Nonlinear Seepage Model of Gas Transport in Multiscale Shale Gas Reservoirs and Productivity Analysis of Fractured Well
Joint Authors
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Shale is abundant in nanoscale pores, so gas flow in shales cannot be simply represented by Darcy formula anymore.
It is crucial to figure out the influence of gas flow in nano/micro pores on actual productivity, which can provide basic theories for optimizing parameters and improving the gas production from engineering perspective.
This paper considers the effects of slippage and diffusion in nanoscale based on Beskok-Karniadakis (BK) equation, which can be applicable for different flow regimes including continuum flow, slip flow, transition flow, and free-molecule flow.
A new non-Darcy equation was developed based on the analysis of effects of high order terms of BK equation on permeability correction factor.
By using the conformal transformation principle and pressure coupling method, we established the productivity formula of fractured well (infinite and limited conductivity) satisfying mass variable seepage flowing in fractures.
The simulation results have been compared with field data and influencing parameters are analyzed thoroughly.
It is concluded that slippage effect affects gas production of fractured well when wellbore pressure is less than 15 MPa, and the effects of slippage and diffusion have greater influence on gas production of fractured well for reservoir with smaller permeability, especially when permeability is at nano-Darcy scale.
American Psychological Association (APA)
Huang, Ting& Guo, Xiao& Wang, Kun. 2015. Nonlinear Seepage Model of Gas Transport in Multiscale Shale Gas Reservoirs and Productivity Analysis of Fractured Well. Journal of Chemistry،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1067418
Modern Language Association (MLA)
Huang, Ting…[et al.]. Nonlinear Seepage Model of Gas Transport in Multiscale Shale Gas Reservoirs and Productivity Analysis of Fractured Well. Journal of Chemistry No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1067418
American Medical Association (AMA)
Huang, Ting& Guo, Xiao& Wang, Kun. Nonlinear Seepage Model of Gas Transport in Multiscale Shale Gas Reservoirs and Productivity Analysis of Fractured Well. Journal of Chemistry. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1067418
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067418