大庆石油地质与开发2018，Vol.37Issue(1)：83-87,5.DOI:10.19597/J.ISSN.1000-3754.201703011
水驱油田高含水期体积波及系数预测方法
PREDICTING METHOD OF THE VOLUMETRIC SWEPT COEFFICIENT FOR HIGH-WATERCUT WATERFLOODED OILFIELDS
摘要
Abstract
When analyzing the performances of the waterflooded oil reservoir at the high watercut stage,because the volumetric swept coefficient deduced from the conventional water flooding characteristic curves can't describe the curve upwarping features,there is a large error.On the basis of the water drive characteristic curve at the high watercut stage,a new predicting formula of the volumetric swept coefficient which is suitable for the stage was derived;the relationships between the volumetric sweep coefficient and the water cut under various oil-water viscosity ratios were analyzed.With the help of the case study,the accuracy was verified and the upwarping moment was studied as well.The application analysis shows that the greater the oil-water viscosity ratio is,the later the upwarping moment will be.At the high watercut stage,the error of new formula is far smaller than those of Type Jia,Yi and Zhang Jinqing,and moreover the determined values for the upwarping moment are accordant.The new predicting formula is more practical for the development index prediction and evaluation of the waterflooded oilfield at the later stage of the production.关键词
水驱油田/体积波及系数/高含水期/水驱特征曲线/上翘点Key words
waterflooded oilfield/volumetric swept coefficient/high watercut stage/water flooding characteristic curve/upwarping moment分类
能源科技引用本文复制引用
杜晓康,李治平,田丰,姜凯..水驱油田高含水期体积波及系数预测方法[J].大庆石油地质与开发,2018,37(1):83-87,5.基金项目
国家科技重大专项“大型油气田及煤层气开发”(2016ZX05037-006) （2016ZX05037-006）
北京市自然科学基金“超临界CO2对储层性质的改变及油气田开发的影响”(3162026). （3162026）
