煤矿安全2019，Vol.50Issue(9)：88-91,4.DOI:10.13347/j.cnki.mkaq.2019.09.022
顶板复杂岩层无线随钻测量复合定向钻进技术
Composite Directional Drilling Technology for Wireless Measurement While Drilling in Roof Complex Rock Formations
摘要
Abstract
In view of the shortcomings of low drilling efficiency, poor slag discharge effect and easy occurrence of drilling accidents in the construction of directional drilling in complex roof strata in the past, the technology of wireless while drilling combined directional drilling based on screw drill pipe was developed, and suitable drilling equipment was selected. Field tests were carried out in Huainan Guqiao Mine. The maximum drilling depth was 530 m and the cumulative drilling footage was 1 673 m, the pore-forming rate is 100%, and the slag-discharging effect is increased by more than two times. The test results show that the mud pulse wireless MWD system has stable performance, accurate measurement data, high drilling efficiency and drilling ability, good composite slag removal effect of screw drill pipe and high drilling cleanliness, and effectively improves drilling rate, drilling efficiency and drilling safety in complex rock strata.关键词
顶板复杂岩层/泥浆脉冲/随钻测量/复合定向钻进/复合排渣Key words
roof complex strata/mud pulse/measurement while drilling/compound directional drilling/compound slag discharge分类
矿业与冶金引用本文复制引用
王鲜,李泉新,许超,方俊..顶板复杂岩层无线随钻测量复合定向钻进技术[J].煤矿安全,2019,50(9):88-91,4.基金项目
中国煤炭科工集团有限公司科技创新创业资金专项资助项目(2018ZD004) （2018ZD004）
