Multi-scale manifold learning for full waveform inversion
US10353093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2017 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jan 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/679
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for analyzing acoustic/elastic waves to determine subsurface structure of the earth includes receiving a plurality of observations of a seismic acoustic/elastic wave-field from a plurality of sensors; generating a plurality of Bernstein grids of differing resolutions; calculating a data misfit of the plurality of observations with respect to an initial subsurface structure model defined in terms of conic combinations of Bernstein polynomials on a lowest resolution Bernstein grid, and mapping the data misfit from the Bernstein grid onto a Lagrangian grid; updating the subsurface structure model by minimizing the data misfit between the plurality of observations and observations obtained by a simulation; increasing resolution of the Bernstein grid and recomputing the updated subsurface structure model on the increased resolution Bernstein grid; and mapping the recomputed subsurface structure model onto the Lagrangian grid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.