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Model representation by tessellation

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Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-0600
... tessellation application upstream oil & gas tessellated region tessellated domain Computation of gravity response over basin of fractal geometry V. P. Dimri , Ravi P. Srivastava and Nimisha Vedanti National Geophysical Research Institute, Uppal Road, Hyderabad 500 007 Summary In gravity modeling...
Proceedings Papers

Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-146
... boundary conditions in detailed inelastic simulations that may be carried out by special purpose finite element or distinct element codes. Integration of seismic activity with numerical modelling requires appropriate representations of rock mass damage and efficient solutions of complex, multi-step mining...
Proceedings Papers

Paper presented at the 1997 SEG Annual Meeting, November 2–7, 1997
Paper Number: SEG-1997-1363
... ABSTRACT No preview is available for this paper. depth migration triangulated surface reservoir characterization information post-stack depth migration coherency inversion velocity model grid representation tessellated model reflector geometry upstream oil & gas...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-125
... to capture the correct mechanics of HFs interaction, such as stress shadowing effects. Representation of pre-existing joints within Voronoi tessellated DEM models by means of DFNs, would allow for simulation of hydraulic fracturing in fractured rock masses. While the deficiencies of the DEM method in terms...
Proceedings Papers

Paper presented at the 1993 SEG Annual Meeting, September 26–30, 1993
Paper Number: SEG-1993-0170
... ABSTRACT No preview is available for this paper. reservoir characterization velocity field salt structure topological information tessellation rendering representation upstream oil & gas data structure pointer vertex member function weiler depth migration velocity model...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5873054
... Earth models typically comprise wireframe surfaces of tessellated triangles, e.g. Fig. 1. The wireframe surfaces represent the contacts between rock units. This representation allows for flexible and efficient generation of complicated geological structures. Therefore, a natural ap- proach...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-116
...-3-9503898-1-4 element method, and discrete element method. In terms of explicit representation of heterogeneous material at microscopic scale, it would appear more desirable to make use of a polygonal grain-based micromechanical model to adopt other numerical models assuming obscure constitutive...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-190
... as instances of realizable random crack paths within a random field representation of the heterogeneous continuum material. A desirable feature of this approach for modeling fracture is that the face network provides a convenient discretized surface from which to model the fluid flow within the fracture...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1103
... to incorrect estimations of the rock strength. This study evaluates how different representations of the grain structure, in terms of grain geometry and grain arrangement influence predictions of brittle rock mechanical behavior. Different 2D Bonded Block Models of granite specimens were generated and used...
Proceedings Papers

Paper presented at the 1988 SEG Annual Meeting, October 30–November 3, 1988
Paper Number: SEG-1988-0698
... ABSTRACT No preview is available for this paper. geologic modeling operator geological modeling representation fault line vertex table general geologic modeling system 2 reservoir characterization simpson university uniform shear deformation displacement profile modeling...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-479
... in the computer program GEOFRAC, which incorporates algorithms for representation of fracture systems in different geologic settings, including folds, faults, and central structures. Application of the model to the Permian reservoir in the Yates field in Texas includes geomechanical analysis of fracture evolution...
Journal Articles
Journal: SPE Journal
SPE J. 18 (02): 264–273.
Paper Number: SPE-146989-PA
Published: 31 December 2012
... displacement)—and the reservoir model described earlier; the simulation is run for 2,000 days. Fig. 3 shows three different tessellations used for the convergence study; the sizes of the simplexes vary from large ( V γ = 0.7 , Fig. 3a ) to relatively small ( V γ = 0.021 , Fig...
Proceedings Papers

Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-211
... of fracture intersections for DFN and DEM models. Representation of rock mass properties and behaviour as an equivalent continuum. Representation of interface behaviour. Scale & time effects Large-scale computational capacities. Industry Project This industry-sponsored project seeks to address...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146989-MS
... mixture – System 2 (immiscible displacement) and the reservoir model described earlier; the simulation is run for 2000 days. Figure 4 shows three different tessellations used for the convergence study; the sizes of the simplexes vary from very large (L γ = 0.7), Figure 4 (a) to relatively small...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2015
Paper Number: URTEC-2155064-MS
... tessellated surfaces are readily available numerically. The tessellated surfaces can be saved as TSURF files and imported into standard seismic visualization software and DFN (Discrete Fracture Network) modeling software. Fracture orientation statistics are easily obtained from the computed surfaces...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-568
... of rock. This study investigates the effect of grain contact strength heterogeneity on brittle rock failure. Based on a two-scale tessellation technique in an open source code Neper, a 3DEC grain-based modeling (GBM) approach considering inter- and intra-grain contact failures is used to study the brittle...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-821
... variety of brittle fracture modelling methods, including simple boundary element, distinct element approaches with Voronoi/Trigon tessellation, particle flow codes, hybrid finite-discrete element, and lattice spring approaches, in some case in both 2D and 3D. Based on our experience in using all the major...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1467
... and Konietzky, 2014, and Chen et al., 2015, considered contact deformation and inter- and intragranular fracturing. On the other hand, Xiao and Yin, 2016, modelled the random structure of porous media using Voronoi tessellations. Thus, this technique seems appropriate for the concerned problem...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0716
... emphasize distinct rock units and the contacts be- tween them. We are developing and researching several possible methods for parameterizing 3D contact surfaces. One approach is to use a wireframe of nodes connected into tessellated triangles, as is typically used in geological models. Another option...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27335-MS
.... Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of OTC copyright. Abstract This paper demonstrates the application of a 3-D random lattice model based on Voronoi tessellation...

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