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随着我国石油资源的不断枯竭,石油勘探开发逐渐的转向深井硬地层和复杂地层,在这些地层钻井中存在着钻井速度慢,钻井成本高难题,亟需新型的钻井新技术新方法研究。油气井的钻井实践表明,通过在井底钻头喷嘴处形成高压喷射射流,可以大幅度的提高钻井速度,降低钻井成本。因此国内外钻井工程研究人员提出井下增压钻井新技术,文章通过调研和理论研究,分析了井下螺杆增压技术、井下减震增压技术、井下射流增压技术的工作原理、工艺流程及现场试验的效果。为提高石油钻井速度降低钻井成本提高技术基础。
With the continuous depletion of oil resources in our country, the exploration and development of petroleum gradually turned to the deep hard formations and complicated strata. In these formations, drilling has the problems of slow drilling speed and high drilling cost, and a new type of new drilling technology is urgently needed. Drilling practices in oil and gas wells have shown that by forming high-pressure jet jets at the bottom hole bit nozzles, the drilling speed can be greatly increased and the drilling cost can be reduced. Therefore, drilling engineering researchers at home and abroad put forward a new technology of underground pressurized drilling. Through the research and theoretical research, the article analyzes the working principle, technological process and scene of downhole screw pressurization, downhole pressurization and pressurization, downhole jet pressurization The effect of the test. To improve the drilling speed and reduce drilling costs to improve the technical basis.