特高含水油藏剩余油潜力评价及调整对策  

Study on Remaining Oil Potential Evaluation and Adjustment Strategy of Extra High Water Cut Reservoir

作　　者：王芳[1,2] 张云 李蕾[1,2] Wang Fang;Zhang Yun;Li Lei(Research Institute of Exploration and Development,Henan Oilfield Company,SINOPEC,Nanyang 473132;Henan Provincial Key Laboratory of Enhanced Oil Recovery,Nanyang 473132)

机构地区：[1]中国石油化工股份有限公司河南油田分公司勘探开发研究院,河南南阳473132 [2]河南省提高石油采收率重点实验室,河南南阳473132

出　　处：《石化技术》2021年第3期9-11,共3页Petrochemical Industry Technology

摘　　要：水驱油藏进入特高含水高采出程度开发阶段,剩余油的分布更加复杂,开发难度逐年增大。以首次选取综合含水大于98%的特高含水断块油藏为研究对象,选取综合含水和采出程度等指标建立剩余油潜力评价的标准,将剩余油潜力分为四类。通过潜力评价,确定了特高含水期剩余油潜力方向,并进行分类调整对策研究。实施效果表明,在特高含油藏仍然存在低含水剩余油潜力区,具有进一步提高采收率的空间。该研究成果对同类油藏开发后期提高采收率具有重要的借鉴意义。Water drive reservoirs enter the development stage of extremely high water cut and high recovery degree, the distribution of remaining oil becomes more complex, and the development difficulty increases year by year. In this paper, for the first time, the ultra-high water cut fault-block reservoirs with a comprehensive water cut of more than 98% were selected as the research object, and the comprehensive water cut and recovery degree were selected to establish the criteria for remaining oil potential evaluation, and the remaining oil potential was divided into four categories. Through the potential evaluation, the remaining oil potential direction was determined, and the classification and adjustment countermeasures were studied. The implementation results show that there is still low water cut remaining oil potential area in the extra-high reservoir, and there is room for further enhancement of oil recovery. The research results have important reference significance for the similar reservoirs to improve oil recovery in the later stage of development.

关 键 词：特高含水 剩余油 潜力评价 采收率 

分 类 号：TE327[石油与天然气工程—油气田开发工程]