Device and method for remotely controlling gas production rate of coal-bed gas wells

A technology for remote control of coalbed methane wells, which is applied to wellbore/well valve devices, earthwork drilling and production, wellbore/well components, etc. It can solve problems such as labor costs, casing pressure changes, and inability to be adjusted in time. To achieve the effect of reducing the workload

Inactive Publication Date: 2020-04-28
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] In the process of coalbed methane drainage, according to the changes in casing pressure and gas production, it is often necessary to adjust the gas supply on site with a cone valve, which requires labor costs and cannot be adjusted in time. Personnel cannot be stationed 24 hours a day. It is easy to cause rapid changes in casing pressure and affect the productivity of coalbed methane wells

Method used

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  • Device and method for remotely controlling gas production rate of coal-bed gas wells
  • Device and method for remotely controlling gas production rate of coal-bed gas wells

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Embodiment Construction

[0015] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0016] Such as figure 1 As shown, the device for remotely controlling the gas production of a coalbed methane well in the present invention includes: a power supply mechanism 1, a motor control mechanism 2, and a mechanical connection mechanism 3; 32, connecting piece 33 and throttle valve 34; gas inlet 341 and gas outlet 342 for the circulation of coal bed gas are arranged on the throttle valve 34, and a controllable cone 343 is set to extend into the interior from the through hole at the top of the throttle valve , the through hole is provided with a screw thread and a sealing ring 344, and the side wall of the controllable cone 343 is provided with threads, and the screw thread is matched with the thread to move rela...

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Abstract

The invention relates to a device and method for remotely controlling the gas production rate of coal-bed gas wells. A remote upper controller sends control commands to a 4G router through wireless communication and transmits the control commands to a stepper motor controller, the stepper motor controller follows the control commands to control a stepper motor driver to drive a stepper motor, thestepper motor drives a reducer and connecting parts to rotate so as to drive a controllable cone to rotate in the specified direction, and remote control over the gas production rate of the coal-bed gas wells is achieved. According to the device and method for remotely controlling the gas production rate of the coal-bed gas wells, remote transmission system is arranged, remote control can be realized, and the workload of people is greatly reduced, a fully automatic data acquisition and analysis drawing system is arranged, real-time analysis can be performed on the coal-bed gas wells, and the most important thing is that the on-site gas production rate can be adjusted in time remotely.

Description

technical field [0001] The invention relates to the technical field of mine displacement control, in particular to a device and method for remotely controlling the gas production of a coalbed methane well. Background technique [0002] In the process of coalbed methane drainage, according to the changes in casing pressure and gas production, it is often necessary to adjust the gas supply on site with a cone valve, which requires labor costs and cannot be adjusted in time. Personnel cannot be stationed 24 hours a day. It is easy to cause rapid changes in casing pressure and affect the productivity of coalbed methane wells. Therefore, there is an urgent need for a set of equipment that can remotely control the on-site throttle valve to protect the coal reservoir and reduce production costs. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a device and method for remotely controlling the gas production of a coalbed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/12E21B34/00
CPCE21B34/00E21B43/006E21B43/12
Inventor 贾晋生魏国琴郝春生季长江邵显华杨昌永常会珍支佳彬田庆玲陈召英
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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