特高含水期新型水驱特征曲线

发布时间：2018-03-03 13:57

本文选题：水驱开发　切入点：特高含水期　出处：《石油勘探与开发》2017年06期 　论文类型：期刊论文

【摘要】：基于油田实测相对渗透率数据的统计分析,提出了高含水饱和度下油水相对渗透率比值与归一化含水饱和度间的新型函数表达式,实现了对常规相对渗透率比值关系曲线后段较为精确的拟合。利用新型油水相对渗透率比值表征关系式,结合油藏工程方法推导出两种适用于油田开发特高含水阶段(含水率大于90%)的新型水驱特征曲线。分别采用五点井网数值模拟结果和羊二庄油田、柳赞油田某区块实际生产数据,对新型水驱特征曲线的实用性进行了验证,结果表明,在甲型或乙型水驱特征曲线发生上翘以后,新型水驱特征曲线较常规水驱特征曲线的预测误差小,可用于预测特高含水阶段的油田生产动态、确定最终采收率以及可采储量。
[Abstract]:Based on the statistical analysis of the measured relative permeability data of oil fields, a new functional expression between the ratio of relative permeability of oil and water and the normalized water saturation under high water saturation is proposed. The relative permeability ratio of oil and water is represented by the new oil / water relative permeability ratio, and the relation between oil and water is represented by the new oil / water relative permeability ratio. In combination with reservoir engineering method, two new water drive characteristic curves suitable for high water cut stage (water cut > 90) in oilfield development are derived. The numerical simulation results of five-point well pattern and Yangerzhuang oilfield are used, respectively. The practicability of the new type water drive characteristic curve is verified by the actual production data of a certain block in Liuzan Oilfield. The results show that after the A or B water drive characteristic curve is up, The prediction error of the new water drive characteristic curve is smaller than that of the conventional water drive characteristic curve. It can be used to predict the oil field production performance and determine the final recovery factor and recoverable reserves in the super high water cut stage.
【作者单位】：中国石油勘探开发研究院;中国石油大学(北京)石油工程教育部重点实验室;
【基金】：国家科技重大专项(2016ZX05010-003) 中国石油天然气股份有限公司“高/特高含水油田改善水驱效果关键技术”项目(2016B-1202)
【分类号】：TE357.6

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