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Effect of fracture design parameters on the well performance in a hydraulically fractured shale gas reservoir

机译:裂缝设计参数对水力压裂页岩气储层井性能的影响

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This study investigates the impact of fracture design parameters from the results of sensitivity analysis in a shale gas reservoir. When a shale gas reservoir is hydraulically fractured, the fracture network systems are formed comprising primary and secondary fractures. In the case of low permeability reservoir, especially, the more complex fracture network systems is, the more the productivity is improved. In this study, a sensitivity analysis was carried out to evaluate the impact of fracture design parameters on the well performance in a hydraulically fractured shale gas reservoir using simulation model. The productivity is improved when the secondary fracture conductivity increases or spacing decreases with various conditions of reservoir. It is shown that the determination of whether to increase or decrease secondary fracture growth is required to improve the productivity of shale gas reservoir. Based on the results, a guideline for hydraulic fracturing is proposed.
机译:这项研究从页岩气储层敏感性分析的结果调查了裂缝设计参数的影响。当页岩气储层被水力压裂时,形成的裂缝网络系统包括一次和二次裂缝。特别是在低渗透油藏的情况下,裂缝网络系统越复杂,生产率提高的程度就越大。在这项研究中,进行了敏感性分析,以使用模拟模型评估裂缝设计参数对水力压裂页岩气储层中油井性能的影响。在不同的储层条件下,当次生裂缝电导率增加或间距减小时,生产率得到提高。结果表明,需要决定是增加还是减少次生裂缝的增长,以提高页岩气储层的生产率。基于这些结果,提出了水力压裂的指导方针。

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