公开(公告)号：US20230258282A1

公开(公告)日：2023-08-17

申请号：US17999722

申请日：2021-05-20

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Xinglong CHEN ,  Jianguo XU ,  Jiazhong WU ,  Haishui HAN ,  Na ZHANG

IPC: F16K47/08 ,  E21B34/02 ,  E21B43/16 ,  F15D1/02 ,  F15D1/06 ,  F16K27/08

CPC classification number: F16K47/08 ,  E21B34/02 ,  E21B43/168 ,  F15D1/025 ,  F15D1/06 ,  F16K27/08 ,  F16L55/02763

Abstract: A cylinder porous cylinder, a gas flow control valve, and a mounting method for the gas flow control valve. The porous cylinder (1) includes a plurality of pipe bundles filled inside the pipe. A single flow passage is formed in each of the pipe bundles, such that a seepage passage is formed inside the pipe. The inner diameter, length and permeability of the pipe bundle are determined in advance based on a Reynolds number smaller than 2300. The porous cylinder (1) is capable of implementing a stable gas flow in a gas injection channel. The valve body (21) of the gas flow control valve (2) is provided therein with a plurality of tubular passages arranged in sequence along the horizontal direction of the valve body. The tubular passages include a pipe flow passage (24) and a plurality of seepage passages (25). The porous cylinder (1) is mounted in each of the seepage passages (25). A plurality of connection channels (221) are provided in the valve cap. One end of each of the connection channels (221) communicates with the interior of each of the tubular passages, and the other end of each of the connection channels (221) is provided respectively with a valve stem. The opening and closing of the plurality of tubular passages are controlled by the valve stem, thus regulating the output ratio of the injected gas. In addition, a mounting method for the gas flow control valve is further provided.

公开(公告)号：US20210010356A1

公开(公告)日：2021-01-14

申请号：US16849283

申请日：2020-04-15

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Xinglong CHEN ,  Jingyao WANG ,  Chengming ZHANG ,  Shitou WANG ,  Jiazhong WU ,  Zhong REN

IPC: E21B43/16

Abstract: The disclosure provides a gasflow distribution device, a gas distributor, a pipe string and a method for separate-layer gas injection. The device includes an outer pipe, a gland, a filter screen, and a filling block with a pore structure; the outer pipe is a hollow outer pipe, used for containing the filling block, with an open upper end and a lower end with a bottom of which the center part is provided with a bottom hole, wherein the filling block is sealed to the inner wall of the outer pipe; the gland has a bottom end provided with a circular groove for setting the filter screen, and a top end distributed evenly with a plurality of top holes through the gland; and the gland is connected to the outer pipe, and the filter screen is pressed tightly against the filling block after the gland is connected to the outer pipe.

公开(公告)号：US20230204395A1

公开(公告)日：2023-06-29

申请号：US17793195

申请日：2021-01-13

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Xinglong CHEN ,  Qingjie LIU ,  Jiazhong WU ,  Haishui HAN ,  Hongwei YU

IPC: G01F1/20 ,  F15D1/04 ,  G01F15/00

CPC classification number: G01F1/206 ,  F15D1/04 ,  G01F15/005 ,  G01F15/06

Abstract: A phase power device, comprising: a circulation pipe (1) and a preset number of phase power control components (2), wherein the circulation pipe (1) is used to provide a channel for fluid circulation flow, and the preset number of phase power control components (2) are disposed on the circulation pipe (1) and used to drive fluid in the circulation pipe (1) to circulate and flow. Further provided is a fluid experiment system, comprising the phase power device. The phase power device and the fluid experiment system may enable the fluid to meet a set flow requirement during the experiment, thus reducing the use of auxiliary equipment, and reducing experiment costs.