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公开(公告)号：US11041344B1
公开(公告)日：2021-06-22
申请号：US16988702
申请日：2020-08-09
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Yongping Jin , Xiaojun Huang
Abstract: There is provided a wireline coring recovery system of a seafloor drilling rig, including: a winch, a rope, a submersible tension sensor, a cover, a main shaft and a catcher. One end of the rope is wound on the winch, and the other end of the rope is connected to an upper end of the catcher after the rope passes over a first pulley provided below the submersible tension sensor and then through a tapered hole on the cover. The catcher is provided in a center hole of the main shaft. The present application further provides a method of using the wireline coring recovery system. By the cooperation of the compression rod skewed teeth, the first rotating core skewed teeth, the second rotating core skewed teeth and the compression spring, the inner core barrel is readily recovered or released.
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公开(公告)号：US10947800B2
公开(公告)日：2021-03-16
申请号：US16833584
申请日：2020-03-28
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Xiaojun Huang , Yongping Jin
Abstract: The present disclosure discloses a pressure-retaining cap screwing and unscrewing device for a marine natural gas hydrate pressure-retaining rock-core barrel, wherein it comprises a cap-unscrewing chuck, a support cylinder, a pressure-retaining cap screwing and unscrewing head, a spring, a screwing and unscrewing shaft, and a pressure-retaining cap screwing and unscrewing sleeve, a reducer and a motor; an input shaft of the reducer is connected to the motor, an output shaft of the reducer is the screwing and unscrewing shaft which is a tubular structure with a plurality of guide holes provided on a side wall thereof. The device is simple in structure, compact, light in weight, and convenient to control, and the pressure-retaining cap can be discarded.
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公开(公告)号：US11408227B2
公开(公告)日：2022-08-09
申请号：US17485739
申请日：2021-09-27
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Buyan Wan , Yongping Jin , Fenfei Peng , Jialiang Wang , Huan Liu
Abstract: A horizontal drilling machine with an impact device, including a support frame, an armored cable, a cable-straightening mechanism, a cable-feeding mechanism, a power head, a drill pipe, a rotating chuck, a damper, a fishing device with the impact device, a core tube and a thrust cylinder. One end of the thrust cylinder is hinged with the support frame, and the other end of the thrust cylinder is connected to the power head. The power head is arranged on a slid rail of the support frame. An active drill pipe of the power head is connected to the drill pipe. An end of the armored cable is connected to a control system, and the other end is connected to the fishing device in the drill pipe. A fishing head of the fishing device is connected to a spearhead of the core tube.
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4.发明授权公开(公告)号：US10704350B2
公开(公告)日：2020-07-07
申请号：US16731068
申请日：2019-12-31
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Yongping Jin , Xiaojun Huang , Jialiang Wang
Abstract: A process for drilling natural gas hydrates. A drilling rig is placed in seawater. A suction-press core drilling mode is adopted in a soft sediment formation, a suction-rotary core drilling mode is adopted in a medium-hard sediment formation, or a pumping direction circle-rotary core drilling mode is adopted in a hard sediment formation. A core is extracted. An inner tube for wireline pressure coring is recovered. A holding seal cap is tightened, and the inner tube is stored in a pipe storage rack. Punching is carried out. An inner tube for wireline pressure coring which is hollow is captured to disengage the holding seal cap. The inner tube is lowered. A drill rod is added. The punching is carried out again. The above steps are repeated until the core drilling reaches a given drilling depth. The drill rod, the drill and the corer are recovered.
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公开(公告)号：US12181382B2
公开(公告)日：2024-12-31
申请号：US17941235
申请日：2022-09-09
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping Jin , Xiaobin He , Youduo Peng , Ping Liu
Abstract: A micro core-drilling testing system for high-pressure environment, including: a pressure chamber, a micro core-drilling testing platform and a control device. The micro core-drilling testing platform includes a lower tray, a middle tray, a hydraulic system, a stroke cylinder, a rock sample plate, a rock sample block, a pressure compensation device and a drilling rig. The drilling rig is configured to carry out core-drilling operation. The hydraulic system is configured to provide power for the drilling rig. The pressure compensation device is configured to balance the pressure inside the pressure chamber and the hydraulic system.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11812732B2
公开(公告)日：2023-11-14
申请号：US17148988
申请日：2021-01-14
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping Jin , Guangping Liu , Youduo Peng , Buyan Wan , Ping Liu , Kun Xie
IPC: A01K79/00
CPC classification number: A01K79/00
Abstract: A suction sampler system for in situ collection of deep-sea floor organisms includes a pressure-retaining cylinder, a pressure compensation device, a cone component, semiconductor refrigeration components, a circuit cylinder and a collection cylinder. Two ends of the pressure-retaining cylinder are respectively equipped with a first and second seal mechanisms, and the cone component is arranged in the pressure-retaining cylinder. The pressure compensation device is connected to the pressure-retaining cylinder through a high-pressure pipe. The semiconductor refrigeration components are arranged outside the pressure-retaining cylinder. The circuit cylinder is equipped with a power supply and a controller, and the semiconductor refrigeration components are connected to the controller. A pressure sensor and a temperature sensor are arranged inside the pressure-retaining cylinder, and respectively connected to the controller. The collection cylinder communicates with the valve hole of the second seal mechanism through a pipeline.
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7.发明授权公开(公告)号：US11408239B2
公开(公告)日：2022-08-09
申请号：US17485861
申请日：2021-09-27
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Buyan Wan , Yongping Jin , Fenfei Peng , Jialiang Wang , Huan Liu
Abstract: A long-distance core drilling method suitable for a horizontal geological core drilling rig. (1) An active drill rod is connected to a drill rod, which is connected to a wireline-coring outer-tube drilling tool. (2) A steel-pipe string is connected to a fishing device, and the fishing device is connected to a spearhead on a core tube, which is placed to a designated position through a pipe-feeding mechanism. (3) A washing pump is started. (4) A core drilling is carried out. (5) A core is pulled out. (6) The steel-pipe string and the fishing device are reconnected. (7) The core tube is salvaged. (8) The core tube and drill pipe are replaced. (9) A hole is swept. (10) Steps (1)-(9) are repeated until the hole is drilled to a designated depth. (11) The core tube and the wireline-coring outer-tube drilling tool are recovered.
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公开(公告)号：US11326398B2
公开(公告)日：2022-05-10
申请号：US17153578
申请日：2021-01-20
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping Jin , Liang Liu , Youduo Peng , Buyan Wan , Jun Gong , Jian Yan
Abstract: The present disclosure provides a portable seafloor drill rig for a submersible for multi-point core drilling, including a power head, a reduction gear box, an emergency jettison device, a drilling tool, and a temperature and pressure-retaining device. a water supply connector and the power head are arrange on a top plate of the reduction gear box. An output shaft of the power head is connected to an input shaft of the reduction gear box, and an output shaft of the reduction gear box is provided with a central hole, which is in communication with a water inlet hole of the water supply connector. An output shaft of the reduction gear box is connected to the emergency jettison device, and the temperature and pressure-retaining device can perform temperature and pressure-retaining storage of the core drilled by the drilling tool.
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公开(公告)号：US10927606B2
公开(公告)日：2021-02-23
申请号：US16731060
申请日：2019-12-31
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Yongping Jin , Xiaojun Huang , Jialiang Wang
Abstract: Disclosed is a sediment core-drilling process for a submarine wire-line coring drill rig, including 1) lowering the drill rig; 2) drilling in a pressure-suction mode; 3) drilling in a rotation-pressure-suction mode; 4) cutting sediment cores; 5) recovering a core inner tube; 6) cleaning bottom of hole; 7) punching before adding a drill pipe; 8) lowering another core inner tube; 9) adding the drill pipe; 10) punching after adding the drill pipe; 11) repeating the steps 2)-10) until a given hole depth is reached; 12) recovering the drill pipe and a wire-line coring outer tube drilling tool; 13) recovering the submarine wire-line coring drill rig. The core-drilling process provided herein is suited to working conditions without mud lubrication and mud protection for hole wall. This invention has advantages of low disturbance and high efficiency in coring and is suitable for remote operation.
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公开(公告)号：US12084933B2
公开(公告)日：2024-09-10
申请号：US18457150
申请日：2023-08-28
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping Jin , Zhaodong Tong , Youduo Peng
Abstract: A drilling and sampling device applied to a seafloor tracked vehicle, including a slide seat, a positioning electromagnet, a pipe-replacing cylinder, a dial claw, a plurality of clamping assemblies, a plurality of sampling drill pipes, a drill pipe rack, a frame, a thrust cylinder, a pipe-releasing assembly, a guide rod, a drive pipe, a power head, and a pipe-replacing disc. The guide rod and the thrust cylinder are fixedly arranged on the frame. The slide seat is in clearance fit with the guide rod. A piston rod end of the thrust cylinder is hingedly connected to the slide seat. The power head is fixedly arranged on the slide seat. The drive pipe is arranged at an output end of the power head, and is coaxially screwed with the plurality of sampling drill pipes. The dial claw is slidably arranged in the arc guide groove.
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