Application of sand bailing technology in deep coalbed methane horizontal Wells
Due to deep coal seam burial and soft coal quality in south Wuxiang CBM research area,fracturing sand,pulverized coal and other substances enter the wellbore with the drainage fluid and deposit at the bottom of the well during drainage and production,resulting in gas well stuck pump,failure and shutdown,and reduce the production of CBM Wells.Based on the geological characteristics of block coal reservoirs in this area and the above problems existing in drainage and production,a sand bailing technology for deep coalbed methane horizontal Wells is presented in this paper.
Wuxiang SouthDeep coalbed gasDrainage and productionBailing pump
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