·页岩气孔隙度渗透率模型与裂缝压力分析 |
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In this thesis, we considered a “Triple-porosity/Dual-permeability” model and performed sensitivity studies to understand long term pressure drawdown behavior of MTFHWs. A key observation from this study is that the early linear flow regime before interfracture interference gives a relationship between summed fracture half-length and permeability, from which we can estimate either when the other is known. We studied the impact of gas desorption on the time when the pressure perturbation caused by production from adjacent transference fractures (fracture interference time) andprogrammed an empirical method to calculate a time shift that can be used to qualify the gas desorption impact on long term production behavior.
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