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公开(公告)号：US11193333B2
公开(公告)日：2021-12-07
申请号：US17079655
申请日：2020-10-26
Applicant: Southwest Petroleum University , Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)
Inventor： Yang Tang , Shunxiao Huang , Guorong Wang , Qingyou Liu , Shouwei Zhou , Xushen Li , Lin Zhong , Qingping Li , Yufa He , Zhong Li , Yanjun Li , Hexing Liu , Jianglin Zhu , Jiaxin Yao , Jiang Lu , Leizhen Wang
Abstract: The present invention provides an automatic jet breaking tool for solid fluidization exploitation of natural gas hydrate, which mainly includes an upper joint, an outer cylinder, an inner sliding sleeve, a lockup sliding sleeve, a thrust bearing, a spring, a jet joint, a telescopic jet sprinkler, a plug block and an extrusion seal ring. The present invention mainly adopts the principle of throttling control pressure to control the position of the inner sliding sleeve by controlling a flow rate of a drilling fluid, so as to turn on and turn off the jet breaking tool. The application of the present invention can realize automatic jet breaking of solid fluidization exploitation of the natural gas hydrate, reduce procedures of a round trip operation, and effectively improve the efficiency and safety of the exploitation operation of the natural gas hydrate.
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12.发明授权公开(公告)号：US11199050B2
公开(公告)日：2021-12-14
申请号：US17086398
申请日：2020-10-31
Applicant: Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) , Southwest Petroleum University
Inventor： Guorong Wang , Yang Tang , Xin Jing , Qingyou Liu , Shouwei Zhou , Xushen Li , Lin Zhong , Qingping Li , Yufa He , Zhong Li , Yanjun Li , Hexing Liu , Jianglin Zhu , Jiang Lu , Leizhen Wang
Abstract: The present invention relates to a combined crushing super-variable-diameter drill bit for natural gas hydrate exploitation, including a joint, an outer cylinder connected to the joint by thread, a nozzle I mounted in the outer cylinder, a mechanical locking mechanism, a blade telescoping mechanism, an end cap connected to the outer cylinder by thread, a seal ring IV mounted to the end cap, and a nozzle II mounted in the end cap by threaded connection. The present invention achieves integrated operation of conventional drilling and draw-back expanding, which can effectively solve the problems that the existing hydrate drill bit cannot drill a large borehole, cannot mechanically lock an extending position of the blade to stabilize the size of the borehole, and a single crushing method is inefficient.
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公开(公告)号：US12060958B2
公开(公告)日：2024-08-13
申请号：US18169145
申请日：2023-02-14
Applicant: Southwest Petroleum University
Inventor： Yang Tang , Yulin Zhang , Guorong Wang , Yufa He , Jianfei Wei , Jinhai Zhao , Zeliang Li , Jinzhong Wang , Wang Li , Wujun Tong , Jie Wang
IPC: F16L29/00 , E21B33/035 , E21B34/04 , E21B36/04 , E21B47/001 , F16L37/00 , F16L37/30 , F16L37/373 , F16L53/34 , F16L53/38
CPC classification number: F16L29/007 , E21B33/035 , E21B34/04 , E21B36/04 , E21B47/001 , F16L37/004 , F16L37/30 , F16L37/373 , F16L53/34 , F16L53/38
Abstract: A pure electric modular subsea test tree is provided, which includes a connect-disconnect device, wherein the first channel is formed in the connect-disconnect device; the connect-disconnect device is provided with a locking assembly and a connection drive mechanism for driving the locking assembly, and the first electrical connection plug is embedded in the connect-disconnect device, and the connection drive mechanism is electrically connected with the first electrical connection plug; a shear-seal assembly, wherein a second channel communicated with the first channel is formed in the shear-seal assembly; the shear-seal assembly includes at least one shear-seal device capable of plugging the second channel; a connection part is formed on the shear-seal assembly; a heating device is arranged at one end of the shear-seal device far from the connection part. The disclosure relates to a pure electric modular subsea test tree, which has fast response speed and high operation safety.
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14.发明授权公开(公告)号：US11542789B2
公开(公告)日：2023-01-03
申请号：US17537447
申请日：2021-11-29
Applicant: Southwest Petroleum University , Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang)
Inventor： Yang Tang , Peng Zhao , Guorong Wang , Jinhai Zhao , Qingyou Liu , Jinzhong Wang , Guangjie Yuan , Yufa He , Qingping Li , Xushen Li , Xiaoyu Fang , Zeliang Li , Xin Jing
Abstract: A cavity creation tool by crushing with multi-stage controllable water jet, it is used in natural gas hydrate development and mainly consists of an inner tube upper joint, an inner tube lower joint, an intermediate sleeve, an inner structure consisting of a coaxial throttle push rod, an outer layer sleeve, an outer layer structure consisting of a supporting ring, a jet head mounted to the intermediate sleeve and threading the outer layer sleeve, and a jet crushing structure consisting of a single-stage telescopic jet head and a two-stage telescopic jet head.
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