山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2014年
12期
168-169,172
,共3页
超深%偏距%注浆%堵水%螺杆%定向%纠偏%分支%钻孔
超深%偏距%註漿%堵水%螺桿%定嚮%糾偏%分支%鑽孔
초심%편거%주장%도수%라간%정향%규편%분지%찬공
ultra deep%offset%grouting%water shutoff%screw%directional%correction%branch%drilling
地面超深注浆堵水钻孔由于受到岩石的各向异性、岩石硬度差距较大的互层以及人为钻进操作工艺不合理等因素影响，钻孔偏斜率难以控制，往往出现终孔偏距严重超限，无法满足注浆要求的现象，严重影响注浆效果甚至造成钻孔报废。采用定向钻井技术可以在偏距严重超限的注浆钻孔内且岩石完整、硬度较软和曲率半径合理的孔段施工分支定向钻孔，达到纠偏或重新施工分支注浆钻孔的目的。
地麵超深註漿堵水鑽孔由于受到巖石的各嚮異性、巖石硬度差距較大的互層以及人為鑽進操作工藝不閤理等因素影響，鑽孔偏斜率難以控製，往往齣現終孔偏距嚴重超限，無法滿足註漿要求的現象，嚴重影響註漿效果甚至造成鑽孔報廢。採用定嚮鑽井技術可以在偏距嚴重超限的註漿鑽孔內且巖石完整、硬度較軟和麯率半徑閤理的孔段施工分支定嚮鑽孔，達到糾偏或重新施工分支註漿鑽孔的目的。
지면초심주장도수찬공유우수도암석적각향이성、암석경도차거교대적호층이급인위찬진조작공예불합리등인소영향，찬공편사솔난이공제，왕왕출현종공편거엄중초한，무법만족주장요구적현상，엄중영향주장효과심지조성찬공보폐。채용정향찬정기술가이재편거엄중초한적주장찬공내차암석완정、경도교연화곡솔반경합리적공단시공분지정향찬공，체도규편혹중신시공분지주장찬공적목적。
Due to the anisotropy of rock and rock hardness larger gap interbed and artiifcial drilling operation process is not reasonable factors, the borehole deviation rate of the ground ultra deep grouting and plugging water borehole is dififcult to control, and often appear the serious overrun of the ifnal hole offset, which were unable to meet the requirements of grouting phenomenon, seriously affected grouting effect and even caused drilling scrap. By using the directional drilling technology can construct the branch directional drilling in the grouting hole which offset were serious overrun, and rock hardness that is soft and full, reasonable curvature radius, achieve the deviation or reconstruction branch grouting holes.
