钻柱恶性振动识别与抑制技术研究进展

钻柱振动问题在钻井实践中普遍存在,钻柱恶性振动是造成钻头、钻柱失效的重要原因,其会降低钻井时效,增加钻井成本。如何有效识别钻柱恶性振动并加以抑制是一个重要的课题,国内外对其开展了大量的攻关研究和工程实践。本文详细阐述了钻柱耦合振动的理论研究现状及最新发展趋势,对钻柱振动室内实验研究进行了总结,介绍了国内外井下振动监测装置、钻柱振动抑制工具研发与应用的最新进展;最后提出理论研究与室内试验相结合,研发钻柱动力学分析软件及井下振动识别监测工具,配套合适的抑制、减振工具是解决钻柱恶性振动问题的主要方法;同时建议开展振动抑制一体化解决技术的研究。

Research Advances in Drillstring Excessive Vibration Identification and Control Techniques

The vibration of drillstring is a common problem while drilling.Serious vibration is one of the most important reasons leading to bit and drillstring failure,which can reduce drilling efficiency and increase cost.So how to identify and suppress drilling vibration is a vital task and many researches have been done about this.Through the review of theoretical study and latest progress of drillstring dynamics,summarization of laboratory test research,the latest development of vibration monitoring device and suppression tool are introduced in this paper.Main solution of the problem should include drillstring dynamics software on the basis of theoretical study and laboratory test,vibration monitoring device and proper vibration suppression tool.Meanwhile,the research of vibration suppression integrated technology is proposed.