The directional pinnate horizontal multilateral well has been a rising technology in recent years for increasing coalbed methane recovery.
定向羽状水平井技术是近几年兴起的一项煤层气地面抽采技术。
The existence of start-up pressure gradient can make depressurization effect of pinnate horizontal multilateral well get worse, which promotes gas production reduced.
启动压力梯度的存在会使煤层中羽状水平井的降压效果变差，从而减少煤层气的产量。
A key tool of drilling multilateral horizontal well is retrievable whip stock.
钻多分枝水平井的关键工具是可回收式斜向器。
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