Multi-layer coalbed methane joint exploitation equipment

Abstract

The invention discloses multi-layer coalbed methane joint exploitation equipment. The equipment comprises a mounting cylinder; eight sets of walking mechanisms are arranged on the inner side cylinder wall of the mounting cylinder; the four sets of walking mechanisms are evenly arranged on the upper cylinder wall of the mounting cylinder; and the other four sets of walking mechanisms are evenly arranged on the lower cylinder wall of the mounting cylinder. In conclusion, multiple layers of coalbed methane can be exploited at the same time without being limited by the number of coalbeds, and the problem that the coalbed methane flows backwards when the multiple layers of coalbed methane are exploited at the same time is effectively prevented; and during exploitation, the equipment is not limited by the coalbed depth and can be moved to any position for exploitation, so that the exploitation speed can be increased, and the exploitation efficiency can be multiplied by preventing multiple pieces of equipment in the same coalbed.

Description

technical field [0001] The invention belongs to the technical field of coal-bed methane exploitation, and in particular relates to multi-coal seam coal-bed methane combined production equipment. Background technique [0002] In order to increase the single-well production of coalbed methane, in addition to using a stable single-layer fracturing mining method, a lot of explorations have been carried out in the mode of multi-coal seam fracturing and co-production, but the multi-coal seam co-production technology explored is Mining has not shown too many advantages. One of the main reasons is that when multiple coal seams are mined at the same time, interference between coal seams often occurs, that is, due to the different pressures between the various coal seams, coalbed gas is caused during mining. The reverse irrigation will interfere with the normal mining and also cause some damage to the coal seam. Contents of the invention [0003] In order to solve the deficiencies ...

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Problems solved by technology

[0002] In order to increase the single-well production of coalbed methane, in addition to using a stable single-layer fracturing mining method, a lot of explorations have been carried out in the mode of multi-coal seam fracturing and co-production, but the multi-coal seam co-production technology explored is Mining has not shown too many advantages. One of the main reasons is that when multiple coal seams are mined at the same time, interference between coal seams often occurs, that is, due to the different pressures between the various coal seams, coalbed gas is caused during mining. Backflow, which interferes with normal mining and also causes certain damage to the coal seam

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