Method for generating a hex-dominant mesh of a geometrically complex basin
US8674984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Aug 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/006
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for generating a mesh of a subterranean medium comprising at least one sedimentary layer crossed by at least one fault. The at least one layer is delimited vertically by two geological horizons discretized by two triangulated three-dimensional surfaces. For each horizon, a three-dimensional gridded surface is constructed by means of isometric unfolding accounting for the presence of the fault. Next, the mesh of the subterranean medium is generated by generating cells by creating links between the three-dimensional gridded surfaces. To do this, nodes of the first gridded surface that are situated on one side of the fault which differs from the side of a node of the second gridded surface having the same coordinates i, j are detected. Each non-detected node is joined with a node of the second gridded surface having the same coordinates i, j, and each detected node is joined with the fault by considering a direction of a neighboring node. Finally, the cells having at least two vertices in common are regularized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.