复合油藏内外区同时压裂试井模型研究

Petrochemical Industry Application(2013)

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Abstract
针对内外区同时压裂的复合油藏,建立并求解了多区复合油藏点源模型,求得了内外区同时压裂两区复合油藏的无因次井底压力的表达式,最后分析了试井曲线特征和裂缝、地层参数对典型曲线形态影响。研究表明,内外区压裂井和内区压裂井的试井曲线形态有差别。当裂缝半长超出内区半径时,应采用新建立的内外区同时压裂模型来解释裂缝及地层参数。
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Key words
finite conductivity,well testing,fracturing,vertical fracture well,composite reservoir
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