Oil type gas detection method
An oil-type gas and detection system technology, which is applied in the field of mine safety production, can solve the problems of lack of oil-type gas gushing risk detection, etc., and achieve the effects of rapid construction layout, operation safety, and rapid and accurate judgment
Pending Publication Date: 2022-04-05
HUAINAN MINING IND GRP +2
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Problems solved by technology
However, there is still a lack of methods for detecting the risk of oil-type gas gushing in the prior art
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[0014] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are clearly and completely described below in conjunction with specific embodiments and with reference to the accompanying drawings. Obviously, the described embodiments are part of the implementation of the present invention. example, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0015] Such as figure 1 As shown, this embodiment provides an oil-type gas detection system, including a plurality of electrodes 1 arranged at intervals along the roadway direction, the electrodes 1 are connected in communication with an electrical instrument 2, and the electrical instrument 2 controls the Electrode 1 emits an excitation current and collects the current ...
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The invention provides an oil-type gas detection system, which comprises a plurality of electrodes arranged at intervals along the direction of a roadway, the electrodes are in communication connection with an electrical method instrument, the electrical method instrument controls the electrodes to emit excitation current and acquires current and voltage signals received by the electrodes, the electrical method instrument converts the signals received by the electrodes into apparent resistivity, and the apparent resistivity is calculated according to the apparent resistivity. If the unit change rate of the apparent resistivity in the depth direction of the rock stratum exceeds a preset threshold value, the oil type gas gushing risk exists, and otherwise, the oil type gas gushing risk does not exist. The method has the advantages that the electrical prospecting instrument determines the stratum structure and stability of the current environment according to the apparent resistivity contour cross-section diagram and determines whether the gushing risk exists or not according to the change rate of the apparent resistivity, the gushing risk and the gushing position can be rapidly and accurately judged, and operation safety is guaranteed. And the whole system can be rapidly arranged and constructed in the roadway, and the normal tunneling progress is not influenced.
Description
technical field [0001] The invention relates to the technical field of mine safety production, in particular to an oil-type gas detection system. Background technique [0002] In coal-oil-gas symbiotic mining areas, during underground mining operations in coal mines, abnormal gas gushing out often leads to excessive gas concentration at the mining face, resulting in mining stagnation, increasing monitoring difficulties, endangering the lives of workers, and posing a serious threat to safe and efficient mine production. Among the various factors for the occurrence of oil-type gas underground in coal mines, each factor has a certain impact on the occurrence and distribution of oil-gas, but the degree of influence is different, and the depth of the reservoir only reflects the oil-type gas in the deep area Relatively enriched, but oil-type gas enrichment points are mostly located near structures, sandstone updip pinches or sandstone lenses. [0003] In the prior art, there have...
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IPC IPC(8): G01V3/08G01V3/38
Inventor 柏发松张骞童云飞余熠翟艳鹏冯步云王军辉
Owner HUAINAN MINING IND GRP