公开(公告)号：US20200217193A1

公开(公告)日：2020-07-09

申请号：US16305895

申请日：2017-09-27

Applicant: SOUTHWEST PETROLEUM UNIVERSITY

Inventor： Gao LI ,  Yi FENG ,  Shunhui YANG ,  Yijian CHEN ,  Na WEI ,  Yingfeng MENG ,  Rui LI

IPC: E21B49/00 ,  E21B21/08 ,  E21B21/10 ,  E21B43/12 ,  E21B43/26 ,  E21B34/08

Abstract: A mineshaft-stratum fracture coupled flowing simulation experiment device includes a simulated mineshaft flowing system, a simulated stratum system, a simulated fracture system and a data acquisition system. The simulated mineshaft flowing system includes simulated mineshaft, simulated drilling rod, drilling fluid storage tank, stirring motor, and drilling fluid screw pump. The simulated drilling rod is located in center of the simulated mineshaft. The stirring motor is provided in the drilling fluid storage tank. The drilling fluid screw pump is connected to an inlet end of the simulated drilling rod through the drilling fluid storage tank. The simulated stratum system includes simulated stratum, clean water storage tank, separation tank, gas storage tank, gas air-compressor, and clean water screw pump. The gas storage tank is connected to the gas air-compressor and is connected to the simulated stratum through a gas pressure regulating valve.

公开(公告)号：US20190024504A1

公开(公告)日：2019-01-24

申请号：US15922937

申请日：2018-03-16

Applicant: Southwest Petroleum University ,  Haohan Well Completion&Logging Science and Technology Limited Company

Inventor： Xingyu CHEN ,  Yingfeng MENG ,  Gao LI ,  Yijian CHEN ,  Yang WANG ,  Lunping ZHANG

IPC: E21B47/12

CPC classification number: E21B47/123 ,  G02B6/4428 ,  G02B6/504

Abstract: A logging-while-drilling optical fiber communication device includes a rotary wireless transceiver module fixed on a protective connector; an active antenna of the rotary transceiver is placed in the first drill pipe by drilling hole through the protective connector; an optical fiber communication drawworks is located at the top of a second drill pipe, the optical fiber is downwardly released into other under-well drill pipes, the bottom of the optical fiber is connected with the well-bottom wireless receiving module; the lowest part of the drill pipe are provided with a drilling data acquisition device and a well-bottom wireless transmitting module. In the present invention, the optical fiber cable is used as transmission medium, by the means of modulating information data obtained by well logging into optical wave, and transmitting to the optical communication link, high-speed bi-directional transmission of well logging information can be realized.

公开(公告)号：US20230095056A1

公开(公告)日：2023-03-30

申请号：US17952351

申请日：2022-09-26

Applicant: Southwest Petroleum University ,  Haohan Well Completion & Logging Science and Technology Limited Company

Inventor： Xingyu CHEN ,  Yingfeng MENG ,  Gao LI ,  Yijian CHEN ,  Hongtao LI ,  Lunping ZHANG ,  Kejing WANG

IPC: E21B47/18

Abstract: A pressure pulse communication system and method during gas drilling are provided. The system includes a downhole solenoid valve module and a sensor module, where the downhole solenoid valve module includes a valve body, a gas inlet, a piston micro-hole, a moving piston, a piston return spring, a piston cylinder, a gas outlet, a piston pressure relief hole, a solenoid valve spring, a solenoid valve, a battery, a pressure balancer, and a rubber seal. The pressure pulse communication system and method generate pressure pulses by changing the internal pressure of a drill pipe, such that a surface pressure sensor continuously receives the pressure pulses, thereby achieving the purpose of acquiring downhole temperature, pressure, and well inclination angle data.