Abstract
In this article extraction of methane from coal beds is presented. The article presents results of the study of downhole pumping equipment used in the exploitation of coal bed methane wells. The features of various types of equipment such as piston sucker-rod pumping units, electrical centrifugal pumping units and sucker-rod screw pumping units have been considered. The results show benefits of sucker-rod screw pumping units because of their versatility and resistance to higher content of mechanical impurities.
Highlights
Nowadays natural resources use tends to be effective
Methane which is extracted from coal beds via drilled wells is environmentally friendly hydrocarbon feedstock used for the region gasification as well as in industry, gas chemistry as a motor fuel, etc
Dark water with coal dust indicates a start of the coal bed destruction, which leads to the mudding of the formation zone bottomhole
Summary
Nowadays natural resources use tends to be effective. As a result there is a necessity of natural methane gas use for industrial and domestic needs (fuelling, lighting, etc). Kuzbass has no equals among the famous coal basins of the world. X high concentration of methane resources in coal beds - up to 3 bcm/km; x cumulative methane influx in coal beds of the basin (up to the depth of 1800 m) is about 13 tcm over the area of 21 thousand square kilometers. The stage of gas production largely determines the efficiency of the methane-coal complex operation as a whole. In this situation, the optimal use of downhole equipment and the extension of service life get their applicability [4]
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