Method for estimating elastic parameters of subsoil
US11119233B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/6242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A subsoil region is represented using a grid having columns of cells arranged in an array of horizontal positions. The cells of a column are delineated by geological layering of the subsoil region. The method, used for estimating elastic parameters in the subsoil region, comprises obtaining seismic traces and performing seismic inversion for the columns of cells. The seismic inversion for a column comprises selecting a set of elastic parameter values that minimizes a cost function regardless of statistical distribution of the elastic parameter values. The set of elastic parameter values is selected among a plurality of candidate sets of elastic parameter values each having values of elastic parameters for the cells of the column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.