Well Test-Derived Permeability in Naturally Fractured Reservoirs with Heterogeneous and Disconnected Fractures

Freites, Alfredo; Geiger, Sebastian; Corbett, Patrick William Michael

doi:10.3997/2214-4609.201901626

81st EAGE Conference and Exhibition 2019 2019

DOI: 10.3997/2214-4609.201901626

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Well Test-Derived Permeability in Naturally Fractured Reservoirs with Heterogeneous and Disconnected Fractures

Alfredo Freites¹,

Sebastian Geiger²,

Patrick William Michael Corbett³

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2024

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New correlations to estimate the rough fracture permeability using computational fluid dynamics simulation

Valizadeh,

Ghaedi,

Hemmati

et al. 2024

J Petrol Explor Prod Technol

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In fractured reservoirs, the fracture network provides the main path for fluid flow. Appropriate estimation of the fracture permeability influences the precise prediction of the reservoir’s future performance. Commonly, for a known geometry of natural or induced fracture, the permeability is estimated by applying local cubic law. One major drawback of this approach is that the fracture surface roughness, which has a significant effect on fracture permeability, is not considered. Moreover, the knowledge about the impact of fracture surface roughness on fracture permeability is not currently sufficient. In this research, the fluid flow in fractures with rough-walled surfaces was studied using computational fluid dynamics. For this purpose, the fluid flow through fractures was simulated by applying appropriate roughness for fracture walls. Furthermore, two correlations, based on response surface methodology and power-law models, were proposed to predict fracture permeability as a function of four independent variables (surface roughness, fracture aperture, angle, and porosity). The results of the two presented correlations were validated, and the statistical analysis indicates that both models are appropriate to predict fracture permeability. The findings of this study will be of great assistance with understanding and characterization of the fluid flow in rough fractures and can be used in future works.

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New correlations to estimate the rough fracture permeability using computational fluid dynamics simulation

Valizadeh,

Ghaedi,

Hemmati

et al. 2024

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

show abstract

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Well Test-Derived Permeability in Naturally Fractured Reservoirs with Heterogeneous and Disconnected Fractures

Cited by 1 publication

References 0 publications

New correlations to estimate the rough fracture permeability using computational fluid dynamics simulation

New correlations to estimate the rough fracture permeability using computational fluid dynamics simulation

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