公开(公告)号：US11946374B2

公开(公告)日：2024-04-02

申请号：US18347179

申请日：2023-07-05

Applicant: Southwest Petroleum University

Inventor： Yang Tang ,  Miantao Guan ,  Yulin Zhang ,  Peng Zhao ,  Guorong Wang ,  Jinhai Zhao ,  Qingyou Liu ,  Jinzhong Wang ,  Xiang Gao ,  Yufa He ,  Hu Deng ,  Liming Fan ,  Rutao Ma

IPC: E21B7/06 ,  E21B23/00 ,  E21B23/04

CPC classification number: E21B7/061 ,  E21B23/006 ,  E21B23/0411

Abstract: The disclosure relates to an omni-directional horizontally oriented deflecting tool for a coiled tubing, which includes an inner central pipe, an outer central pipe, a conical outer cylinder, a piston outer cylinder, an anchoring mechanism, a sealing mechanism, a reversing mechanism and a steering mechanism. The anchoring mechanism includes a cone, an O-shaped sealing ring I, a cone spring, a slip, a slip spring, a slip seat, a claw I and a pin shaft I, and the sealing mechanism includes a piston, an O-shaped sealing ring II, a claw II, a pin shaft II, an upper rubber cylinder seat, a rubber cylinder, a connecting cylinder, a lower rubber cylinder seat and a gasket.

公开(公告)号：US11732551B1

公开(公告)日：2023-08-22

申请号：US18306270

申请日：2023-04-25

Applicant: Southwest Petroleum University

Inventor： Yang Tang ,  Na Xie ,  Minghai Zhou ,  Jinhai Zhao ,  Guangjie Yuan ,  Guohai Yuan ,  Jinzhong Wang ,  Chenglin Wang ,  Xiang Gao ,  Guorong Wang ,  Fu Deng ,  Liming Fan ,  Rutao Ma

IPC: E21B34/06 ,  E21B34/14

CPC classification number: E21B34/066 ,  E21B34/14 ,  E21B2200/05

Abstract: A fully electrically controlled intelligent subsurface safety valve is provided, including an upper joint, a lower joint, a magnetic switch, an upper electromagnetic suction module, a central flow pipe, a magnetic piston ring, a lower electromagnetic suction module, a rebound flap valve mechanism, a displacement sensor, a temperature and pressure sensor, a flow sensor, and a power communication composite cable connector. With the magnetic assisted reset of the two electromagnetic suction modules, the safety valve closes more quickly in emergency situations, improving the reliability of the safety valve. By using a magnetic excitation switch, the safety valve can be quickly opened and closed, and the open or close state can be maintained independently, saving energy consumption in the control system. The present disclosure can better meet the needs of onshore and offshore oil and gas production operations and gas storage operations.

公开(公告)号：US11506033B2

公开(公告)日：2022-11-22

申请号：US17566556

申请日：2021-12-30

Applicant: Southwest Petroleum University

Inventor： Yang Tang ,  Haoyu Xiong ,  Guorong Wang ,  Jinzhong Wang ,  Jinhai Zhao ,  Guangjie Yuan ,  Zhidong Zhang ,  Xushen Li ,  Yufa He ,  Jie Wu ,  Xin Jing ,  Peng Zhao ,  Zeliang Li

IPC: E21B43/12 ,  E21B43/04 ,  E21B43/38

Abstract: Disclosed is an oil extraction and gas production method capable of in-situ sand control and removal by downhole hydraulic lift achieved by downhole oil extraction and gas production system and ground oil extraction and gas production system. The downhole systems mainly comprises a double-layer tube, a double-layer tube reducing joint, a double-layer tube packer, a hydrodynamic turbine motor, a sludge screw pump, a soil-sand separator and a negative pressure absorber; the ground system comprises a power fluid pressurizing module and a mix fluid treatment module. The present application lowers the difficulty of pumping and lifting downhole formation fluid; achieves downhole and in-situ sand control and sand discharge, alleviates the blockage and erosion of sand particles on equipments and reduces energy consumption; decreases the production cost and improves the operation efficiency, therefore is suitable for oil extraction and gas production in high sand content wells.

公开(公告)号：US11466805B2

公开(公告)日：2022-10-11

申请号：US17686341

申请日：2022-03-03

Applicant: Southwest Petroleum University

Inventor： Yang Tang ,  Yuan Wang ,  Haoyu Xiong ,  Jinzhong Wang ,  Mingbo Wang ,  Wen Yang ,  Guangjie Yuan ,  Xiang Gao ,  Jie Wu ,  Shouhong Ji ,  Guorong Wang ,  Hao Hou ,  Meng Li ,  Li Gu

IPC: F16L55/10 ,  F16L55/128 ,  F16L55/44 ,  F16L55/18

Abstract: The invention discloses an intelligent plugging robot and method thereof for rerouting, maintaining and repairing long-distance pipelines. The intelligent plugging robot includes a through-flow governor, a flow-blocking mechanism and a telescopic mechanism, wherein the through-flow governor and the flow-blocking mechanism are symmetrically distributed on both sides of the device. The invention can realize remote, fast, safe and accurate plugging during maintaining and repairing the long-distance pipeline, wherein the telescopic mechanism cooperates with the flow-blocking mechanism to move autonomously in the pipe to achieve precise positioning, the through-flow governor can not only adjust the plugging robot but also ensure the cleaning of the pipe wall, make it stable contact with the signal transceiver, and realize the stable communication between the robot in the pipe and the remote monitoring machine.

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

IPC: E21B7/04 ,  E21B7/128 ,  E21B17/18 ,  E21B43/01 ,  E21B43/36 ,  E21B41/00

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.

公开(公告)号：US10550647B2

公开(公告)日：2020-02-04

申请号：US16066060

申请日：2017-09-01

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Yang Tang ,  Qingyou Liu ,  Guorong Wang ,  Wang Li

IPC: E21B17/02 ,  H01R13/62 ,  H01R43/26 ,  H01R13/631

Abstract: The present invention discloses a downhole automatic connection device for an oil pipe internal communication cable for intelligent layered water injection. The connection device comprises a water injection pipe string in which a cable lowering mechanism is arranged. The cable lowering mechanism comprises a cable, a cable female connector, a motor and load-bearing blades. The cable female connector comprises a female connector shell, a jack insulating plate and an electromagnet. A cable male connector is also fixedly arranged in the water injection pipe string. The cable male connector comprises a male connector shell, a pin insulating plate and an NdFeB magnet. A pin wire welding point is electrically connected with a sensor on an intelligent water distributor. A lead arranged in the pin insulating plate is connected between a pin and the pin wire welding point. The present invention also discloses a connection method.

公开(公告)号：US11434727B2

公开(公告)日：2022-09-06

申请号：US17537437

申请日：2021-11-29

Applicant: Southwest Petroleum University

Inventor： Yang Tang ,  Zeliang Li ,  Guorong Wang ,  Qingyou Liu ,  Jinhai Zhao ,  Guangjie Yuan ,  Jinzhong Wang ,  Yufa He ,  Qingping Li ,  Chuanhua Ma ,  Yuan Huang

IPC: E21B41/00 ,  E21B43/40 ,  E21B43/34 ,  E21B43/38

Abstract: An in situ exploitation-separation-backfilling integration apparatus for natural gas hydrates is disclosed, consisting of a cyclonic suction device for coarse fraction, a jet flow device for sand discharge and a spiral cyclone device for fine fraction. The cyclonic suction device for coarse fraction is provided with a vortex trough and a cyclonic auxiliary flow channel; the jet flow device for sand discharge mainly consists of a sand discharge sliding sleeve, a sand discharge jet cylinder and a spring, wherein the sand discharge sliding sleeve can control the spraying out of hydraulic fluid and it is provided with a sand discharge butting head; inside the spiral cyclone device for fine fraction is a tapered structure and its upper portion is provided with a centering bracket.

公开(公告)号：US11788664B1

公开(公告)日：2023-10-17

申请号：US18323989

申请日：2023-05-25

Applicant: Southwest Petroleum University

Inventor： Yang Tang ,  Wudi Zhang ,  Shouhong Ji ,  Jinzhong Wang ,  Mingbo Wang ,  Chenglin Wang ,  Qiang Wang ,  Guorong Wang ,  Li Gu ,  Wei Zhang ,  Junkai Zhu

IPC: F16L55/18 ,  F16L55/32 ,  F16L55/44 ,  F16L101/60

CPC classification number: F16L55/32 ,  F16L55/44 ,  F16L2101/60

Abstract: An intelligent maintenance and repair robot for small diameter and small flow oil and gas pipelines, including a frame, a speed control mechanism, a braking mechanism, an anchoring mechanism, and a sealing mechanism; the speed control mechanism is composed of a motor, rotor, etc; the braking mechanism is composed of a braking rubber cylinder and a first extrusion ring; the anchoring mechanism is composed of a rubber conical cylinder, slips, etc; and the sealing mechanism is composed of a sealing rubber cylinder and a second extrusion ring. The second extrusion ring is driven by a hydraulic rod to press the sealing rubber cylinder, causing it to expand and block the pipe wall to achieve sealing. The intelligent maintenance and repair robot inside the pipeline has the characteristics of good speed control response, wide speed range, strong ability to pass bends, stable braking process, and high sealing reliability.

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.

公开(公告)号：US11746640B2

公开(公告)日：2023-09-05

申请号：US17676250

申请日：2022-02-21

Applicant: Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) ,  Southwest Petroleum University

Inventor： Yang Tang ,  Zeliang Li ,  Xushen Li ,  Jiang Lu ,  Xiaoyu Fang ,  Guorong Wang ,  Pu Yang ,  Jinhai Zhao ,  Xiaolong Ma ,  Dongqing Xia ,  Lin Zhong ,  Yufa He ,  Qingping Li ,  Yanjun Li ,  Hexing Liu ,  Peng Zhao

IPC: E21B43/34 ,  E21B43/36 ,  E21B43/01

CPC classification number: E21B43/36 ,  E21B43/01 ,  E21B43/35

Abstract: The disclosure discloses a solid fluidization tubular separator for marine natural gas hydrate, which includes a first separator and a second separator, wherein the first separator includes the first separation sleeve, the power liquid pipe, the swirl baffle, the recovery mechanism and the sand discharge mechanism. After the hydrate is sucked into the first separation sleeve to generate a circumferential velocity, so that the mud and sand with high density are separated to the pipe wall of the first separation sleeve, and the mud and sand separated to the pipe wall are settled down from the gap between the swirl baffle and the pipe wall along the pipe wall. The hydrate swirl flows into the recovery mechanism, and then leaves the first separation sleeve and enters the second separator, so as to realize the separation of mud and sand and natural gas hydrate.