大位移井半程旋转钻井离合器安放位置优化设计
发布时间：2018-11-02 09:19
【摘要】：随着油田开发中后期的到来,大位移井的应用越来越广泛,在钻井的过程中,摩阻扭矩过大引起的问题尤为突出,这严重影响了钻井的效率。摩阻扭矩过大使滑动钻进延伸能力不够,而旋转导向钻具成本过高等问题都严重影响了钻井作业。半程旋转钻井技术是我国企业自主创新提出的,该技术综合了滑动导向和旋转钻井的优点,本文主要对其重要组成部分离合器进行研究,以一种已设计成功并申请专利的离合器为研究对象,通过资料调研进行力学分析,建立了滑动钻进和旋转钻进同时存在的组合力学模型,并对其摩阻扭矩进行计算,并通过模拟计算优选离合器的安放位置,以此证明了这种钻井技术是可行性。通过理论研究与模拟计算,证明了半程旋转钻井技术能够实现钻井过程中减摩降扭的要求,能够提高钻井效率,提高大位移井的延伸能力,并节约成本。
[Abstract]:With the coming of the middle and late stage of oilfield development, the application of extended reach wells is more and more extensive. During drilling, the problems caused by excessive friction torque are particularly prominent, which seriously affects the efficiency of drilling. The extension ability of sliding drilling is not enough and the cost of rotary steering drilling tools is too high, which seriously affects drilling operation. Semi-range rotary drilling technology is put forward by Chinese enterprises, which combines the advantages of sliding steering and rotary drilling. In this paper, the clutch, an important part of it, is studied. Taking a kind of clutch which has been designed successfully and applied for patent as the research object, the combined mechanics model of sliding drilling and rotary drilling is established, and its friction torque is calculated. This drilling technology is proved to be feasible by simulating the location of the optimal clutch. Through theoretical research and simulation calculation, it is proved that the semi-range rotary drilling technology can meet the requirements of reducing friction and torsion in drilling process, improve drilling efficiency, improve the extension ability of extended well, and save cost.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE921
本文编号：2305609
[Abstract]:With the coming of the middle and late stage of oilfield development, the application of extended reach wells is more and more extensive. During drilling, the problems caused by excessive friction torque are particularly prominent, which seriously affects the efficiency of drilling. The extension ability of sliding drilling is not enough and the cost of rotary steering drilling tools is too high, which seriously affects drilling operation. Semi-range rotary drilling technology is put forward by Chinese enterprises, which combines the advantages of sliding steering and rotary drilling. In this paper, the clutch, an important part of it, is studied. Taking a kind of clutch which has been designed successfully and applied for patent as the research object, the combined mechanics model of sliding drilling and rotary drilling is established, and its friction torque is calculated. This drilling technology is proved to be feasible by simulating the location of the optimal clutch. Through theoretical research and simulation calculation, it is proved that the semi-range rotary drilling technology can meet the requirements of reducing friction and torsion in drilling process, improve drilling efficiency, improve the extension ability of extended well, and save cost.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE921
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