Coal mine underground gas extraction drilling failure evaluation system

A gas drainage and evaluation system technology, applied in earthwork drilling, wellbore/well components, measurement, etc., can solve problems such as borehole deformation, collapse, affecting the drilling volume, etc., to achieve less labor and material resources, guarantee Smooth connection, improve the effect of gas drainage

Pending Publication Date: 2022-08-02
GUIZHOU UNIV +1
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Problems solved by technology

[0003] When using boreholes to extract coal seam gas, due to the influence of various parameters of the coal seam, the drainage boreholes are likely to fail and cause the boreholes to deform or collapse. Whether the boreholes can be used directly affects the extraction effect of coal seam gas, which is related to the drainage area. Whether the extraction can reach the standard within the set time, and it also affects the amount of drilling construction

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  • Coal mine underground gas extraction drilling failure evaluation system

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0038] like figure 1 As shown, the present invention provides a failure evaluation system for underground gas drainage in coal mines, including:

[0039] The parameter acquisition modu...

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Abstract

The invention discloses a coal mine underground gas extraction drilling failure evaluation system, which comprises a parameter acquisition module used for acquiring geological parameters of a to-be-researched coal seam; the model construction module is used for constructing a gas extraction drilling prediction model; the model prediction module is used for inputting the geological parameter data into a gas extraction drilling prediction model and predicting and judging the drilling operation state according to the judgment indexes; the failure evaluation module is used for performing drilling failure type division according to an evaluation result to obtain a failure type result of each drilling hole; and the failure repairing module is used for repairing the drill holes according to the failure types of all the drill holes, and real-time operation of gas drill hole extraction is guaranteed. The method is reasonable in design, coal seam gas extraction can be guaranteed to reach the standard on the premise that the gas extraction effect is improved and the construction cost is reduced, accurate coal seam gas extraction is achieved, and a theoretical basis and technical guidance are provided for on-site extraction drill hole arrangement.

Description

technical field [0001] The invention belongs to the field of coal seam gas drainage, and in particular relates to a failure evaluation system for gas drainage boreholes in coal mines. Background technique [0002] Most of the mining areas in my country have high gas content, and the pressure of gas disaster prevention and control is high, which restricts the safe production of mines. The technology of drilling coal seam gas extraction is a fundamental measure to reduce gas content, prevent gas accidents and realize safe coal mining. Among them, the application effect of drilling coal seam gas technology in mine gas control is remarkable. In view of the regional characteristics of coal seam gas occurrence, the key is to accurately determine the parameters of drilling layout and achieve coal seam gas drainage up to the standard, which is of great significance for the prevention and control of mine gas disasters. [0003] When drilling coal seam gas is used, affected by vario...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/117E21B47/10
CPCE21B47/117E21B47/10
Inventor 韦善阳黄聪张义平谢铁新
Owner GUIZHOU UNIV
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