摘要
为了定量评价低渗透油藏的注采井间动态连通程度,针对低渗透油藏流体流动存在启动压力梯度的特点,根据水电相似性原理和物质平衡原理,仅利用油田的注采开发数据建立了能够计算低渗透油藏注采井间动态连通性的阻容模型,并利用遗传算法对模型进行优化求解得到连通系数.现场结果表明:连通系数能够定量表征低渗透油藏的注采井间动态连通性大小,模型所得连通性结果与现场实际生产动态资料的分析结果非常一致.
According to the similarity of fluid flow to electricity and the material balance principle,a novel resistance-capacitance model is established to quantitatively study the dynamic connectivity between injection and production wells in low-permeability reservoir only using injection and production data. The connectivity factor between injection and production wells is obtained by solving the model using genetic algorithm( GA). The application case shows that the connectivity factor can quantitatively characterize the dynamic connectivity between injection and production wells in low-permeability reservoir,and the obtained result is in good agreement with the analysis of dynamic production data.
出处
《西安石油大学学报（自然科学版）》
CAS
北大核心
2013年第6期59-62,9,共4页
Journal of Xi’an Shiyou University（Natural Science Edition）
基金
国家油气重大专项"低渗透油藏中高含水期稳产配套技术"(编号:2011ZX05013-005)
关键词
井间连通性
低渗透油藏
注采数据
启动压力梯度
阻容模型
遗传算法
interwell connectivity
low permeability reservoir
injection-production data
threshold pressure gradient
resistance-capacitance model
genetic algorithm
