潜山油藏水平井组合注水驱替机理研究

发布时间：2018-03-07 05:14

  本文选题：水平井　切入点：注水开发　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：很多成功的水平井注水先例证明,低渗透油藏开发效果的改善得益于水平井注水技术的发展与应用。为了保持油藏的压力能量平衡,水平井注水方式的不同组合可以提高注水效率和采出程度,经济效益也随之提高。但是由于粘滞力对水平井井筒的影响,注水量突破之后,水平井注水效果很差,使水平井注水一直难以很好的利用。随着水平井注水的普遍应用,低渗透油藏出现了新的研究领域即水平井井网的分布与优化。近些年,随着油气开发的日益加深,注水井注水面积是否能得到充分的利用,是否能得到更高的采收效果,从而加大投资回报率,改善油田现有的开发状态,成为一个热门的研究课题。由此可见,老油气田的再开发与利用效果离不开水平井注水技术的广泛应用。本论文主要利用室内实验研究及数值模拟研究等手段来确定合理的注采参数、对注采井网进行优化研究,以及有针对性的调整注水手段,将为水平井注水开发油藏的稳产、增产提供帮助。以边台潜山和胜西潜山油藏为背景,研究该类油藏复杂结构井合适井型及注水开发方式,为该类油藏进一步提高采收率提供可靠的理论和技术支持;同时基于潜山油藏复杂结构井注水开发的研究认识,针对边台潜山和胜西潜山油藏进行注水开发研究,为边台潜山油藏注水调整及进一步提高采收率提供实用方案和建议。
[Abstract]:Many successful horizontal well water injection precedents prove that the improvement of low permeability reservoir development results from the development and application of horizontal well injection technology. Different combinations of water injection methods in horizontal wells can improve the water injection efficiency and the degree of production, and the economic benefits will also be improved. However, due to the influence of viscous force on the wellbore of horizontal wells, the water injection effect of horizontal wells is very poor after the water injection rate breaks through. With the general application of horizontal well injection, a new research field, the distribution and optimization of horizontal well pattern, has appeared in low permeability reservoir. In recent years, with the development of oil and gas, the distribution and optimization of horizontal well pattern are becoming more and more important. Whether the water injection area of water injection wells can be fully utilized, whether it can get a higher recovery effect, thereby increasing the rate of return on investment and improving the existing development status of oil fields has become a hot research topic. The redevelopment and utilization effect of old oil and gas field can not be separated from the wide application of horizontal well injection technology. This paper mainly uses laboratory experiment and numerical simulation to determine reasonable injection-production parameters and optimize injection-production pattern. As well as the pertinent adjustment of water injection means, it will help to stabilize production and increase production of horizontal well water injection development reservoir. Taking Bian Tai buried hill reservoir and Shengxi buried hill reservoir as background, this paper studies the suitable well type and water injection development mode of complex structure well in this kind of reservoir. It provides reliable theoretical and technical support for further improving oil recovery in this kind of reservoir, and based on the understanding of water injection development of complex structure wells in buried hill reservoir, the waterflooding development of buried hill reservoir and Shengxi buried hill reservoir is studied. It provides practical schemes and suggestions for water injection adjustment and further improvement of oil recovery in buried hill reservoir.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE357.6
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本文编号：1578071