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公开(公告)号：US20210140244A1
公开(公告)日：2021-05-13
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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2.发明申请公开(公告)号：US20200072028A1
公开(公告)日：2020-03-05
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：US20210140243A1
公开(公告)日：2021-05-13
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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公开(公告)号：US20210079762A1
公开(公告)日：2021-03-18
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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公开(公告)号：US20230085283A1
公开(公告)日：2023-03-16
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
Abstract: A double-layer coiled tubing double-gradient drilling system, on the basis of conventional drilling equipment, includes a double-layer coiled tubing system, spacer 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 spacer 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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Patent Agency Ranking
6.发明申请公开(公告)号：US20200291754A1
公开(公告)日：2020-09-17
申请号：US16604109
申请日：2018-11-20
Applicant: SouthWest Petroleum University
Inventor： Jinzhou ZHAO , Na WEI , Haitao LI , Liehui ZHANG , Shouwei ZHOU , Qingping LI , Wantong SUN
Abstract: A hydrate solid-state fluidization mining method and system under an underbalanced reverse circulation condition are used for solid-state fluidization mining on a non-rock-forming weak-cementation natural gas hydrate layer in the ocean. Equipment includes a ground equipment system and an underwater equipment system. The construction procedure includes an earlier-stage construction process, pilot hole drilling construction process, reverse circulation jet fragmentation process, underbalanced reverse circulation fragment recovery process and silt backfilling process. Natural gas hydrates in the seafloor are mined through an underbalanced reverse circulation method. Problems such as shaft safety, production control and environmental risks faced by conventional natural gas hydrate mining methods such as depressurization, heat injection, agent injection and replacement are effectively solved. By using the method, the weak-cementation non-rock-forming natural gas hydrates in the seafloor can be mined in environment-friendly, efficient, safe and economical modes, more energy resources can be provided, and energy shortage dilemmas are solved.
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7.发明申请DEEPWATER DRILLING CONDITION BASED MARINE RISER MECHANICAL BEHAVIOR TEST SIMULATION SYSTEM AND TEST METHOD 有权基于深水钻井条件的海洋力学机械行为测试模拟系统及测试方法公开(公告)号：US20160032704A1
公开(公告)日：2016-02-04
申请号：US14432486
申请日：2014-01-06
Applicant: Qingyou LIU , Liangjie MAO , Shouwei ZHOU , SOUTHWEST PETROLEUM UNIVERSITY
Inventor： Qingyou LIU , Shouwei ZHOU , Liangjie MAO
CPC classification number: E21B44/00 , E21B17/01 , E21B41/0007
Abstract: The present invention discloses a deepwater drilling condition based marine riser mechanical behavior test simulation system. An upper three-component dynamometer, an tipper connecting structure, a marine riser, a lower connecting structure and a lower three-component dynamometer are connected between an upper trailer connecting plate and a lower trailer connecting plate in sequence. The invention further discloses a test method. The present invention has the advantages that the mechanical behavior of the marine riser under deepwater drilling condition and marine environment coupling effect can be simulated comprehensively and accurately, and the apparatus can simulate ocean current environment, apply top tension to the marine riser, simulate circulation of internal drilling fluids at different current rates, simulate rotation of the drill stem at different rotational speeds and apply different drill pressures.
Abstract translation: 本发明公开了一种基于深水钻井条件的船舶立管机械行为试验模拟系统。 上部三分量测力计，自卸车连接结构，船用立管，下连接结构和下三部测力计依次连接在上拖车连接板和下拖车连接板之间。 本发明还公开了一种测试方法。 本发明的优点在于，可以全面，准确地模拟海底立管在深水钻井条件下的机械性能和海洋环境耦合效应，该装置可以模拟海洋环境，对海洋立管施加顶部张力，模拟海洋提升管的循环 内部钻井液以不同的电流速率，以不同的转速模拟钻杆的旋转并施加不同的钻压。
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8.发明申请公开(公告)号：US20200300066A1
公开(公告)日：2020-09-24
申请号：US16604106
申请日：2018-11-20
Applicant: SouthWest Petroleum University
Inventor： Jinzhou ZHAO , Na WEI , Haitao LI , Liehui ZHANG , Shouwei ZHOU , Qingping LI , Wantong SUN
Abstract: A natural gas hydrate solid-state fluidization mining method and system under an underbalanced positive circulation condition, used for performing solid-state fluidization mining on a non-rock-forming weak-cementation natural gas hydrate layer in the ocean. Equipment includes a ground equipment system and an underwater equipment system. The construction procedure has an earlier-stage construction process, underbalanced hydrate solid-state fluidization mining construction process and silt backfilling process. Natural gas hydrates in the seafloor are mined through an underbalanced positive circulation method, and problems such as shaft safety, production control and environmental risks faced by conventional natural gas hydrate mining methods such as depressurization, heat injection, agent injection and replacement are effectively solved. By using the natural gas hydrate solid-state fluidization mining method weak-cementation non-rock-forming natural gas hydrates in the seafloor can be mined in environment-friendly, efficient, safe and economical modes, more energy resources are provided, and energy shortage dilemmas are solved.
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公开(公告)号：US20200290052A1
公开(公告)日：2020-09-17
申请号：US16604100
申请日：2018-11-20
Applicant: SouthWest Petroleum University
Inventor： Jinzhou ZHAO , Na WEI , Chunquan LIU , Kaisong WU , Liehui ZHANG , Shouwei ZHOU , Haitao LI , Wantong SUN
Abstract: A crushing system for large-size natural gas hydrate rock samples, which mainly includes a crushing and stirring control subsystem, crushing and stirring execution subsystem and hydrate preparation subsystem. Full automatic control to parameter acquisition and experimental process is achieved by utilizing modern automation technology, including the function of automatically crushing the large-size natural gas hydrate rock samples and also monitoring, collecting and storing the drilling pressure, the torque and the internal furnace pressure and temperature parameters during the crushing process in real time, to provide reliable guarantee for the follow-up researches on crushing mechanism, crushing efficiency, drilling parameter optimization, rock crushing ability evaluation of a crushing tool and the like of the large-size natural gas hydrate rock samples and necessary experimental verification means for optimization of on-site exploiting construction conditions of natural gas hydrate.
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10.发明申请公开(公告)号：US20200040710A1
公开(公告)日：2020-02-06
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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