摘要
简要介绍了ＣＱＳ型旋冲钻井工具（射吸式冲击器）原理以及在长庆油田８口井现场试验情况。试验结果表明，中生界下白垩系和侏罗系地层（上部井段）机械钻速可提高２０％～３０％，中生界中、下三迭系地层（下部井段）机械钻速提高４０％左右，工具性能稳定，钻头没有损害。结论认为，旋冲钻井工艺技术是提高破岩效率的行之有效方法。
The theory of the tool and field application in 8 wells in Changqing Oilfield are presented.The test results show ROP up by 20%-40%,and steady properties. No wear were foundon the bits. The conclusion is that the drilling techniques with the tool is an effective method for rockbreaking efficiency.
出处
《石油钻探技术》
北大核心
1995年第4期47-49,共3页
Petroleum Drilling Techniques
关键词
旋转钻井
冲井钻井
钻井工具
rotary drilling + impacting drilling, impact tool, jet flow, WOB,ROP, field testing,Changqing Oilfield
