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Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
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Study Of Gas Production From Shale Reservoirs With Multi-Stage Hydraulic Fracturing Horizontal Well Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Study Of Gas Production From Shale Reservoirs With Multi-Stage Hydraulic Fracturing Horizontal Well Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Development of unconventional shale gas reservoirs (SGRs) has been boosted by the advancements in two key technologies: horizontal drilling and multi-stage hydraulic fracturing. A large number of multi-stage fractured horizontal wells (MsFHW) have been drilled to enhance reservoir production performance. Gas flow in SGRs is a multi-mechanism process, including: desorption, diffusion, and non-Darcy flow. The productivity of the SGRs with MsFHW is influenced by both reservoir conditions and hydraulic fracture properties. However, rare simulation work has been conducted for multi-stage hydraulic fractured SGRs. Most of them use well testing methods, which have too many unrealistic simplifications and assumptions. Also, no …
Modeling Of Gas Production From Shale Reservoirs Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Modeling Of Gas Production From Shale Reservoirs Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Gas transport in unconventional shale strata is a multi-mechanism-coupling process that is different from the process observed in conventional reservoirs. In micro fractures which are inborn or induced by hydraulic stimulation, viscous flow dominates. And gas surface diffusion and gas desorption should be further considered in organic nano pores. Also, the Klinkenberg effect should be considered when dealing with the gas transport problem. In addition, following two factors can play significant roles under certain circumstances but have not received enough attention in previous models. During pressure depletion, gas viscosity will change with Knudsen number; and pore radius will increase when …