As an important unconventional gas resource, shale gas has become an important part of gas production in recent years with the advantage of horizontal well drilling and large-scale multistage hydraulic fracturing completion technologies. The shale gas reservoir numerical simulation advances were reviewed and a multi-stage fractured horizontal well numerical simulation was performed to qualitatively modeling the well productivity in over-pressured shale gas reservoir based on actual shale properties and well completion parameters. A single horizontal well model was established on the basis of dual-porosity model and logarithmically spaced grid refinement. A comprehensive comparison and analysis of the initial average gas production, daily gas production, cumulative gas production, adsorbed gas and free gas cumulative production were provided to investigate the influence of matrix permeability, SRV permeability, hydraulic fracture conductivity and half length, SRV size, bottomhole pressure on the well performance. The research shows that for the high matrix permeability (K m > 10 À7 mD) and low SRV permeability (K SRV < 0.01 mD), the SRV permeability has a significant impact on the initial average gas production. For the high matrix permeability (K m > 10 À7 mD) and medium SRV permeability (0.01 mD < K SRV < 0.5 mD), the initial average gas production is controlled by both the matrix and SRV permeability. For the high matrix permeability (K m > 10 À7 mD) and high SRV permeability (K SRV > 0.5 mD), the initial average gas production is mainly controlled by the matrix permeability. When the matrix permeability is lower than 10 À9 mD, the cumulative gas production is too low to be of economic interest. For the matrix permeability (10 À9 mD < K m < 10 À5 mD), the matrix permeability and SRV permeability are all important factors that influence the cumulative gas production. For the matrix permeability (K m > 10 À5 mD), the matrix permeability has much more impact on
A newly developed low-velocity non-Darcy flow numerical simulator is applied to the Fuyu formation. The three-dimensional geological model of subject reservoir was established and 9 well plans were designed to obtain the optimal well adjustment plan. Additionally, the formation pressure gradient distributions were provided and the flow regions were divided to study the adaptability of different well adjustment plans. The numerical simulation of Da45 reservoir is an excellent opportunity to:(1) put the non-Darcy flow numerical simulator into application, (2) provide guidance for the Da45 reservoir, and (3) provide reference to the non-Darcy flow numerical simulation technique.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.