基于钻井液动力润滑作用的钻柱涡动实验装置研究

发布时间：2018-06-29 04:04

本文选题：钻井 + 钻柱涡动　；参考：《燕山大学》2015年硕士论文

【摘要】：在石油钻井中,下部钻柱的运动状态比较复杂,在井眼中存在两种主要状态:正向涡动;反向涡动。国内外对下部钻柱涡动机理及规律做了大量研究与分析,但是仍有一些问题没有解决。李子丰教授发表的《钻柱涡动理论研究的必由之路—钻井液动力润滑学与钻柱动力学相结合》文章,对钻柱涡动理论的研究做了详细的归纳和总结,并且提出了一种全新的理论研究思路。本课题以“基于最小功耗率原理和钻井液动力润滑作用的钻柱涡动理论与实验研究(51374183)”国家自然科学基金为基础,考虑钻井液动力润滑作用,通过建立实验装置模拟钻柱涡动的实验方法,研究下部钻柱涡动,并且与基金项目(51374183)的理论研究进行对比,为钻柱防断设计提供理论基础,使钻柱涡动理论有一个质的飞跃。室内模拟钻柱涡动的实验方法很少,所以本课题具有一定的创新性。本文在参考现有相关实验模拟装置后,建立了考虑钻井液动力润滑作用的钻柱涡动实验装置。该装置包括了调速控制系统、轴向力加载系统、钻井液循环防渗系统、数据采集系统、应变式测扭系统及倾斜装置、扶正装置等。整体方案确定后,绘制了钻柱涡动实验装置的机械图及其零件图,在加工后进行了组装,并布置了数据采集系统。调试实验,确保实验装置各组成部分互相匹配,修正传感器的测量系数。然后,改变实验条件,分析研究了钻井液的动力润滑作用和受压钻柱的屈曲及涡动状态,初步得到钻柱运动规律。实验结果表明:钻柱涡动实验装置设计比较合理、满足实验需求,达到了设计目的,但同时也存在一些设计不足问题,为此提出了具体的改进意见和后续的实验内容与方案。
[Abstract]:In the oil drilling well, the movement state of the lower drill string is more complex. There are two main states in the hole in the well: forward vorticity and reverse vorticity. A lot of research and analysis are done on the mechanism and law of the lower drill string at home and abroad. But there are still some problems that have not been solved. This paper makes a detailed summary and summary of the research on the theory of drill string vorticity, and puts forward a new theory of theoretical research. The subject is "the theory and experiment of drill string eddy dynamic based on the principle of minimum power consumption and the dynamic lubrication of drilling fluid (51374183)" On the basis of the scientific fund, considering the dynamic lubrication of drilling fluid, the experimental method of simulating the drill string eddy motion is established, and the lower drill column vorticity is studied and compared with the theoretical research of the fund project (51374183), which provides a theoretical basis for the drill string failure design and makes the drill string eddy theory have a qualitative leap. There are few experimental methods for column vorticity, so this topic has some innovation. In this paper, after referring to the existing relevant experimental simulation devices, a drill string eddy experimental device which considers the dynamic lubrication of drilling fluid is set up, which includes the speed control control system, the axial force loading system, the drilling fluid circulation anti seepage system, and the data acquisition system. After the whole scheme is determined, the mechanical drawing and the part drawing of the drill string eddy experiment device are drawn, and the data acquisition system is arranged and the data acquisition system is arranged. The debugging experiment is made to ensure that the components of the experimental device match each other, and the measurement coefficients of the sensors are corrected. Then, change the reality. The dynamic lubrication of the drilling fluid and the buckling and vorticity state of the pressed drill string are analyzed and studied, and the movement law of the drill string is preliminarily obtained. The experimental results show that the design of the drilling column vortex experiment device is reasonable, meets the requirements of the experiment and achieves the design goal, but at the same time there are some problems of design insufficiency, and the concrete modification is put forward. Input and follow up experimental contents and plans.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE921.2

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