Method for constructing a fracture network grid from a Voronoi diagram
US9103194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Oct 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V11/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for optimizing the development of a fluid deposit using a fracture network grid constructed from a Voronoi diagram.Based on observations of the deposit a discrete fracture network is constructed in which each fracture is represented by an isotropic polygonal finite plane in terms of its dynamic properties, a plane comprising segments of intersection with other network fractures. A Voronoi diagram is constructed on each fracture plane by positioning Voronoi cell centers on the segments of intersection, and the transmissivities are calculated between centers of neighboring cells from the ratio between the surface area of the neighboring cells and the distance between the neighboring cells. The cells and transmissivities can then be used to construct an image of the fluid deposit. Finally, this image and a flow simulator are used to optimize the development of the fluid deposit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.