公开(公告)号：US09476292B2

公开(公告)日：2016-10-25

申请号：US14432486

申请日：2014-01-06

Applicant: SOUTHWEST PETROLEUM UNIVERSITY ,  Qingyou Liu ,  Shouwei Zhou ,  Liangjie Mao

Inventor： Qingyou Liu ,  Shouwei Zhou ,  Liangjie Mao

IPC: G01N17/00 ,  E21B44/00 ,  E21B17/01 ,  E21B41/00

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 upper 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，上部连接结构，海洋立管，下部连接结构和下部三分量测力计依次连接在上部拖车连接板和下部拖车连接板之间。 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。

公开(公告)号：US12060973B2

公开(公告)日：2024-08-13

申请号：US17372414

申请日：2021-07-09

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Jianguo Zhao ,  Guorong Wang ,  Qingyou Liu ,  Shuo Han ,  Run Dong ,  Jiliang Dai

IPC: F16N31/00 ,  E21B23/00 ,  F16L55/26 ,  F16L101/00 ,  F16N29/00 ,  F17D5/00

CPC classification number: F16N31/00 ,  F16N29/00 ,  F17D5/005 ,  E21B23/001 ,  F16L55/26 ,  F16L2101/00 ,  F16N2210/00 ,  F16N2230/02 ,  F16N2250/00 ,  F16N2270/00 ,  F16N2280/02

Abstract: A system for pumping lubricant in a gas transportation pipeline includes a pipeline robot and a control terminal system. The pipeline robot includes a lubricant position detection, module, a lubricant pumping module, an electro-hydraulic control system, a data acquisition and processing system, and a lubricant sucking port. The location at which the lubricant deposits can be detected online, and the lubricant staving in the gas transportation pipeline can be removed in real time. The system is highly automatic and efficient. Resistance against the natural as transportation is reduced effectively, the efficiency of transporting the natural gas is improved, and safety of transporting the natural gas is ensured.

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：US20230100604A1

公开(公告)日：2023-03-30

申请号：US17935692

申请日：2022-09-27

Applicant: Southwest Petroleum University

Inventor： Lin Zhong ,  Guorong Wang ,  Qingyou Liu ,  Gang Wei ,  Xia He ,  Linyan Chen ,  Gang Hu ,  Chuan Wang ,  Zheng Zhang ,  Zhichao Li ,  Zixuan Wang ,  Xiaolong Wu

IPC: C10M107/00 ,  E21B17/10 ,  B23K26/352

Abstract: A textured surface of oil and gas equipment includes a first substrate, an antiwear coating, and a second substrate, and further includes a texture, where the texture includes a first texture and/or a second texture; the first substrate and the second substrate are capable of moving relative to each other when operating, the first texture is arranged on a surface of the first substrate that is in contact with the antiwear coating, the second texture is arranged on a surface of the antiwear coating that is in contact with the second substrate. A method for machining the textured surface of oil and gas equipment is provided, which improves various performances of the oil and gas equipment such as antifriction, wear resistance, and corrosion resistance by combining a coating with a texture, so as to prolong the service life of the oil and gas equipment, increase oil and gas production efficiency.

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

IPC: E21B7/18 ,  E21B41/00 ,  E21B43/01

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.

公开(公告)号：US10590708B2

公开(公告)日：2020-03-17

申请号：US15744891

申请日：2017-02-27

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Jun Liu ,  Xiaoqiang Guo ,  Qingyou Liu ,  Guorong Wang ,  Haiyan Zhu ,  Xian Liu

IPC: E21B43/116 ,  E21B7/06 ,  E21B43/117 ,  E21B47/12

Abstract: A mechanics experiment system for a perforated string in underground perforating blasting of an oil-gas well. The system includes an experiment water pool, a perforated string arranged in the experiment water pool, a signal amplifier, an A/D converter and a computer. The signal amplifier, the A/D converter and the computer are arranged outside the experiment water pool and are sequentially electrically connected; the perforated string includes an oil pipe, a packing tube, a sleeve, an acceleration testing short joint A, a damper, an acceleration testing short joint B and a perforating gun which are sequentially connected from top to bottom.

公开(公告)号：US11255745B2

公开(公告)日：2022-02-22

申请号：US16982439

申请日：2019-04-26

Applicant: SOUTHWEST PETROLEUM UNIVERSITY ,  Chengdu University of Technology

Inventor： Jun Liu ,  Xiaoqiang Guo ,  Qingyou Liu ,  Yufa He ,  Anchao Wei ,  Linlin Zeng ,  Jianxun Wang

IPC: G01M7/02

Abstract: The present invention discloses a testing device and method for simulating longitudinal-transverse-torsional coupled nonlinear vibration of a drill string in deep-water riser-free drilling. The testing device comprises a pool (1), a motor (2) and a hook load adjustment device (3), wherein a guide wheel (4) is provided on the top of the pool (1); a support seat A (5) and a support seat B (6) are fixed on the bottom surface of the pool (1); an organic glass tube (8) is fixed between the support seat A (5) and the support seat B (6); a casing (9) is respectively provided on the top surface of the support seat B (6) and the top surface of the trailer (7); the left end of the plastic tube (10) extends into the organic glass tube (8) along the axis of the organic glass tube (8). The present invention further discloses a simulation method. The present invention has the following beneficial effects: the structure is compact; the longitudinal-transverse-torsion coupled vibration responses of the drill string under different rotating speeds of the drill string, ocean flow rates, flow rates of the drilling fluid, torsional excitations and longitudinal excitations at the bottom of the formation section is simulated, thereby filling up the blank in the riser-free drilling system.

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

IPC: E21B10/32 ,  E21B10/43 ,  E21B41/00 ,  E21B10/18 ,  E21B10/16 ,  E21B10/25

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.

公开(公告)号：US10233694B2

公开(公告)日：2019-03-19

申请号：US15323104

申请日：2015-06-23

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Wei Li ,  Hongxiang Lei ,  Qingyou Liu ,  Shihong Xiao ,  Xu Si ,  Tieshan Zhang ,  Qing Tu ,  Xiao Tan ,  Fanyao Jin ,  Xingming Wang ,  Yuan Zhong ,  Hang Li ,  Jianchuan Wu ,  Dengwei Li

IPC: E21B7/06 ,  E21B7/04 ,  E21B34/06

Abstract: A rotation guidance apparatus belonging to the technical field of oil drilling equipment. An end part of a lower connector has a ball-socketed ball-joint rod, and a drill bit is connected to the ball-socketed ball-joint rod. Several circumferentially and evenly distributed piston holes are provided in a side wall of the lower connector, wherein a piston matches each piston hole and a piston rod connected to the piston is movably connected to the ball-socketed ball-joint rod. An eccentrically-placed valve core is connected to a controller provided in an upper connector, wherein a working face of the eccentrically-placed valve core is opposite to the piston holes and rotation of the eccentrically-placed valve core makes the pistons in the piston holes move to control the rotation guidance of the ball-socketed ball-joint rod.

公开(公告)号：US09316340B2

公开(公告)日：2016-04-19

申请号：US14432485

申请日：2012-12-08

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Qingyou Liu ,  Tao Ren ,  Yonghua Chen

IPC: F16L55/32

CPC classification number: F16L55/32

Abstract: An actively driven spiral pipeline robot is disclosed, comprising: a body, a power device, a driving shaft, an axle, a driving wheel carrier mounted at one end of the body, and a variable diameter mechanism disposed on the driving wheel carrier. The axle is disposed on the variable diameter mechanism. A driving wheel is fixedly mounted on the axle. The driving shaft and the axle are connected via a connector. The driving shaft is further connected with an output shaft of the power device via a transmission device. The present invention has following beneficial effects: a scope of application of the robot is expanded, an operation is stable, and an axial force is large. In addition, an axial position of the robot is adjusted by controlling an operation of the driving wheel, and an adjustment precision is high.

Abstract translation: 公开了一种主动螺旋管道机器人，包括：主体，动力装置，驱动轴，轴，安装在主体一端的驱动轮架，以及设置在驱动轮架上的可变直径机构。 轴设置在可变直径机构上。 驱动轮固定安装在轴上。 驱动轴和轴通过连接器连接。 驱动轴通过传动装置进一步与动力装置的输出轴连接。 本发明具有以下有益效果：机器人的应用范围扩大，操作稳定，轴向力大。 此外，通过控制驱动轮的操作来调节机器人的轴向位置，并且调整精度高。