Method of modified facies proportions upon history matching of a geological model
US8712746B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2010 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Nov 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/665
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of modifying a geological model representative of an underground reservoir is disclosed which respects average proportions of the lithologic facies imposed by a production data calibration process which has application to petroleum reservoir development. A geographical zone Z is defined within the geological model and an average proportion in zone Z allowing the production data to be calibrated is determined for k facies, with an optimization process. The proportions of these facies are modified using a block indicator cokriging method constrained by the average proportions to be respected. A new geological model constrained by the modified facies proportions is simulated and the development of the underground medium is optimized by the simulated model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.