Multi-dimensional data source lump coal permeability analysis method, measurement device and method

A technology for multi-dimensional data and measurement devices, applied in permeability/surface area analysis, measurement devices, suspension and porous material analysis, etc., can solve problems such as lack of connection, difficult multi-dimensional data acquisition, and single function

Active Publication Date: 2020-07-10
TAIYUAN UNIV OF TECH
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Problems solved by technology

In addition, the existing related equipment at home and abroad have single functions, it is difficult to meet the collection of multi-dimensional data and lack of connection with the field, it is necessary to develop a set of multi-dimensional data source lump coal permeability measurement device and propose related measurement methods

Method used

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  • Multi-dimensional data source lump coal permeability analysis method, measurement device and method
  • Multi-dimensional data source lump coal permeability analysis method, measurement device and method
  • Multi-dimensional data source lump coal permeability analysis method, measurement device and method

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Embodiment Construction

[0081] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0082] A method for analyzing the permeability of lump coal with multi-dimensional data sources provided by the present invention, its logic is as follows figure 1 As shown, the penetration model formula (1) is established first, and then the impact factors in the penetration model formula (1) are extracted, so as to collect impact factor data from multiple dimensions, and then use machine learning and other methods to find the optimal algorithm and determine K = The functional relation of f(X). The analysis method includes the following steps:

[0083] S1. Using the Kozeny-Garman equation relationship between permeability and porosity, without considering the influence of acoustic field and electromagnetic field on permeability, the following permeability model is established:

[0084]

[0085] In formula (1), K is the permeability, k 0 is the initial ...

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Abstract

The invention discloses a multi-dimensional data source lump coal permeability analysis method. A permeability model is established, influence factors of lump coal permeability are identified, and themulti-dimensional data source lump coal permeability analysis method is established so that an analysis result is more accurate. Meanwhile, the invention discloses a multi-dimensional data source lump coal permeability measurement device and method. The device comprises an adsorption and desorption system, an electro-hydraulic servo triaxial seepage test device, a gas source system, a vacuumizingsystem, a gas collection device and the like, deformation can be measured and used for analyzing the change rule of permeability, the relation between parameters while drilling and mechanical properties is established and serves as a permeability prediction sample, and the desorption rule of gas-containing coal under the high-temperature coupling of the constant-temperature environment and the middle line of the sample is studied, and finally, the data of the lump coal permeability influence factor under laboratory conditions is obtained so as to accurately analyze and measure the permeability of the lump coal.

Description

technical field [0001] The invention relates to a lump coal permeability analysis method, measuring device and method, in particular to a lump coal permeability analysis method, measuring device and method with multi-dimensional data sources, belonging to the field of mining engineering. Background technique [0002] Permeability is a key parameter in the design of coalbed methane drainage, and its temporal and spatial changes determine the initial state, migration and production of coalbed methane. Scholars have conducted extensive research on the factors affecting permeability, including ground stress, gas content, gas pressure, ground temperature, and coal mechanical properties. The research results have deepened people's understanding of permeability evolution. The permeability prediction method under the background of permeability evolution is a research hotspot, and the permeability prediction method based on theory and numerical calculation has become more and more ma...

Claims

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Application Information

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IPC IPC(8): G01N15/08G06N20/00
CPCG01N15/08G01N15/0806G01N15/082G06N20/00G01N2015/0866
Inventor 王毅王骏辉顾吉胜万志军赵耀江顾舒宁张洪伟姚彦军王阳
Owner TAIYUAN UNIV OF TECH
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