penecontemporaneous quicksand deformation

Based upon cavity effect of explosive, researching and manufacturing a tool breaking erratic in well and combining with wallscraper drilling resolved large diameter well completion technology in erratic stratum and improved drilling efficiency from several times to dozens times and quickened the speed of well completion.

利用炸药聚能效应原理 ,研制井内漂砾破碎器 ,结合扩取钻进的方法 ,解决了卵漂砾地层大口径成井难的技术问题 ,提高钻进效率达几倍至几十倍 ,加快成井速度。