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    Pipeline robot capable of steering actively
    1.
    发明授权
    Pipeline robot capable of steering actively 有权

    公开(公告)号：US10690281B2

    公开(公告)日：2020-06-23

    申请号：US16062117

    申请日：2016-07-18

    Applicant: Chengdu University of Technology ,  SOUTHWEST PETROLEUM UNIVERSITY

    Inventor： Qingyou Liu ,  Haiyan Zhu ,  Xu Luo ,  Guorong Wang

    IPC: F16L55/34 ,  F16L55/32 ,  B25J9/10 ,  B25J9/16 ,  B25J18/02 ,  B25J11/00

    Abstract: A pipeline robot capable of steering actively comprises at least two driving knuckles and at least one steering knuckle. Every two adjacent driving knuckles are connected by the steering knuckle. A front end cover is fixed on the front end surface of the driving knuckle at the most front end. A sensor is mounted in the center of the front end cover. A rear end cover is fixed on the rear end surface of the driving knuckle at the rearmost end. A universal spherical hinge is arranged in the center of the rear end cover. Each driving knuckle comprises a main frame, driving mechanisms and telescopic mechanisms; the telescopic mechanisms are mounted in the main frame, and capable of causing contraction of the driving mechanisms into the main frame. The steering knuckle can drive the front driving knuckle connected thereto to steer.

    Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method therefor
    2.
    发明授权
    Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method therefor 有权

    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.

    Experimental device and experimental method for natural gas hydrate solid-state fluidized mining and crushing
    3.
    发明授权
    Experimental device and experimental method for natural gas hydrate solid-state fluidized mining and crushing 有权

    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

    IPC: E21B41/00 ,  G01N1/28 ,  B02C19/06 ,  B04C9/00 ,  B01D21/26 ,  B02C23/10 ,  E21B43/01 ,  G01N1/00

    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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