摘要
从研究深层岩石的物理特性出发,对不同钻井方式下(欠平衡钻井、气体钻井、控压钻井)的破岩机理和效率进行分析,在高压水射流、开发适应地层的破岩工具以及改进井下动力钻具等辅助破岩方面提出了相关见解。
A study was made based on the physical mechanics in deep formations. Analysis was made for rock breaking mechanics and efficiency, using different drilling ways （under-balance, air drilling, and pressure controlled drilling）. A proposal was made for high pressure jet, tools suitable for rock breaking and improved tools.
出处
《石油矿场机械》
2009年第8期6-8,共3页
Oil Field Equipment
基金
国家高技术研究发展计划(863计划)"全过程欠平衡技术与装备"(2006AA06A104)
关键词
机械钻速
钻井技术
破岩效率
rate penetration
well drilling technology
efficiency of fractured rock
