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公开(公告)号：US11598180B2
公开(公告)日：2023-03-07
申请号：US16963715
申请日：2018-05-21
Applicant: SouthWest Petroleum University
Inventor： Guorong Wang , Shouwei Zhou , Qingyou Liu , Qingping Li , Qiang Fu , Yufa He , Pu Yang , Lin Zhong
Abstract: The invention discloses an experimental device for natural gas hydrate solid-state fluidized mining and crushing, the experimental device comprising a power liquid supply module, a hydrate suction module, a pipeline conveying module, a hydrate fluidized crushing module, a secondary processing module and an experimental data information collection and processing module. An experimental method for the experimental device comprises: turning on the power liquid supply module, the hydrate suction module, the pipeline conveying module, the hydrate fluidized crushing module and the secondary processing module, and collecting pressure and flow data at a plurality of locations by the experimental data information collection and processing module. The present invention has the following beneficial effects: a jet solid-state fluidized mining process is simulated, and a plurality of pressure and flow detection points and sampling ports for crushed samples are provided at the same time so as to facilitate parameter collection; a plurality of component parameters are flexibly variable, including changing a drag-back speed of a moving slider, shape parameters of jet nozzles, and a pressure and flow of a power liquid; a spray head is designed to simplify the experimental device, and a dynamic process of jet crushing may be observed from a side surface of an experimental tank.
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2.发明授权公开(公告)号：US10822927B2
公开(公告)日：2020-11-03
申请号：US16601562
申请日：2019-10-14
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Yang Tang , Guorong Wang , Shouwei Zhou , Qingyou Liu , Lin Zhong , Wang Li , Qingping Li , Qiang Fu , Yufa He , Chuan Wang , Leizhen Wang
Abstract: Disclosed is a device for solid-state fluidized mining of natural gas hydrates in a shallow seabed, including: a sea surface support system, a pipeline delivery system, and an undersea drilling system. The sea surface support system includes a hydrate drilling vessel floating on seawater. The pipeline delivery system includes a continuous double-layer oil pipe, a recyclable conduit installed in a sediment cover, an open-hole steering packer installed outside the recyclable conduit. The undersea drilling system includes a hydrate slurry separator, a single screw pump, a hydraulic motor, a jet head and a differential pressure sliding sleeve close to the hydrate drill bit. The present invention has the following beneficial effects. The device achieves a multi-directionally horizontal drilling and production in the hydrate reservoir with a single well head, improving the drilling efficiency and single well production.
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公开(公告)号：US10655436B2
公开(公告)日：2020-05-19
申请号：US16063703
申请日：2017-04-24
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Qingyou Liu , Guorong Wang , Shouwei Zhou , Leizhen Wang , Rong Huang , Qingping Li , Qiang Fu
Abstract: The present invention discloses a device for solid-state fluidization mining of seabed shallow layer non-diagenetic natural gas hydrates. The device comprises a hydraulic jet nozzle set, a coiled tubing, a hydrate collecting ship arranged on the sea surface, a transfer station arranged in sea water and a riser arranged in a seabed surface layer. A guide seat is arranged in the riser. The hydraulic jet nozzle set is arranged in the guide seat. A delivery pipe connected with the transfer station sleeves a nozzle body. An opening is formed in a position where the delivery pipe is in contact with the nozzle body. The transfer station is connected with the hydrate collecting ship. The present invention further discloses a method for collecting seabed shallow layer non-diagenetic hydrates.
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公开(公告)号：US11773653B2
公开(公告)日：2023-10-03
申请号：US17044125
申请日：2019-12-23
Applicant: SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Guorong Wang , Lin Zhong , Qingyou Liu , Shouwei Zhou , Xingyong Yu , Zhong Li , Yang Tang , Qiang Fu , Xin Huang , Yanjun Li , Hexing Liu
IPC: E21B7/12 , E21B17/01 , E21B17/08 , E21B33/076
CPC classification number: E21B7/12 , E21B17/01 , E21B17/085 , E21B33/076
Abstract: A double-layer coiled tubing double-gradient drilling system, on the basis of conventional drilling equipment, includes a double-layer coiled tubing system, separating fluid, a downhole lifting pump system, throttling control systems and a data monitoring system. Power fluid enters an annular space of the tubing through an adapter, passes through a downhole lifting pump, enters an inner pipe through a bridge channel, and enters the bottom hole through the drill bit. Return fluid enters an annular channel of the tubing through a recovery hole, then enters the inner pipe through the bridge channel and enters the lifting pump, and then enters a solid control system through the adapter and the control systems in sequence. Gradient control of the bottom hole pressure is realized through monitoring of the separating fluid and control of the drilling pump unit and throttling control systems. The problem of narrow safe drilling density window is solved.
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