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    煤矿井下分段水力压裂

    1. 分段式水力压裂分为拖动式分段水力压裂和投球坐封式水力压裂;

    2. 该技术利用定向钻进技术优势,实现目标区域精准压裂、压裂范围大、安全可靠,主要用于煤层增透抽采、顶板弱化,能够减少瓦斯抽采钻孔工程量,缩短抽采周期,实现大区域强化抽采。

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