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

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

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：US20190376347A1

公开(公告)日：2019-12-12

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 ,  H01R13/631 ,  H01R43/26

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：US20240003473A1

公开(公告)日：2024-01-04

申请号：US18169145

申请日：2023-02-14

Applicant: Southwest Petroleum University

Inventor： Yang TANG ,  Yulin ZHANG ,  Guorong WANG ,  Yufa HE ,  Jianfei WEI ,  Jinhai ZHAO ,  Zeliang LI ,  Jinzhong WANG ,  Wang LI ,  Wujun TONG ,  Jie WANG

IPC: F16L29/00 ,  F16L53/34 ,  F16L37/00 ,  F16L37/30

CPC classification number: F16L29/007 ,  F16L53/34 ,  F16L37/004 ,  F16L37/30

Abstract: A pure electric modular subsea test tree is provided, which includes a connect-disconnect device, wherein the first channel is formed in the connect-disconnect device; the connect-disconnect device is provided with a locking assembly and a connection drive mechanism for driving the locking assembly, and the first electrical connection plug is embedded in the connect-disconnect device, and the connection drive mechanism is electrically connected with the first electrical connection plug; a shear-seal assembly, wherein a second channel communicated with the first channel is formed in the shear-seal assembly; the shear-seal assembly includes at least one shear-seal device capable of plugging the second channel; a connection part is formed on the shear-seal assembly; a heating device is arranged at one end of the shear-seal device far from the connection part. The disclosure relates to a pure electric modular subsea test tree, which has fast response speed and high operation safety.