Discrete fracture modeling for fractured reservoirs using Voronoi grid blocks

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dc.contributorSchechter, David
dc.creatorGross, Matthew Edward
dc.date.accessioned2007-09-17T19:32:23Z
dc.date.accessioned2017-04-07T19:53:16Z
dc.date.available2007-09-17T19:32:23Z
dc.date.available2017-04-07T19:53:16Z
dc.date.created2003-05
dc.date.issued2007-09-17
dc.description.abstractFractured reservoirs are commonly simulated using the Dual Porosity model, but for many major fields, the model does not match field results. For these cases, it is necessary to perform a more complex simulation including either individual fractures or pseudofracture groups modeled in their own grid blocks. Discrete Fracture Modeling (DFN) is still a relatively new field, and most research on it up to this point has been done with Delaunay tessellations. This research investigates an alternative approach using Voronoi diagrams, yet applying the same DFN principles outlined in previous works. Through the careful positioning of node points, a grid of Voronoi polygons can be produced so that block boundaries fall along the fractures, allowing us to use the DFN simulation methods as proposed in the literature. Using Voronoi diagrams allows us to use far fewer polygons than the Delaunay approach, and also allows us to perfectly align flow so as to eliminate grid alignment errors that plagued previous static systems. The nature of the Voronoi polygon further allows us to simplify permeability calculations due to orthogonality and, by extension, is more accurate than the commonly used cornerpoint formulation for non-square grid blocks.
dc.identifier.urihttp://hdl.handle.net/1969.1/5777
dc.language.isoen_US
dc.publisherTexas A&M University
dc.subjectfractured
dc.subjectmodeling
dc.subjectvoronoi
dc.titleDiscrete fracture modeling for fractured reservoirs using Voronoi grid blocks
dc.typeBook
dc.typeThesis

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