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。
According to the technical problems existed in the available mine directional drilling technology and equipment,a ZDY12000 LD high power directional drilling rig,drilling mud pulse wireless measurement system while drilling,assorted drilling tools and compound directional drilling technique were provided to the mine directional drilling.In combination with the site test,a directional long distance drilling of the main borehole with the depth of 1 881 m was completed.The high power,strong drilling and strong accident handling capacity of the ZDY12000 LD drilling rig were verified.Meanwhile,the measuring accuracy of the wireless measurement while drilling was high,assorted compound directional drilling technology could make a smooth borehole wall,less cuttings,less borehole curvature and high drilling efficiency.The above drilling technology and equipment could meet the construction requirements of the horizontal directional long distance deep borehole and others.
出处
《煤炭科学技术》
CAS
北大核心
2015年第2期109-113,共5页
Coal Science and Technology
基金
国家科技重大专项资助项目(2011ZX05041-001)
关键词
煤矿井下
定向钻孔
无线随钻测量
大功率定向钻机
复合定向钻进
underground coal mine
directional drilling
wireless measurement while drilling
high power directional drilling rig
com-pound directional drilling
