM

Inventor： Weiliang Wang ,  Yanfeng Geng ,  Li Sheng ,  Jinming Tian ,  Minglei Li

IPC: G01M7/02 ,  G01M7/04 ,  E21B7/04

CPC classification number: G01M7/025 ,  G01M7/022 ,  G01M7/045 ,  E21B7/04

Abstract: The present invention belongs to the technical field of oil field drilling, and relates to a ground testing device for a stabilized platform of a rotary steerable drilling tool. The ground testing device includes: a first supporting member and a second supporting member that are oppositely arranged, where the second supporting member is provided with a first mounting hole; a drill collar and a drill collar motor mounted outside the first supporting member, where a motor shaft of the drill collar motor penetrates the first supporting member and is connected to the drill collar, and a stabilized platform mounting assembly is arranged inside the drill collar; and a first vibration member connected to the drill collar and a second vibration member arranged in the first mounting hole in a sleeved manner, where an elastic member is arranged between the second vibration member and the second supporting member, and the elastic member is arranged on the second vibration member in a sleeving manner. An end portion of the first vibration member is provided with first vibration teeth, an end portion of the second vibration member is provided with second vibration teeth matching the first vibration teeth, and the second vibration member is provided with a first stop member which matches a second stop member arranged in the first mounting hole. According to the present invention, vibration, interference loading, and high-temperature simulation can be performed, and ground tests of different types of mechanical stabilized platforms are achieved.

公开(公告)号：US20240017275A1

公开(公告)日：2024-01-18

申请号：US18150653

申请日：2023-01-05

Applicant: China University of Petroleum-Beijing

Inventor： Sihong GAO ,  Yiping FAN ,  Chunxi LU

IPC: B04C5/103 ,  B04C3/06 ,  B04C5/187

CPC classification number: B04C5/103 ,  B04C3/06 ,  B04C5/187

Abstract: The present disclosure provides a cyclone separator and a cyclone separation method. The cyclone separator includes a shell and a core tube. An upper end of the shell is provided with a gas inlet. A lower end of the shell is provided with a shell outlet. An opening at a lower end of the core tube is provided inside the shell. The lower end of the core tube is provided with a baffle structure, and at least a portion of the baffle structure extends vertically. By providing the baffle structure, the present disclosure can cut off the flow path of the short-circuit flow and the radially centripetal moving gas flow such as the centripetal flow in the particle spiral band area, weaken the short-circuit flow, the inner vortex flow and the precessing vortex core, thus improving separation efficiency of fine particles with particle diameters of 1 μm to 10 μm.

公开(公告)号：US20240017232A1

公开(公告)日：2024-01-18

申请号：US18354111

申请日：2023-07-18

Applicant: China University of Petroleum-Beijing

Inventor： Mengxi LIU ,  Chunxi LU ,  Chunming XU ,  Guiyuan JIANG ,  Jian LI

IPC: B01J8/26 ,  B01J8/24 ,  B01J8/00 ,  B01D45/16 ,  B01D45/04 ,  B01D3/38

CPC classification number: B01J8/26 ,  B01J8/24 ,  B01J8/0015 ,  B01J8/005 ,  B01D45/16 ,  B01D45/04 ,  B01D3/38 ,  B01J2208/00769 ,  B01J2208/00893

Abstract: A coupled fluidized beds reactor-regenerator apparatus for catalytic dehydrogenation of propane. The fluidized bed reactor comprising a raw material delivery system, a pre-rising system, a reaction system, a gas-solid separation system and an internal circulation pipeline, the reaction system includes a conical riser and a turbulent bed reactor; the raw material delivery system, the pre-rising system, the conical riser, the turbulent bed reactor, and the gas-solid separation system are consecutively connected in this order from bottom to top; the bottom outlet of the gas-solid separation system is connected to the inlet of the internal circulation pipeline, and the outlet of the internal circulation pipeline is connected to the raw material delivery system and/or the reaction system. The coupled fluidized beds reactor-regenerator apparatus for catalytic dehydrogenation of propane includes the fluidized bed reactor, a gas-solid airlift loop regenerator, a recirculation inclined pipe and a regeneration inclined pipe.

公开(公告)号：US11787990B2

公开(公告)日：2023-10-17

申请号：US18148939

申请日：2022-12-30

Applicant: China University of Petroleum (Beijing) ,  CNPC Chuanqing Drilling Engineering Company Limited ,  CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED

Inventor： Guancheng Jiang ,  Jinsheng Sun ,  Yinbo He ,  Xin Zhang ,  Chunyao Peng ,  Tengfei Dong ,  Bin Tan ,  Tie Geng ,  Lili Yang ,  Xiaohu Luo ,  Xuwu Luo ,  Xing Liang ,  Changwei Chen ,  Xiaobo Liu ,  Rongchao Cheng ,  Jiansheng Luo ,  Jianguo Zhang ,  Yong Wang ,  Daqi Fu ,  Qifa Ran ,  Li Zhao ,  Kaixiao Cui ,  Xiaoxiao Ni

IPC: C09K8/16 ,  C09K8/24 ,  C09K8/20

CPC classification number: C09K8/24 ,  C09K8/16 ,  C09K8/206 ,  C09K2208/10 ,  C09K2208/12 ,  C09K2208/34

Abstract: The present invention relates to the field of petroleum industry phase oilfield chemistry, and specifically relates to a bionic and dual-phobic drilling fluid. The drilling fluid contains a bionic wall-fixing agent, a bionic lubricant, a super dual-phobic agent, a scrap-carrying agent and a bionic shale inhibitor. The present invention uses the theory of bionics and the theory of a downhole rock surface being double phobic as a basis. By means of using the bionic wall-fixing agent, the bionic lubricant, the super dual-phobic agent, the scrap-carrying agent and the bionic shale inhibitor, which have special properties of imitating animals and plants in nature, and using a series of bionic treatment agents, a set of bionic and dual-phobic drilling fluid systems, which corresponds to an unconventional, complex oil and gas well, is formed.