基于旋转导向钻井技术的可控弯接头工作性能研究

发布时间：2018-04-29 08:56

本文选题：旋转导向钻井 + 可控弯接头　；参考：《西安石油大学》2015年硕士论文

【摘要】：随着经济和社会的发展,石油已经成为各个国家不可或缺的战略性资源,世界各国对石油的需求不断增加,传统的钻井技术已经不能满足不断增长的国际需求。因此上世纪九十年代工程人员发明了一种被称为旋转导向钻井的新技术,该技术是当今最先进的钻井技术,是现代石油钻井的发展方向,然而我国在该方面还处于较落后的地步,需要不断钻研取得突破。本文首先对已有的旋转导向钻井机构设计进行了改进,提出了一种更好的可控弯接头模型,并在此新型的指向式旋转导向钻井系统的基础上进行研究,对该系统中可控弯接头的关键部分导向节进行了分析,对其内部钢球与和其配合的滚道进行分析并得出了其共轭的结论;通过赫兹理论对钢球与滚道的接触和摩擦应力进行了计算;采用弹性流体动压润滑理论和MATLAB软件对导向节中的钢球与滚道在有润滑脂情况下的润滑情况进行分析模拟;最后通过实验验证钢球与滚道之间的磨损,得出可控弯接头在不同工作状态下钢球与滚道磨损的情况。文末对本论文的研究内容进行总结,并结合现有分析结论提出了该系统深入研究的建议和发展方向。
[Abstract]:With the development of economy and society, oil has become an indispensable strategic resource for each country. The demand for oil is increasing in the world, and the traditional drilling technology can no longer meet the increasing international demand. Therefore, in the 1990s, engineers invented a new technology called rotary steering drilling, which is the most advanced drilling technology and the development direction of modern petroleum drilling. However, our country is still lagging behind in this respect, and needs to make breakthroughs in research. In this paper, the existing rotary steering drilling mechanism design is improved, and a better controlled bend joint model is proposed, and based on this new type of directional rotary steering drilling system, the research is carried out. The key parts of the steering joint in the system are analyzed, and the conjugation of the inner steel ball and its matching raceway is analyzed. The contact and friction stresses between steel ball and raceway were calculated by Hertz theory, and the lubrication conditions of steel ball and raceway in guide joint were analyzed and simulated by using elastohydrodynamic lubrication theory and MATLAB software. Finally, the wear between the ball and the raceway is verified by experiments, and the wear between the ball and the raceway is obtained under different working conditions. At the end of this paper, the research contents of this paper are summarized, and the suggestions and development directions of the system are put forward in the light of the existing analysis conclusions.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE92

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