Mechanism of reservoir damage during horizontal well drilling in coalbed methane reservoirs
The middling coal reservoir is vulnerable to reservoir damage caused by drilling fluid,solid particles,drilling pressure and other factors during the drilling of CBM horizontal wells.This paper takes the 2#coal seam and 1#coal seam in Qinshui Basin,Shanxi Province as examples to study the damage mechanism of coal reservoirs during the drilling process through laboratory experiments.To reduce and avoid the damage caused by coalbed methane reservoirs during horizontal well drilling,corresponding prevention and protection measures have been proposed.
Coalbed methaneReservoir characteristicsHorizontal well drillingInjury mechanism
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万方数据
