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Coal bed gas collection method and system based on Kalman filtering and storage medium

A technology of Kalman filter and acquisition method, which is applied in the direction of mining equipment, mining equipment, earth cube drilling and mining, etc.

Active Publication Date: 2019-05-24
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the exploration and development of coalbed methane, Kalman filtering and fuzzy control have not been applied to this field, and there is no effective intelligent control method to control the gas collection during desorption of coalbed methane to effectively suppress coalbed methane The control interference and the noise in the data acquisition during the acquisition control process, in order to achieve the ideal effect of coalbed methane acquisition at a uniform speed

Method used

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  • Coal bed gas collection method and system based on Kalman filtering and storage medium
  • Coal bed gas collection method and system based on Kalman filtering and storage medium
  • Coal bed gas collection method and system based on Kalman filtering and storage medium

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Experimental program
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Embodiment 1

[0075] Embodiment one, as Figure 1-9 As shown, a coalbed methane acquisition method based on Kalman filter includes the following steps:

[0076] S1: Obtain the real-time temperature and pressure real-time measurements of the desorption of the coalbed methane, respectively;

[0077] S2: Based on the Kalman filter method, respectively establish a Kalman filter model according to the real-time measurement value of the temperature and the real-time measurement value of the pressure, and obtain the optimal estimation of the temperature when the coalbed methane is desorbed according to the Kalman filter model value and pressure optimal estimate;

[0078] S3: Obtain the temperature error between the optimal estimated value of the temperature and the preset expected temperature value, and the pressure error between the optimal estimated value of the pressure and the expected expected pressure value, based on the fuzzy control method, according to the The temperature error and the ...

Embodiment 2

[0126] Embodiment two, such as Figure 10 as shown, Figure 10 It is a schematic structural diagram of a coalbed methane acquisition system based on Kalman filtering in this embodiment.

[0127] A coalbed gas acquisition system based on Kalman filter, comprising an acquisition unit, a Kalman filter model building unit, a first computing unit, a second computing unit and a fuzzy control unit;

[0128] The acquisition unit is used to respectively acquire the real-time measured value of temperature and the real-time measured value of pressure when the coalbed methane is desorbed;

[0129] The Kalman filter model building unit is used to establish a Kalman filter model based on the Kalman filter method according to the real-time temperature measurement value and the real-time pressure measurement value;

[0130] The first calculation unit is used to respectively obtain the optimal estimated value of temperature and the optimal estimated value of pressure during desorption of the...

Embodiment 3

[0134] Embodiment 3. Based on Embodiment 1 and Embodiment 2, the present invention also discloses another coalbed methane acquisition system based on Kalman filter, which includes a processor, a memory, and is stored in the memory and can run on the processing A computer program on the device, and the computer program implements the specific steps of S1-S3 in a coalbed methane collection method based on Kalman filter of the present invention when running.

[0135] By storing the computer program on the memory and running it on the processor, the coalbed methane acquisition system based on the Kalman filter of the present invention can be realized, the data can be detected in real time and the accuracy of the data can be improved, and it can be used in complex mathematical models that are difficult to establish Under certain conditions, the effective control of the gas collection valve during the uniform-speed collection of coalbed methane gas can be realized, the efficiency of ...

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Abstract

The invention relates to a coal bed gas collection method and system based on Kalman filtering and a storage medium. The method comprises the steps of respectively acquiring a temperature real-time measurement value and a pressure real-time measurement value during coal bed gas desorption; Based on a Kalman filtering method, respectively establishing Kalman filtering models according to the real-time temperature measurement value and the real-time pressure measurement value, and respectively obtaining an optimal temperature estimation value and an optimal pressure estimation value when the coal bed gas is desorbed according to the Kalman filtering models; and respectively acquiringa temperature error between the optimal temperature estimation value and a preset expected temperature value and a pressure error between the optimal pressure estimation value and a preset expected pressure value and based on a fuzzy control method, adjusting the opening degree of the gas collecting valve during desorption of the coal bed gas according to the temperature error and the pressure error. Based on the Kalman filtering method and the fuzzy control method, data can be detected in real time, theaccuracy of the data is improved, constant-speed collection of the coal bed gas is achieved, the collection efficiency of the coal bed gas is improved, and the mining cost is reduced.

Description

technical field [0001] The invention relates to the technical field of structural coal exploration and development, in particular to a coalbed gas acquisition method, system and storage medium based on Kalman filtering. Background technique [0002] The extensive development of tectonic coal and the abundance of tectonic coal-bed methane resources are significant features of coal-bed methane resources, and the efficient exploration and development of tectonic coal-in-situ coal-bed methane has been put on the agenda. In the process of exploration and development, the collection of coalbed methane gas will be affected by many factors, such as a series of physical quantities such as pressure, temperature, flow rate, and displacement. For the in-situ coalbed methane exploration and development system of structural coal, pressure and temperature have a great influence on the desorption process and collection rate of coalbed methane gas. The desorption rate of gas decreases; the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50E21F7/00E21F17/18
Inventor 李自成桑树勋刘庆王后能贾金龙曹丽文王海文周效志
Owner WUHAN INSTITUTE OF TECHNOLOGY