摘要
本文综合考虑了影响酸压裂缝导流能力的诸因素；生产压降变化、非达西效应、油藏污染、裂缝几何尺寸、和导流能力沿缝变化等；推导并建立了三维酸压油井生产动态预测模型。通过模拟计算表明，裂缝闭合应力和岩石嵌入强度是酸压适应性的重要影响因素，非达西效应、油茂藏污染和裂缝闭合应力使油井产量降低，优化设计合理的裂缝几何尺寸和导流能力可提高产量。
This paper makes a comprehensive analysis of the factors that affect acid fracture productivity, such as production pressure drop, non Darcy effect, reservoir pollution,fracture size and the conductivity change along the fractures, etc, derives and establishes the performance prediction model of 3 D acid fractured well production. Simulation calculation shows that fracture closure stress and rock embedment strength are important factors influencing acid fracturing suitability, and non Darcy effect, reservoir pollution and fracture closure strength will reduce the production of wells. However the fracture size and conductivity designed optimumly and resonably will increase the production.
出处
《西南石油学院学报》
CSCD
1995年第4期72-79,共8页
Journal of Southwest Petroleum Institute
关键词
酸化压裂
采油井
油气藏渗流力学
动态预测
Acid fracturing
3 D analysis
Percolation
Fracture conductivity
Formation damage
Performance analysis
Productivity
Mathematical simulation
