System and method for assessing the presence of hydrocarbons in a subterranean reservoir based on seismic inversions
US10718876B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2018 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Jun 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/665
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A computer-implemented method is described for a manner of geologic analysis using time-lapse seismic data. The method includes steps of receiving a first seismic attribute volume inverted from a seismic dataset recorded at a first time, a second digital seismic attribute volume inverted from a seismic dataset recorded at a second time, and a range of geological and geophysical parameters possible in the subsurface volume of interest; identifying a layer and area of interest; computing an attribute difference volume from the seismic attribute volumes; performing probabilistic attribute analysis of at least two of the first digital seismic attribute volume, the second digital seismic attribute volume, and the attribute difference volume using the range of geological and geophysical parameters; estimating time-lapse reservoir properties based on the probabilistic attribute analysis; and outputting visual information depicting the time-lapse reservoir properties via a user interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.