安塞油田长10储层调剖工艺优化技术研究

发布时间：2018-03-31 17:41

本文选题：安塞油田　切入点：调剖工艺　出处：《西安石油大学》2015年硕士论文

【摘要】：随着安塞油田大部分区块都进入水驱开发的中后期,油井含水越来越高,产量递减越来越快,但地下可采储量仍然较大,如何提高中高含水期油田开采效益已成为油田关注的一个焦点。本研究以长10油藏作为研究对象,开展储层调剖工艺优化技术研究,通过理论分析、室内模拟实验与工艺优化,明确影响长10油藏储层调剖效果的关键因素,获得储层调剖最佳时机以及矿场实用的决策方法;建立长10储层调剖剂选择标准与工艺参数计算模型,提出合理的调剖工艺与施工步骤,最终形成一套适合安塞油田长10储层调剖工艺优化方法,为矿场调剖施工提供指导与技术支撑。具体研究内容包括以下三个方面:(1)安塞油田长10储层注水开发与调剖现状分析通过分析安塞油田长10储层岩石、流体物性以及目前注水开发与调剖现状,在具体分析影响调剖效果因素基础上明确长10储层注水低效与调剖效果差的原因与机制。(2)安塞油田长10储层调剖时机选择研究从长10储层地质特征和生产动态数据出发,建立矿场实用的注水井调剖决策方法,并通过长管模型驱油实验和平板模型驱油实验室内模拟调剖时机对长10储层注水剖面与原油采收率的影响,明确长10储层储层调剖最优时机。(3)安塞油田长10储层储层调剖工艺优化方法研究根据长10储层物性、流体性质等因素,结合室内岩心流动实验,建立调剖剂选择标准与工艺参数方法,为现场调剖施工提供有效指导。
[Abstract]:As most of the blocks in Ansai Oilfield enter the middle and late stages of water drive development, the water cut of oil wells is getting higher and higher, and the production is decreasing faster and faster, but the underground recoverable reserves are still large.How to improve the production efficiency of middle and high water cut oil field has become a focus of attention.This study takes Chang10 reservoir as the research object, carries out the research on the optimization technology of reservoir profile control technology. Through theoretical analysis, laboratory simulation experiments and process optimization, the key factors that affect the reservoir profile control effect of Chang 10 reservoir are identified.The optimal time for profile control in reservoir and the practical decision method in mine field are obtained, the selection standard and calculation model of parameters of profile control agent for Chang 10 reservoir are established, and the reasonable profile control technology and construction steps are put forward.Finally, a set of optimization method for profile control technology of Chang10 reservoir in Ansai oilfield is formed, which provides guidance and technical support for profile control construction in mine field.The specific research contents include the following three aspects: 1) the current situation of water injection development and profile control of Chang 10 reservoir in Ansai Oilfield. Through the analysis of rock, fluid physical properties and current situation of water injection development and profile control in Chang 10 reservoir in Ansai Oilfield,On the basis of specific analysis of the factors affecting profile control effect, the causes and mechanism of low water injection efficiency and poor profile control effect in Chang 10 reservoir are determined. The study on the timing of profile control in Chang 10 reservoir in Ansai Oilfield is based on the geological characteristics and production performance data of Chang 10 reservoir.A practical profile control decision method for water injection wells in mine field is established, and the effect of profile control time on injection profile and oil recovery of Chang10 reservoir is simulated by long tube model flooding experiment and flat model oil displacement laboratory.Study on optimizing method of profile Control Technology for Chang10 Reservoir in Ansai Oilfield according to physical property and fluid property of Chang 10 reservoir, combined with indoor core flow experiment,The selection standard and process parameter method of profile control agent are established to provide effective guidance for field profile control construction.
【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】：TE357

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