Method of constraining an inversion in the characterisation of the evolution of a subsurface volume
US10705237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2015 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/612
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for characterizing the evolution of a subsurface volume over time. The method comprises providing a first and second surveys of the reservoir with a first and second sets of seismic traces, performing an inversion to obtain estimates of changes having occurred between said first time and said second time in terms of at least one model parameter; wherein the subsurface volume is divided into regions according to a high order discrete classification attributed in accordance with the region's geologic characteristics, and said inversion is constrained per region of subsurface volume. The regions of subsurface volume may be geological layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.