摘要
目前已有的计算水驱油藏水侵量的方法大多比较复杂，为了准确、简便地预测水驱油田水侵量，通过对水驱油藏水驱规律特征和水侵量计算方法的研究，结合目前的生产动态资料，基于甲型、乙型、丙型和丁型4种常用水驱特征曲线，利用Welge方程推导出油田油水渗流特征关系，再结合水侵量的物质平衡原理，建立了计算水驱油田水侵量的新模型。新方法不需要对水体的形态及大小作出任何假设，且计算所需参数容易获取。通过实例计算表明，新方法计算过程简便，计算结果准确，实用性强。
The existing calculation methods of aquifer influx of water drive reservoirs are mostly very complex. In order to predict the aquifer influx accurately and simply in water-drive oil field, through researches of both characteristics of water-drive rules and the methods of calculating aquifer influx, a new model for calculation of aquifer influx of a water-drive oilfield is established on the basis of four kinds of often-used water-drive feature curves, that is, A,B, C and D types, combined with the present production performance data and the material balance principle of aquifer influx. The oil-water percolation characteristic relationship in the oilfield has been derived by using the Welge equation, The new method does not need to make any assumption about the shape and size of the water body, and the calculation required parameters are easy to obtain. Example calculations show that the calculation process of the new method is simple, with accurate calculation results, and practical.
基金
新世纪优秀人才支持计划（编号：NCET-10-0950）
“十二五”国家油气重大专项课题“高压气藏安全高效开发技术”（编号：201IZX05015-002）.
关键词
水驱特征曲线
水驱油田
水侵量
含水饱和度:物质平衡方程
water-drive curve
water-drive oilfield
aquifer influx
water saturation
material balance equation
