粒子冲击破岩试验装置的研制与试验研究

发布时间：2018-09-08 09:55

【摘要】：随着时间的推移,在我国浅层的油气资源已经开发殆尽,但是在深部硬地层中还存在着较多的油气资源,然而就目前传统的钻井技术而言,普通的钻井方法往往不能起到令人满意的钻进效果,其较低的破岩效率直接影响着钻井工程的经济效益,这种情况严重制约了深部油气资源的开发,因此研制一种应对深部硬地层的有效的钻进方法就显得尤为重要。粒子冲击钻井是一种新型的钻井方法,它以粒子冲击破岩为主以机械破岩为辅,其对坚硬岩层有很强的破碎能力。粒子冲击钻井设备具有较强的灵活性,在对较浅或较软地层进行钻进时,可以使用传统的钻进方法进行钻进,当钻进时遇到较硬地层时可以将粒子冲击钻井装置加装到传统的钻机上,通过此设备向钻井液中持续、稳定地注入钢制粒子,并由钻井液输送到井底对坚硬的岩石进行破碎,达到较传统钻进方法更高的钻进速度,实现更好的经济效益。本文在充分调研和分析国内外粒子冲击破岩理论与实践的基础上,提出并研制了一套粒子冲击破岩试验装置,该装置可以实现粒子持续稳定的注入,并能对影响粒子冲击破岩效率的相关参数进行试验。应用Fluent软件建立系统的仿真模型,并对其进行了动态仿真分析。最后,基于粒子冲击试验装置进行了多项试验,发现多种因素对破岩效率影响的规律,为粒子冲击破岩技术的应用提供了技术支持与理论指导。
[Abstract]:With the passage of time, the shallow oil and gas resources in our country have been exhausted, but there are still many oil and gas resources in the deep hard formation. However, as far as the traditional drilling technology is concerned, Ordinary drilling methods often can not play a satisfactory drilling effect, and their low rock breaking efficiency directly affects the economic benefits of drilling engineering, which seriously restricts the development of deep oil and gas resources. Therefore, it is very important to develop an effective drilling method for deep hard formation. Particle impact drilling is a new drilling method, which is mainly assisted by mechanical rock breaking, and it has strong crushing ability to hard rock formation. Particle impact drilling equipment has a strong flexibility, in shallow or soft formation drilling, you can use the traditional drilling method, The particle impact drilling device can be added to the traditional drilling rig when drilling in the hard formation, through which the steel particles can be continuously injected into the drilling fluid, and the hard rock can be broken down from the drilling fluid to the bottom hole. The drilling speed is higher and the economic benefit is better than the traditional drilling method. Based on the investigation and analysis of the theory and practice of particle impact rock breaking at home and abroad, a set of particle impact rock breaking test device is put forward and developed in this paper, which can realize the continuous and stable injection of particles. And it can be used to test the related parameters which affect the rock breaking efficiency of particle impact. The simulation model of the system is established by using Fluent software, and the dynamic simulation analysis is carried out. Finally, several experiments are carried out based on the particle impact test device, and the law of the influence of various factors on the rock breaking efficiency is found, which provides technical support and theoretical guidance for the application of particle impact rock breaking technology.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE92

【共引文献】