油井燃爆压裂或燃爆诱导水力压裂在低渗油田开发中地位越来越重要,而对近井地带多裂缝系统的产能研究较少,难以支撑压裂参数的定量优化.针对该问题,基于带有多裂缝单井物理模型,利用油藏渗流理论和节点系统分析的方法,建立了燃爆诱导压裂油井产能计算模型,并分析了不同裂缝长度和裂缝条数对油井产能的影响.结果表明,油井产能随着裂缝长度近似线性增加,随着裂缝条数的增加也逐步增加,但超过5条增加幅度减缓.研究成果对燃爆压裂设计和压后产能评测具有一定的指导作用.%Oil well exploding fracturing and exploding induced hydraulic fracturing is playing a more im-portant role in low permeability oil field development. There are few research about production with multi-fracture system in near wellbore area, so that it is difficult to support the quantitative optimization of frac-ture parameters. To solve the problem, based on the physical model of single well with multi-fracture, oil well productivity calculation model was built using the theory of fluid flow in porous media and the nodal system analysis method. The effect of fracture length and number on oil well productivity were analyzed. The results showed that oil well productivity almost linearly increased with the length of fracture, and it is also gradually increased with the number of fracture, but the rate of increased become slowly if there are more than five fractures. The reseach has a guiding role for exploding fracturing design and productivity forecast.
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