摘要
本文根据压裂酸化施工后地层流体作非径向流动的特点,建立了以无因次压力表示的稳定流动数学模型,提出了有限差分求取增产倍比的数值计算方法。该方法全面考虑了钻井完井造成的井底污染、压裂酸化带来的裂缝壁面污染、有限裂缝导流能力等因素的影响,能准确预测压裂酸化井的增产倍比。
According to non-radial flow characteristic of fluid in formation after acid fracturing treatment, this paper has developed a steady flow mathematical model expressed in dimensionless pressure, and proposed a difference method for calculating stimulatiou ratio. The method all-sidedly considers influences of well-bore damage from well boring and well completion, fracture-wall damage from acid fracturing treatment, and finite fracture conductivity. It can be used to calculate the stimulation ratio of an acid fracturing well accurately.
出处
《西南石油学院学报》
CSCD
1991年第4期37-45,共9页
Journal of Southwest Petroleum Institute
关键词
压裂
酸化
地层损害
预测
产量
Formation damage
Fracture conductivity
Acid fracturing
Production prediction
Mathematical model
Calculating method
