Linear-slip discrete fracture network model and multiscale seismic wave simulation

Cho, Yongchae; Gibson, Richard L.; Lee, Jaejoon; Shin, Choonsung

doi:10.1016/j.jappgeo.2019.03.006

Cited by 16 publications

(9 citation statements)

References 21 publications

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“…Homogenization methods have the advantage of a lower computational cost. On the other hand, methods that numerically evaluate the contribution of fine scales to the macroscopic model can be more flexible with respect to the mesh geometry [346].…”

Section: Homogenization and Multiscale Methodsmentioning

confidence: 99%

Numerical modeling of mechanical wave propagation

Seriani

Oliveira

2020

Riv. Nuovo Cim.

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The numerical modeling of mechanical waves is currently a fundamental tool for the study and investigation of their propagation in media with heterogeneous physical properties and/or complex geometry, as, in these cases, analytical methods are usually not applicable. These techniques are used in geophysics (geophysical interpretation, subsoil imaging, development of new methods of exploration), seismology (study of earthquakes, regional and global seismology, accurate calculation of synthetic seismograms), in the development of new methods for ultrasonic diagnostics in materials science (non-destructive methods) and medicine (acoustic tomography). In this paper we present a review of numerical methods that have been developed and are currently used. In particular we review the key concepts and pioneering ideas behind finite-difference methods, pseudospectral methods, finite-volume methods, Galerkin continuous and discontinuous finite-element methods (classical or based on spectral interpolation), and still others such as physics-compatible, and multiscale methods. We focus on their formulations in time domain along with the main temporal discretization schemes. We present the theory and implementation for some of these methods. Moreover, their computational characteristics are evaluated in order to aid the choice of the method for each practical situation.

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Section: Homogenization and Multiscale Methodsmentioning

confidence: 99%

Numerical modeling of mechanical wave propagation

Seriani

Oliveira

2020

Riv. Nuovo Cim.

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“…We propose a novel approach to modeling the inclined fractures on structural grids. The previously published methods [16,17] allow modeling in the case only, where the fracture boundary coincides with the cell boundaries (nodes) of the difference grid. In this work, we use two layers of nodes to explicitly define the fracture in order to correctly set the boundary conditions on the fracture [16].…”

Section: Model Of a Fracturementioning

confidence: 99%

“…Recently, the discontinuous Galerkin (DG) method has also been widely used to solve the problems of modeling the propagation of seismic waves. For example, in [17,18], it is used to model the wave fields in the fractured media using an explicit fracture model. The method is also built on unstructured meshes.…”

Section: Introductionmentioning

confidence: 99%

Novel Approach to Modeling the Seismic Waves in the Areas with Complex Fractured Geological Structures

Хохлов

Stognii

2020

Minerals

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This paper presents a novel approach to modeling the propagation of seismic waves in a medium containing subvertical fractured inhomogeneities, typical for mineralization zones. The developed method allows us to perform calculations on a structural computational grid, which avoids the construction of unstructured grids. For the calculations, the grid-characteristic method is used. We also present a comparison of the proposed method with the one described at earlier works and discuss the areas of its practical application. As an example, the numerical results for a cluster of subvertical fractures are given. A new approach for modeling fractures makes it quite easy to incorporate fractured objects into the seismic models and perform calculations without using algorithms on unstructured and curved grids.

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“…The presented study only utilizes production history data and reservoir simulation to calibrate the hydraulic fracture parameters. However, integrating recently advanced measurements and techniques such as distributed acoustic sensor (DAS), distributed temperature sensor (DTS) [17,28,29], and seismic wave information [30][31][32] would definitely help better understand geometry and properties of hydraulic fractures.…”

Section: Parametersmentioning

confidence: 99%

Stimulated Reservoir Volume Characterization and Optimum Lateral Well Spacing Study of Two-Well Pad: Midland Basin Case Study

Park

Janova²

2020

Geofluids

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This paper introduces a flow simulation-based reservoir modeling study of a two-well pad with long production history and identical completion parameters in the Midland Basin. The study includes building geologic model, history matching, well performance prediction, and finding optimum lateral well spacing in terms of oil volume and economic metrics. The reservoir model was constructed based on a geologic model, integrating well logs, and core data near the target area. Next, a sensitivity analysis was performed on the reservoir simulation model to better understand influential parameters on simulation results. The following history matching was conducted with the satisfactory quality, less than 10% of global error, and after the model calibration ranges of history matching parameters have substantially reduced. The population-based history matching algorithm provides the ensemble of the history-matched model, and the top 50 history-matched models were selected to predict the range of Estimate Ultimate Recovery (EUR), showing that P50 of oil EUR is within the acceptable range of the deterministic EUR estimates. With the best history-matched model, we investigated lateral well spacing sensitivity of the pad in terms of the maximum recovery volume and economic benefit. The results show that, given the current completion design, the well spacing tighter than the current practice in the area is less effective regarding the oil volume recovery. However, economic metrics suggest that the additional monetary value can be realized with 150% of current development assumption. The presented workflow provides a systematic approach to find the optimum lateral well spacing in terms of volume and economic metrics per one section given economic assumptions, and the workflow can be readily repeated to evaluate spacing optimization in other acreage.

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Linear-slip discrete fracture network model and multiscale seismic wave simulation

Cited by 16 publications

References 21 publications

Numerical modeling of mechanical wave propagation

Numerical modeling of mechanical wave propagation

Novel Approach to Modeling the Seismic Waves in the Areas with Complex Fractured Geological Structures

Stimulated Reservoir Volume Characterization and Optimum Lateral Well Spacing Study of Two-Well Pad: Midland Basin Case Study

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