Coal-bed gas intelligent water-measuring device and method

Abstract

The invention relates to a coal-bed gas intelligent water-measuring device and method. The device comprises a water tank and a control unit, wherein the water tank is provided with a water inlet end communicated with a water generating end of a coal-bed gas well and a water outlet end for discharging water from the water tank; a first control valve is arranged at the water inlet end; a second control valve is arranged at the water outlet end; a liquid level detector for detecting the liquid level height in the water tank is arranged in the water tank; the control unit is used for collecting the liquid level height detected by the liquid level detector, recording the time of the liquid level detector reaching the preset liquid level height and controlling the first control valve and the second control valve to open or close; and the control unit is connected with a communication module and a display device, wherein the communication module is communicated with the exterior, and the display device is used for displaying data. The coal-bed gas intelligent water-measuring device is simple and reasonable in structure design, is free from unnecessary trouble brought by a water gauge adopted in the prior art, is capable of increasing the working efficiency and can ensure the accuracy of measuring the water yield.

Description

technical field [0001] The invention relates to an intelligent water measuring device and method for coalbed methane. Background technique [0002] During the extraction process of coalbed methane, it is necessary to reduce the pressure of the coalbed by pumping the water in the coalbed so that the coalbed methane can be desorbed and discharged. Therefore, it is necessary to grasp the production status of coalbed methane wells through the collection of coal seam water production, so as to ensure the normal production and operation of coalbed methane wells. [0003] In addition, for different coalbed methane wells and their different drainage stages, in the process of water pumping and drainage, the range of displacement may be relatively large, and it is often accompanied by the discharge of gas and pulverized coal. If a traditional water flow meter is used, its measuring range usually cannot cover the water volume variation range of different coalbed methane wells and diff...

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Problems solved by technology

[0003] In addition, for different coalbed methane wells and their different drainage stages, in the process of water pumping and drainage, the range of displacement may be relatively large, and it is often accompanied by the discharge of gas and pulverized coal.

If a traditional water flow meter is used, its measuring range usually cannot cover the water volume variation range of different coalbed methane wells and different drainage stages; moreover, the pulverized coal in the produced water may block the water flow meter, resulting in inaccurate water measurement or meter failure. fail

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