CAJ | 학술논문

空气潜孔锤钻探工艺在基岩地区已是首选的一种技术。传统观念认为空气潜孔锤钻进工艺适用于坚硬岩石（硬、脆、碎地层），在松散地层中则需要常规泥浆回转钻进或冲击钻进。通过典型松散地层的试验证明：空气潜孔锤在松散覆盖地层中可以实现正常的钻进，并且具有效率高、成本低、劳动强度小等优点，在粘土和潮湿粘土地层中钻进效率最高可达87和72 m/h。为解决页岩气、地热、煤层气、地下水等能源资源勘探时上覆地层的开孔或一开钻进提供了行之有效的方法，同时，也解决了缺水地区或严重漏失地层钻井液用水困难和传统开孔或一开泥浆回转钻探工艺复杂等问题。
공기잠공추찬탐공예재기암지구이시수선적일충기술。전통관념인위공기잠공추찬진공예괄용우견경암석（경、취、쇄지층），재송산지층중칙수요상규니장회전찬진혹충격찬진。통과전형송산지층적시험증명：공기잠공추재송산복개지층중가이실현정상적찬진，병차구유효솔고、성본저、노동강도소등우점，재점토화조습점토지층중찬진효솔최고가체87화72 m/h。위해결혈암기、지열、매층기、지하수등능원자원감탐시상복지층적개공혹일개찬진제공료행지유효적방법，동시，야해결료결수지구혹엄중루실지층찬정액용수곤난화전통개공혹일개니장회전찬탐공예복잡등문제。
Air DTH hammer drilling is a preferred technology in bed rock area, which by tradition is suitable for hard rock drilling(in hard, brittle and broken formations);while for loose formations, conventional mud rotary drilling or percussive drilling should be used.Based on the test on typical unconsolidated formation drilling, it is proved that normal drilling can al-so be realized in loose overburden layer by air DTH hammer with advantages of high efficiency, low cost and small labor in-tensity, the highest drilling efficiency is up to 87m/h and 72m/h in clay and moist clay drilling respectively.This result pro-vides an effective method to hole opening or the first spud section drilling for the exploration of shale gas, geothermal energy, coal seam gas and underground water in overlaying layers and solves the water shortage for drilling fluid in water scarce areas or serious leakage formations and avoids the difficulties in the complicated processes of conventional mud rotary drilling.