-
公开(公告)号：US20240209727A1
公开(公告)日：2024-06-27
申请号：US18599325
申请日：2024-03-08
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Bangtang YIN , Chi ZHANG , Baojiang SUN , Zhiyuan WANG , Xuliang ZHANG , Yonghai GAO , Xiaohui SUN , Wei ZHANG
IPC: E21B47/10
CPC classification number: E21B47/10 , E21B2200/20
Abstract: An experimental device and method for co-existence of overflow and lost circulation in a fractured formation during drilling of a deviated well are provided. An inner cavity of an outer pipe is provided with an inner pipe to form a deviated casing. An upper side of the outer pipe is provided with a mixture outlet. A middle-lower side of the outer pipe is provided with a leakage port and two overflow ports. The gap width can be changed by adjusting a bolt and a support block to be compatible with different types of fracture models. A gas injection system includes an air compressor and a gas flowmeter. An upper port of a liquid injection system is connected to a joint arranged at upper ends of the inner pipe and outer pipe through a water pump, a liquid flowmeter and a liquid regulating valve.
-
2.发明公开公开(公告)号：US20230391959A1
公开(公告)日：2023-12-07
申请号：US18025666
申请日：2022-07-28
Applicant: CHINA UNIVERSITY OF PETROLEUM, EAST CHINA
Inventor： Yanling WANG , Bin LIU , Baojiang SUN , Lei LIANG , Di LI
Abstract: A preparation method for and an application of a modified siloxane-based supercritical carbon dioxide thickener are disclosed. The method includes the following steps: using 1,3-diallyl-1,3,5-triazine-2,4,6-trione as a polymerization monomer, and dropwise adding 1,3,5,7-tetramethylcyclotetrasiloxane for hydrosilylation in the presence of a catalyst to obtain a modified siloxane polymer. The obtained modified siloxane polymer is directly used as a supercritical carbon dioxide thickener without purification post-treatment; when in use, the modified siloxane polymer is prepared into a solution with a concentration of 1-2%, has an excellent thickening effect with no cosolvent required, and has high solubility in carbon dioxide and high temperature resistance.
-
公开(公告)号：US20230228162A1
公开(公告)日：2023-07-20
申请号：US17767929
申请日：2020-09-07
Applicant: CNPC BOHAI DRILING ENGINEERING COMPANY LIMITED , CHINA NATIONAL PETROLEUM CORPORATION , CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Jinshan MA , Baojiang SUN , Jintao QI , Liming WEI , Fengliang XI , Gang LIU , Zhiyuan WANG , Xing WANG , Haichao XU , Long MA , Jiacui LUAN , Lei CHEN , Guodong CHEN , Yuanlin ZHAO , Zisen YANG , Qiang HUANG , Menglei MA , Xiantao MENG , Hongyin WEI
Abstract: A pressure compensation device with an accumulator group for controlled pressure drilling includes an electrical flat valve, a check valve, an accumulator group, a flanged pup joint and a support base. The electrical flat valve is connected to the check valve and is mounted on a top surface of the support base. The accumulator group mounted on the whole support base is a pre-storage pressure compensation device for controlled pressure drilling, and is located at a downstream position of the check valve. The liquid inlet end of the accumulator group is connected to the check valve, and the liquid discharge end is connected to the flanged pup joint.
-
Patent Agency Ranking
4.发明公开公开(公告)号：US20240242011A1
公开(公告)日：2024-07-18
申请号：US18622220
申请日：2024-03-29
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Bangtang YIN , Yuhang PANG , Tianbao DING , Baojiang SUN , Zhiyuan WANG , Shujie LIU , Zhiming YIN , Meipeng REN
CPC classification number: G06F30/28 , G01F1/42 , G01F15/005
Abstract: A device and a method for early monitoring of gas intrusion based on pressure wave propagation are provided in the present disclosure. The technical solution is as follows. The lower end of the liquid storage tank is connected to the simulated wellbore through a liquid injection pipeline, a centrifugal pump, a pressure-stabilizing water tank, and a mass flowmeter. One end of the gas storage tank is connected to a screw air compressor, while the other end is connected to the simulated wellbore through an injection pipeline and a micro-orifice flowmeter. The gas-liquid mixer is provided at the upper end of the simulated wellbore, with the pressure-disturbing device connected below it. Multiple pressure sensors are provided at the middle of the simulated wellbore and connected to the computer via wires and an oscilloscope.
-
5.发明公开公开(公告)号：US20240240557A1
公开(公告)日：2024-07-18
申请号：US18620194
申请日：2024-03-28
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Bangtang YIN , Tianbao DING , Baojiang SUN , Zhiyuan WANG , Yonghai GAO , Hao LI , Xiaohui SUN , Xuerui WANG
IPC: E21B49/00
CPC classification number: E21B49/008 , E21B2200/20
Abstract: A device for simulating gas intrusion and bullheading in a wellbore under different inclinations is provided, which includes a wellbore outer pipe with an inner pipe and an LED light source therein. An outer wall of the wellbore outer pipe is provided with one or more inlets. A bubble generator is arranged outside a lower plug, and extends through the lower plug via an air inlet needle into the inner cavity of the wellbore outer pipe. An input end of the bubble generator is connected to an air compressor. A lower outlet of the wellbore outer pipe is connected to an inlet of a formation unit through a pipeline and a back pressure valve. A simulating method using such device is also provided.
-
公开(公告)号：US20250116163A1
公开(公告)日：2025-04-10
申请号：US18981584
申请日：2024-12-15
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Bangtang YIN , Kai FENG , Baojiang SUN , Zhiyuan WANG , Yonghai GAO , Hao LI , Jianbo ZHANG , Guizhen XIN
Abstract: A well-killing system for ultra-deep well drilling with co-existence of overflow and lost circulation is provided. An upper part of a wellhead blowout preventer is connected to a first mud pump and a lost circulation material mud tank through a pipeline, a first three-way control valve, and a second three-way control valve. A lower port of the second three-way control valve is connected to a second mud pump and a mud pit. A lower port of the first three-way control valve is connected to a first well-killing fluid tank and a second well-killing fluid tank. A gas-liquid separation tank is connected to a side of a wellhead device. A first pressure sensor and a first flowmeter are provided on a left port of the first three-way control valve. A second pressure sensor and a second flowmeter are provided at a left port of a third three-way control valve.
-
公开(公告)号：US20240385103A1
公开(公告)日：2024-11-21
申请号：US18260254
申请日：2023-03-10
Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Inventor： Zhiyuan WANG , Jihao PEI , Baojiang SUN , Zhengfeng SHAN , Longqiao CHEN , Jianbo ZHANG , Shikun TONG
Abstract: A microscopic and macroscopic evaluation method for a dual-effect hydrate inhibitor is provided. The method is applicable to the performance evaluation of traditional thermodynamic inhibitors and kinetic inhibitors. The present invention comprehensively evaluates the dual-effect hydrate inhibitor microscopically and macroscopically through a microscopic evaluation device and a macroscopic evaluation device, thereby more intuitively and efficiently screening out the dual-effect inhibitor with excellent performance. The present invention explains the action mechanism of the dual-effect inhibitor microscopically, accurately evaluate the effects of the inhibitor in two aspects of particle aggregation and particle adhesion, and provide a theoretical basis for screening the dual-effect inhibitor. Moreover, the present invention can verify the screened inhibitor macroscopically by using a flow evaluation device close to a field working condition to obtain the action effects of the dual-effect inhibitor under different production parameters, so that the comprehensive and multi-angle performance evaluation of the dual-effect inhibitor is achieved.
-
8.发明申请公开(公告)号：US20190178046A1
公开(公告)日：2019-06-13
申请号：US16045249
申请日：2018-07-25
Applicant: CHINA UNIVERSITY OF PETROLEUM (East China) , CIMC OFFSHORE ENGINEERING RESEARCH INSTITUTE CO. LTD.
Inventor： Zhiyuan WANG , Youqiang LIAO , Baojiang SUN , Dahui LIU , Yao TENG , Yu CHEN
Abstract: The present invention relates to the field of drilling, and provides an anti-settling apparatus and a method and apparatus for checking the same, and an apparatus for preventing settlement of a well. The anti-settling apparatus of the present invention is installed in the wellhead region of the well during drilling to prevent the well from settlement. The anti-settling apparatus generally includes: an anti-settling base having an opening corresponding to the wellhead formed at the center thereof, the anti-settling base being disposed in the wellhead region during drilling; and an interlocking member 5 disposed at the opening to connect and fix a casing provided in the well with the anti-settling base. The apparatus for preventing settlement of a well comprises the anti-settling apparatus and checking method for the anti-settling apparatus.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.014 seconds)
