油气地质与采收率2012，Vol.19Issue(4)：99-102,4.
引入系数的新型水驱特征曲线的建立
establishment of a new type of water drive characteristic curve
摘要
Abstract
In the analysis and prediction of water drive performance of reservoirs, water-drive characteristic curves used to predict recoverable reserves, recovery efficiency and evaluate reservoir performance in a water-drive oilfield, so, its characteristic curves are widely used in study and field application, but it can only correspond a single relationship between water cut and reserves recovery percent. In order to better reflect and describe the different types of the rising trend of water cut of water drive reservoir, a new type of water drive characteristic curves has been established based on the two existed double logarithmic water flooding characteristic curves. Accordingly, the water cut and degree of recovery can be obtained and then it is taken as a function of style to draw the convex function, S, concave curve type of diagram of this function. The new drive characteristic curves of water has been used in a real field case, by choosing different parameters to predict recoverable reserves in this block, comparing with the actual value and selecting the one with smaller error, we build the best expression of the water drive curve to predict the rising trend of water cut in this block. Through comparative analysis of two instances, the new water drive characteristic curve is more suitable in medium-high water stage, but low feasibility for high and higher water cut stage.关键词
水驱特征曲线/可采储量/含水率/采出程度/水驱油藏Key words
water drive characteristic curve/ recoverable reserves/ water cut/ recovery percentage of reserves/ water drive reservoir分类
能源科技引用本文复制引用
周鹏,陈小凡,乐平,吕蓓,辜旋,陈秋实..引入系数的新型水驱特征曲线的建立[J].油气地质与采收率,2012,19(4):99-102,4.基金项目
国家科技重大专项"高含水油田提高采收率新技术"(2008ZX050102003). （2008ZX050102003）
