公开(公告)号：US20230335015A1

公开(公告)日：2023-10-19

申请号：US18023196

申请日：2022-03-25

Applicant: CHINA UNITED COALABED METHANE ENGINEERING RESEARCH CENTER CO., LTD. ,  CHINA UNIVERSITY OF PETROLEUM ( BEIJING)

Inventor： Junyao Deng ,  Fengyin Xu ,  Jinhui Zhou ,  Lei Zhang ,  Dong Chen ,  Yuan Wang ,  Yuan Ji ,  Xiaoyi Sun ,  Liwei Chi ,  Yi Zhang ,  Siqi Mo ,  Yun Yang

IPC: E21B41/00 ,  G09B25/02

CPC classification number: G09B25/02 ,  E21B41/00

Abstract: An experimental apparatus for simulating substance exchange between a wellbore and a formation. The apparatus includes: a wellbore simulation system, a wellbore liquid injection system, a formation simulation system, a formation fluid injection system, and a data acquisition system; the wellbore simulation system includes a vertically arranged wellbore body for simulating a wellbore; the formation simulation system includes a horizontally arranged sealing body for simulating a formation and a mortar filler filled in the sealing body; the wellbore liquid injection system is connected to the upper end of the wellbore body; the formation fluid injection system is connected to one end of the sealing body so as to inject a formation fluid into the sealing body; the other end of the sealing body is communicated with the bottom of the wellbore body; and the data acquisition system is electrically connected to the wellbore simulation system and the formation simulation system.

公开(公告)号：US11747306B2

公开(公告)日：2023-09-05

申请号：US17690475

申请日：2022-03-09

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Hong Zhang ,  Xiaoben Liu ,  Tong Shi ,  Honglin Zhao ,  Chengqi Liu ,  Jie Liu

IPC: G01N29/04 ,  F16L55/40 ,  G01N29/12 ,  F16L101/30

CPC classification number: G01N29/043 ,  F16L55/40 ,  G01N29/048 ,  G01N29/12 ,  F16L2101/30

Abstract: The present application provides a pipeline structural fault diagnosis apparatus and a diagnosis method. The pipeline structural fault diagnosis apparatus includes a signal generating apparatus configured to generate an acoustic wave signal by knocking a pipeline; a signal collecting apparatus configured to collect the acoustic wave signal; a signal storage apparatus configured to store the acoustic wave signal for a signal processing and analyzing apparatus to analyze and determine a fault type, a fault degree, and a fault position. The acoustic wave signal after being generated by the signal generating apparatus is collected by the signal collecting apparatus and stored in the signal storage apparatus. The signal processing and analyzing apparatus extracts the acoustic wave signal in the signal storage apparatus, and performs processing and analysis to determine the fault type, the fault degree, and the fault position of the pipeline structure.

公开(公告)号：US20230141812A1

公开(公告)日：2023-05-11

申请号：US17777594

申请日：2020-11-25

Applicant: China University of Petroleum-Beijing

Inventor： Chengyun MA ,  Yongcun FENG ,  Jingen DENG

IPC: G01N3/12 ,  E21B49/00 ,  G01N33/24

CPC classification number: G01N3/12 ,  E21B49/00 ,  G01N33/24

Abstract: A dynamic crack leaking stoppage evaluation experiment device includes a crack simulation experiment instrument having a dynamic crack simulation mechanism. The dynamic crack leaking stoppage evaluation experiment device can simulate a dynamic change process of a crack from a closed state to an open state. An experiment method can be applied to study a variation range of the width of the crack that have been subjected to self-adaptive leaking stoppage with various combinations of leaking stoppage materials and under different increments, and the method can also be applied to quantitatively study on effecting patterns of rheological parameters and hydraulic parameters of well drilling fluid on stability of a leaking stoppage layer in the dynamic crack, so that enabled is not only simulation of leaking stoppage process of a dynamic crack, but also real-time monitoring and evaluation on leaking stoppage effect and leaking stoppage location inside the dynamic crack.

公开(公告)号：US11369906B2

公开(公告)日：2022-06-28

申请号：US17091160

申请日：2020-11-06

Applicant: China University of Petroleum-Beijing

Inventor： Chunxi Lu ,  Wen Zhou ,  Chenglin E ,  Zixuan Li

IPC: B01D45/12 ,  B01D45/16 ,  B01D45/08 ,  B01D45/02 ,  B01D45/06 ,  B01D19/00 ,  B01D53/24 ,  B01D53/26

Abstract: A gas-liquid separation device comprises: an outer housing extending vertically, which is provided with a gas outlet at an upper end of the outer housing and a liquid outlet at a lower end of the outer housing; an inner housing disposed in the outer housing and extending vertically, an upper end of the inner housing being coupled to the outer housing in a sealed manner, a lower end of the inner housing being opened, with an annular space formed between the outer housing and the inner housing; a feeding tube inserted into the outer housing and communicated with the inner housing, with a cyclone mechanism between the feeding tube and the inner housing to output fluid into the inner housing as a swirling flow. The present disclosure can reduce the disturbance of the downward gas flow and the upward gas flow in the separation space, thus improving the separation efficiency.

公开(公告)号：US11338264B2

公开(公告)日：2022-05-24

申请号：US17153180

申请日：2021-01-20

Applicant: China University of Petroleum-Beijing

Inventor： Chunxi Lu ,  Jiantao Li ,  Xiuying Yao

IPC: B01J8/00 ,  B01J8/18 ,  B01J19/00 ,  B01J19/24

Abstract: The present disclosure discloses a fluidized bed cooler with regional coordination enhancement, comprising a shell, a catalyst inlet, an interior of the shell is divided into a catalyst inlet influence region, a dilute phase region, a dense phase region and a gas distributor influence region; a catalyst inlet inclined tube is provided obliquely upward at the catalyst inlet, and a regional particle distributor is provided at the catalyst inlet; the dense phase region is provided with a plurality of dense phase baffle plates, and the dilute phase region is provided with a plurality of dilute phase baffle plates; and the gas distributor influence region is provided with double gas distributors. The fluidized bed cooler simultaneously well solves the low internal stability and the low heat exchange efficiency of the fluidized bed cooler, thereby realizing the stable and efficient operation of the fluidized bed cooler.

公开(公告)号：US11306860B2

公开(公告)日：2022-04-19

申请号：US16870830

申请日：2020-05-08

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Yi Xiong ,  Da Yu ,  Kunpeng Zhao

IPC: G01B21/32 ,  F16L55/28 ,  F16L101/30

Abstract: The disclosure provides a pipeline deformation detection PIG, including: a detection body and a foam body; the detection body is arranged in the foam body, and the detection body includes: a pressure sensing element; and the pressure sensing element includes: a pressure sensor and a pressure coupling unit. The detection body of the pipeline deformation detection PIG of the present disclosure is provided in the foam body, the inner side surface of the pressure coupling unit is in contact with the force receiving surface of the pressure sensor, and the outer side surface is in contact with the inner wall of the pipeline to be detected, the pressure coupling unit can translate the pipeline deforms into pressure according to coupling deformation, and meanwhile solve the stuck problem of the existing detection PIG in a large deformation pipeline.

公开(公告)号：US11230671B2

公开(公告)日：2022-01-25

申请号：US17028994

申请日：2020-09-22

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： Xingying Lan ,  Yuming Zhang ,  Jinsen Gao ,  Xiaogang Shi ,  Chengxiu Wang

IPC: B01J8/00 ,  B01J8/18 ,  B01J8/26 ,  B01J8/28 ,  B01J19/00 ,  B01J19/24 ,  C10G9/36 ,  C10G31/08 ,  C10G57/00

Abstract: A coupling reaction apparatus for heavy oil cracking-gasification, including a cracking section and a gasification section communicated with each other, and the cracking section is located above the gasification section; the cracking section is provided with a heavy oil raw material inlet and a fluidizing gas inlet, and an upper part of the cracking section is provided with an oil-gas outlet; and the gasification section is provided with a gasification agent inlet.

公开(公告)号：US20210354118A1

公开(公告)日：2021-11-18

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 ,  B01J37/04 ,  B01J21/04 ,  B01J37/02 ,  B01J37/08 ,  C10G45/12 ,  B01J29/70

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.

公开(公告)号：US11136488B1

公开(公告)日：2021-10-05

申请号：US17228424

申请日：2021-04-12

Applicant: China University of Petroleum (Beijing)

Inventor： Guancheng Jiang ,  He Shi ,  Kaixiao Cui ,  Yinbo He ,  Lili Yang ,  Tengfei Dong ,  Chunyao Peng ,  Xuwu Luo ,  Bin Tan ,  Jun Cai ,  Xing Liang ,  Zhiliang You ,  Yong Wang

IPC: C09K8/36 ,  C08G63/685 ,  C08G63/78

Abstract: The present invention relates to the technical field of oil and gas drilling, and discloses a biodiesel-based constant rheological property drilling fluid containing intelligent temperature responsive polymer, which contains two or more of the following components which are stored in admixture or separately: base oil biodiesel, aqueous phase, emulsifier, organic soil, constant rheological property flow pattern modifier, hydrolysis inhibitor, filtrate reducer and weighting material; the constant rheological property flow pattern modifier is an intelligent temperature responsive polymer, and the polymer contains structural units provided by bis-hydroxyethyl bis-hydroxypropyl stearyl ammonium chloride, ethylene bis-stearamide and dimerized fatty acid. The drilling fluid provided by the present invention has excellent environmental protection property and degradability, and has conventional rheological property, weak gel structure and fluid loss property which are equivalent to those of the conventional oil-based drilling fluid, and also has excellent temperature resistance, CaO compatibility and constant rheological property.

公开(公告)号：US20210087475A1

公开(公告)日：2021-03-25

申请号：US17028994

申请日：2020-09-22

Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING

Inventor： XINGYING LAN ,  YUMING ZHANG ,  JINSEN GAO ,  XIAOGANG SHI ,  CHENGXIU WANG

IPC: C10G9/36 ,  C10G31/08 ,  C10G57/00

Abstract: A coupling reaction apparatus for heavy oil cracking-gasification, including a cracking section and a gasification section communicated with each other, and the cracking section is located above the gasification section; the cracking section is provided with a heavy oil raw material inlet and a fluidizing gas inlet, and an upper part of the cracking section is provided with an oil-gas outlet; and the gasification section is provided with a gasification agent inlet.