不规则井网面积波及系数计算方法  

CALCULATION METHOD FOR AREAL SWEEP EFFICIENCY OF IRREGULAR WELL PATTERN

作　　者：张顺康[1] 刘炳官[2] 钟思瑛[1] 

机构地区：[1]中国石化江苏油田地质科学研究院,江苏扬州225009 [2]中国石化江苏油田分公司开发处,江苏扬州225009

出　　处：《大庆石油地质与开发》2010年第4期49-52,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：江苏省自然科学基金（BK2008582）.

摘　　要：针对目前复杂边界、平面非均质、不规则井网条件下水驱面积波及系数一直缺乏准确计算方法的现状，结合油藏工程方法，利用动态数据得到水驱曲线反求能够代表复杂边界、平面非均质、不规则井网条件下的相对渗透率曲线，进而计算出水驱面积波及系数。结合油藏数值模拟结果，对理论计算结果进行了对比。结果表明，提出的计算方法在数学上比较简单，计算结果较为可靠。At present, the accurate calculation methods for the areal sweep efficiency of water flooding under the conditions of complex boundaries, areal heterogeneity and irregular well pattern are absent. This paper proposes a new method to calculate the areal sweep efficiency of waterflood. With the application of reservoir engineering meth- od, the water drive curves can be obtained based on dynamic data, and the relative permeability curves that can re- present the conditions of complex boundaries, areal heterogeneity and irregular well pattern will be got, and then the areal sweep efficiency for water flooding can be calculated. The method is verified by comparing the results of reservoir numerical simulation with theoretical results. From the comparison, the method presented in this paper is quite simple with satisfactory accuracy.

关 键 词：不规则井网 相对渗透率曲线 水驱曲线 面积波及系数 数值模拟 

分 类 号：TE324[石油与天然气工程—油气田开发工程]