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Keywords: grid
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Proceedings Papers
Hui Liu, Xinwei Liao, Knut-Andreas Lie, øystein Klemetsdal, Kai Bao, Xiaoliang Zhao, August Johansson, Xavier Raynaud
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212171-MS
... or nonplanar fractures and faults, we construct highquality 3D grids conforming to wells, hydraulic fractures, faults, and dominating natural fractures. We ensure sufficient mesh quality near important features using transfinite interpolation near wells and hydraulic fractures, combined with adaptive...
Proceedings Papers
Matthew Szyndel, Christopher Lemon, Daniel de Brito Dias, Eamon Dodds, Eduard Khramchenkov, Simone Rinco, Soham Sheth, Matei Tene, Choongyong Han, Xundan Shi, Christian Wolfsteiner, Hui Cao, Terrence Liao, Michael Sekachev, Rustem Zaydullin
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212205-MS
... engineering approaches that enable the team to achieve and maintain this in the future. In addition, we present test outcomes and discuss how to achieve excellent performance. To our knowledge, no simulator capable of both CPU simulation and full GPU simulation (meaning simulation with no copies of full grid...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212194-MS
... Abstract Projection-based embedded discrete fracture models (pEDFMs) are proven effective for modeling flow barrier effects of high-conductivity or impermeable fractures. However, local grid refinements are still needed to improve the accuracy of simulation in flow areas near fractures...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212165-MS
... processor computational efficiency reaction geochemical modeling utcomp-iphreeqc matrix acidizing equation grid porosity comparison conservation equation concentration Introduction Matrix acidizing is a stimulation technique to improve well productivity through injecting acid below...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212163-MS
... and well planning. The main focus in this paper is on Troll Oil simulation model. The effects of hardware and software technology developments are discussed. This includes challenges due to field size, geology, communications, thin oil zone, horizontal wells, gridding, numerics, CPU etc. Troll reservoir...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, March 28–30, 2023
Paper Number: SPE-212213-MS
... Enhancing the accuracy of flow simulations on non-K-orthogonal grids has been an objective of a plethora of consistent discretization methods in the literature. Providing a review of extensive literature on consistent discretization methods is well beyond the scope of this paper. Rather, we focus...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203958-MS
... Abstract Mechanical deformation induced by injection and withdrawal of fluids from the subsurface can significantly alter the flow paths in naturally fractured reservoirs. Modeling coupled fluid-flow and mechanical deformation in fractured reservoirs relies on either sophisticated gridding...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203903-MS
... boundary condition flux reservoir characterization upstream oil & gas tensor vector reservoir simulation calculation coefficient tchelepi reservoir geomechanics approximation tangential projection application terekhov equation matrix grid gradient interface Introduction...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203908-MS
... Abstract An unstructured grid generation method is presented that automates control-volume boundary alignment to geological objects and control point alignment to complex wells. The grid generation method is coupled with an iterative acute mesh reconstruction technique, to construct essentially...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203907-MS
... are able to match statistics for a simple flow problem on the fine grid with high accuracy and at much lower cost on a scale of coarser grids. bayesian inference sampler scaling method reservoir simulation machine learning optimization problem coarse level artificial intelligence upstream oil...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203902-MS
... Abstract In this paper, we introduce an efficient method to generate reservoir simulation grids and modify the fault juxtaposition on the generated grids. Both processes are based on a mapping method to displace vertices of a grid to desired locations without changing the grid topology...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203961-MS
... Abstract Combining the Perpendicular Bisector (PEBI) grids with the Two Point Flux Approximation (TPFA) scheme demonstrates a potential to accurately model on unstructured grids, conforming to the geological and engineering features of real grids. However, with the increased complexity...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203959-MS
... 3 d η , θ 4 , η n + d η ) . One-Dimensional Finite Difference Computation As the length-scale for the capillary diffusion process can be much smaller than the grid size, it can yield an inaccurate imbibition rate from fracture to matrix. To improve numerical...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203949-MS
... Abstract Solving the equations governing multiphase flow in geological formations involves the generation of a mesh that faithfully represents the structure of the porous medium. This challenging mesh generation task can be greatly simplified by the use of unstructured (tetrahedral) grids...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193825-MS
... We have developed a fit-for-purpose multiphysics domain-decomposition algorithm for modeling the interactions between the reservoir flow/geomechanics and hydraulic-fracture propagation grids based on the mortar element method ( Bernardi et al. 1993 ). The implementation can be extended...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193839-MS
... these three variables. Let us start by introducing a computational grid T of the domain Ω ⊂ R d and denoting ∂ T as a tessellation of the boundary ∂Ω. In classical cell-centered finite volume method the unknown function is approximated by a piece-wise constant function, which takes average value...
Proceedings Papers
Mun-Hong Hui, Gaelle Dufour, Sarah Vitel, Pierre Muron, Reza Tavakoli, Matthieu Rousset, Alvaro Rey, Bradley Mallison
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193827-MS
... grid within a structured matrix grid. However, small fracture cells with high conductivity that pose a challenge for simulators can arise and ad hoc strategies to remove them can alter connectivity or fail for field-scale cases. We present a new gridding algorithm that controls the geometry...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193850-MS
... Abstract A novel approach is introduced for simulation of multiphase flow, geomechanics, and fracture propagation on very general semi-structured grids. Complex networks consisting of both natural and hydraulically stimulated fractures are able to be represented using a diffusive zone model...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193870-MS
... stage. State-of-the-art multilevel preconditioners use a sequence of aggressive restriction, coarse-grid correction and prolongation operators to handle low-frequency modes on the coarse grid. High-frequency errors are then resolved by employing a smoother on fine grid. In this paper, the algebraic...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193871-MS
... in the sector model; consequently, the full-field results will not be reproduced. Compact Contour The compact contour, which defines the boundary of the sector, within a structured grid, is represented as C k 1 I − k 2 , which is an ordered list of (i,j) coordinates. (1...
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