粒子冲击钻井技术述评

COMMENT ON PARTICLE IMPACT DRILLING TECHNOLOGY

为了解决提高硬地层钻井速度的钻井难题,以粒子冲击钻井系统的整个工艺流程为依据,论述了粒子冲击钻井技术的优点和缺点,阐述了其破岩机理。该方法改变了传统钻头切削地层的方式,提高了钻越硬地层的速度,但是地面设备和井下钻头还存在一些需要完善的地方。它代表着高效钻越硬地层的一个发展方向。我国东部地区和西部地区存在着广泛的基岩为火成岩的沉积盆地,粒子冲击钻井技术有可能成为一种高效经济的深井硬地层钻井的新方法。该技术经历了室内实验阶段和现场试验阶段,目前正在迈入商业应用阶段。

Improving the drilling rate of hard formation is always a problem in the world.At present,in order to actualize rapid drilling through hard formation,people mainly apply various new drilling techniques,improve rock-breaking tools of hard formation in deep well,optimize drilling technology and apply some modern rock-breaking technologies,but the effect is not full ideal.The particle impacts drilling technology has gone through from indoor experimental stage to field experimental stage when it comes out,and now it is striding into the stage of industrial application.According to the full operation of the technology,the advantages and disadvantages of the technology is described.This method changes the way of traditional cutting formation and improves the rate of drilling hard formation,but to the ground-based devices and down-hole rock bits there still exist some problems which need to be solved.The technology represents the trend of efficient drilling hard formation.In the east and west China,there are lots of sedimentary basins in which the bedrocks are igneous rocks.The technology probably become a new method of drilling deep well hard formation efficiently and economically.