基于模糊综合评判法的优势渗流通道定量识别方法研究

发布时间：2018-01-26 03:37

本文关键词： 模糊综合评判优势渗流通道注采动态关联分析法　出处：《数学的实践与认识》2017年11期 　论文类型：期刊论文

【摘要】：目前我国大多数油田已进入高含水期,油水井间的优势渗流通道普遍发育,严重制约了油田采收率的提高.如何有效识别优势渗流通道已成为改善注入水驱油效果的关键.基于模糊综合评判法,将油水井动静态资料相结合建立评价模型,利用综合评判指数对优势渗流通道进行识别,并建立出量化标准.应用注采动态关联分析法对所建立的评价模型及标准进行验证,并对某区块油藏进行优势渗流通道识别判断,识别效果较好.评价方法资料获取难度低,计算方便,易于操作和推广,能够为油田后期深度调驱或井网调整提供理论依据.
[Abstract]:At present, most oil fields in China have entered high water cut stage, and the dominant seepage channels between oil and water wells are generally developed. How to effectively identify the dominant seepage channels has become the key to improve the effect of injection water flooding. Based on the fuzzy comprehensive evaluation method. The evaluation model is established by combining the dynamic and static data of oil and water wells, and the dominant seepage channel is identified by comprehensive evaluation index. The quantitative standard is established. The evaluation model and standard are verified by injection-production dynamic correlation analysis and the dominant percolation channel is identified and judged for a certain block reservoir. The evaluation method has the advantages of low difficulty in obtaining evaluation data, convenient calculation, easy operation and popularization, and can provide theoretical basis for depth control flooding or well pattern adjustment in the later stage of oilfield.
【作者单位】：东北石油大学石油工程学院;大庆油田博士后科研工作站;
【基金】：国家自然科学基金(51404070) 黑龙江省自然科学基金(QC2015056) 中国博士后基金
【分类号】：TE312
【正文快照】： 油田长期注水开发过程中,由于油层非均质性等地质因素和不合理的工作制度等开发因素,造成了油水井间不利于提高驱油效率的优势渗流通道,导致大量注入水沿此渗流通道做无效注采.为改善注水效果,达到稳油控水的目的,对优势渗流通道准确识别具有重要的意义(文[1-3]).目前优势渗流

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