采出井分层产量控制工艺设计及优化研究

发布时间：2018-05-23 17:42

本文选题：分层采油 + 产量控制　；参考：《东北石油大学》2016年硕士论文

【摘要】：分层开采指依据生产井油层开采情况,利用井下工艺管柱分开各目的层,来实现分层注采的目的。分层开采可减缓油层间层间干扰效应、提高油层动用程度、发挥油层潜力、降低含水率和增加产量,是高含水油层后期改善注水效果的主要措施。本文优化设计了分层采油的新工艺,对分层产量控制工艺管柱进行了优选设计,提出了分层配产配注方法,并对不同工况下分层采油进行受力分析,提出优化设计方案。介绍了可以实现6段以上分层产量长期动态控制及多参数监测技术,定型配套工具、仪器等有形化产品及装备。在这套新工艺的基础上,以剩余油饱和度为根据,通过数值模拟和经济评价,制定合理的分层配产配注方案。并考虑到细分层段后,隔层变薄,封隔器的坐封位置需更精准,为了实现精细分采分注、封隔器准确坐封目标层段和保障管柱安全,需要了解分层采油管柱上的应力应变分布,掌握分层采油管柱在不同工况下的位移情况,因此有必要对分层采油管柱进行深入的受力分析,通过有限元建模分析为采油工艺管柱的设计提供帮助,从而确定分层产量控制工艺管柱变形情况,并最终给出优化设计方案。本文结合了新型的分层产量控制系统、分层配产配注方案的制定与经济评价、分层采油管柱的力学分析优化,提出了一套科学的分层产量控制工艺,为新工艺的应用提供了理论的指导。
[Abstract]:Stratified production refers to the purpose of stratified injection and production by using downhole process tubing to separate all the target layers according to the production conditions of production wells. The main measures to improve the water injection effect in the later stage of high water-cut reservoir are to reduce the interlayer interference effect, improve the production degree, bring into play the reservoir potential, reduce the water cut and increase the production rate in the later stage of high water-cut reservoir. This paper optimizes the design of the new technology of stratified oil recovery, optimizes the pipe string of the stratified production control process, puts forward the method of the stratified production distribution and injection, analyzes the stress of the stratified oil production under different working conditions, and puts forward the optimum design scheme. This paper introduces the visible products and equipment which can realize the long-term dynamic control and multi-parameter monitoring of the output of more than 6 sections, as well as the formative tools and instruments. On the basis of this new process, according to the saturation of remaining oil, a reasonable plan of distribution and injection for stratified production is established through numerical simulation and economic evaluation. In consideration of the thinning of the spacer after the subdivision, the location of the Packer should be more accurate. In order to realize the precise separation of the injection, the Packer can accurately seal the target layer and ensure the safety of the pipe string, it is necessary to understand the stress and strain distribution on the stratified oil production string. In order to master the displacement of stratified oil production string under different working conditions, it is necessary to analyze the stress of the stratified oil production string deeply, and to provide help for the design of oil production process string through finite element modeling analysis. Finally, the optimum design scheme is given. In this paper, a new type of stratified production control system, the formulation and economic evaluation of stratified production and injection allocation scheme, and the mechanical analysis and optimization of stratified oil production string are combined, and a set of scientific stratified production control technology is put forward. It provides theoretical guidance for the application of the new process.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE35

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