水驱油田基于液量的分结构开发指标预测方法

根据油田开发实际资料分析提出了油田开发指标分析中的几个结构分析指标（结构含水、产液结构含水上升率、含水结构含水上升率及结构递减率）的概念，研究了由多个不同结构构成油田的开发指标的变化规律。通过数值模拟和前缘驱替理论计算以及实际开发指标的结构分析，论证了油田开发指标预测应采用分结构的预测方法，并根据水驱特征曲线、产量递减曲线等油藏工程方法建立了水驱油田基于液量的分结构开发指标预测模型。经检验该预测模型达到了较高的预测精度，可应用于年度规划、长远规划的编制以及年度配产工作中的开发指标预测。

Development Index Prediction by Substructures Based on Liquid Volume in Water flood Oilfield

Several structure analysis index(structure water content,water cut increase rate in liquid production, water cut increase rate in water production and structure decreasing rate)during analyzing oilfield development index are put forward based on actual oilfield development data, varying regularity in development in dex in oilfields with different structures are studied.Through numerical simulation and calculation of front edge flooding theory,together with analysis of structure of actual development index, it is proved that development index prediction by structures should be adopted,and development index prediction model by structures based on liquid volume in waterflood oilfield is set up,reaching relatively high accuracy,and can be used in annual programming,long-term programming and annual production distribution.