The investigation of fracture aperture effect on shale gas transport using discrete fracture model

Mi, Lidong; Jiang, Hanqiao; Li, Junjian; Li, Tao; Tian, Ye

doi:10.1016/j.jngse.2014.09.029

Cited by 34 publications

(6 citation statements)

References 8 publications

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“…The value of conformal mapping and spectral solutions is in their relative simplicity and in developing an understanding of the process, while the finite element techniques in COMSOL TM can be used to extend this understanding to non-homogeneous media situations. The techniques are not limited to withdrawal flows but can be used for any situation with a free surface or interface, and the spectral techniques provide an alternative to the more traditional methods of boundary element methods such as presented in Mi and Jiang et al [13].…”

Section: Discussionmentioning

confidence: 99%

A spectral modelling approach for fluid flow into a line sink in a confined aquifer

Al-Ali

Hocking²,

Farrow³

et al. 2021

Eur. J. Appl. Math

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A spectral method is developed to study the steady and unsteady flow of fluid into a line sink from a horizontally confined aquifer, and the results are compared to solutions obtained implementing the finite element package COMSOLTM. The aquifer or drain is considered to be confined below so that the solutions are fundamentally unsteady. Comparison is made between the two methods in determining the drawdown of the surface.

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Section: Discussionmentioning

confidence: 99%

A spectral modelling approach for fluid flow into a line sink in a confined aquifer

Al-Ali

Hocking²,

Farrow³

et al. 2021

Eur. J. Appl. Math

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“…MI LiDong 1,2,3 , JIANG HanQiao 3 The complex fracture network brings great challenge to the numerical simulation of shale gas reservoirs. Based on the discrete fracture model (DFM), micro scale model and field scale model are established to investigate the influence of fracture types on the reservoir performance when the correspondence of matrix permeability and fracture aperture is different.…”

Section: Evaluation and Selection Of Numerical Simulation Methods Formentioning

confidence: 99%

Evaluation and selection of numerical simulation methods for shale gas reservoirs

Jiang

et al. 2018

Sci. Sin.-Tech.

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“…Above works consider the fracture networks as an integral system to simulate. However, for fractured rocks, the flow dynamics is significantly predominated by largescale fractures; this characteristic has a great impact on the propagation of hydraulic fractures and the flow capacity of porous media (Liang et al 2016;Mi et al 2014). As a result, large-scale fractures should be quantified more accurately than a large number of small-scale fractures.…”

Section: Complex Fracture Model Constructionmentioning

confidence: 99%

Calibrate complex fracture model for subsurface flow based on Bayesian formulation

Zhang

et al. 2019

Pet. Sci.

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In practical development of unconventional reservoirs, fracture networks are a highly conductive transport media for subsurface fluid flow. Therefore, it is crucial to clearly determine the fracture properties used in production forecast. However, it is different to calibrate the properties of fracture networks because it is an inverse problem with multi-patterns and highcomplexity of fracture distribution and inherent defect of multiplicity of solution. In this paper, in order to solve the problem, the complex fracture model is divided into two sub-systems, namely "Pattern A" and "Pattern B." In addition, the generation method is grouped into two categories. Firstly, we construct each sub-system based on the probability density function of the fracture properties. Secondly, we recombine the sub-systems into an integral complex fracture system. Based on the generation mechanism, the estimation of the complex fracture from dynamic performance and observation data can be solved as an inverse problem. In this study, the Bayesian formulation is used to quantify the uncertainty of fracture properties. To minimize observation data misfit immediately as it occurs, we optimize the updated properties by a simultaneous perturbation stochastic algorithm which requires only two measurements of the loss function. In numerical experiments, we firstly visualize that small-scale fractures significantly contribute to the flow simulation. Then, we demonstrate the suitability and effectiveness of the Bayesian formulation for calibrating the complex fracture model in the following simulation.

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The investigation of fracture aperture effect on shale gas transport using discrete fracture model

Cited by 34 publications

References 8 publications

A spectral modelling approach for fluid flow into a line sink in a confined aquifer

A spectral modelling approach for fluid flow into a line sink in a confined aquifer

Evaluation and selection of numerical simulation methods for shale gas reservoirs

Calibrate complex fracture model for subsurface flow based on Bayesian formulation

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