煤矿井下1800m水平定向钻进技术与装备

发布时间：2018-06-25 15:47

本文选题：煤矿井下 + 定向钻孔　；参考：《煤炭科学技术》2015年02期

【摘要】：针对现有煤矿井下定向钻进技术与装备存在的技术问题,提出采用ZDY12000LD大功率定向钻机、泥浆脉冲无线随钻测量系统、配套钻具及复合定向钻进工艺进行煤矿井下定向钻进。结合现场试验,完成了主孔深度1 881 m的定向长钻孔,验证了ZDY12000LD钻机功率大、钻进及事故处理能力强的特点。同时,无线随钻测量系统测量精度高;配套复合定向钻进技术形成的钻孔孔壁光滑,沉渣少,钻孔曲率小,钻进效率高。说明上述钻进技术与装备可满足水平定向长深钻孔等的施工要求。
[Abstract]:In view of the technical problems existing in the existing directional drilling technology and equipment in coal mine, it is proposed to use ZDY12000LD high power directional drilling rig, mud pulse wireless while drilling measurement system, matching drilling tools and compound directional drilling technology to carry out directional drilling in coal mine. Combined with field test, the directional long hole with a depth of 1881 m was completed, and the characteristics of ZDY12000LD drilling machine with high power and strong ability of drilling and accident handling were verified. At the same time, the measurement accuracy of wireless while drilling measurement system is high, and the borehole wall is smooth, the sediment is less, the borehole curvature is small and the drilling efficiency is high. The above drilling technology and equipment can meet the construction requirements of horizontal directional long depth drilling and so on.
【作者单位】：中国煤炭科工集团西安研究院有限公司;
【基金】：国家科技重大专项资助项目(2011ZX05041-001)
【分类号】：TD712.6

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