System and method for fluid composition characterization
US9921204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | May 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3129
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for predicting fluid composition in a reservoir formation are disclosed. To accurately and efficiently predict the composition of a sample fluid, an absorption spectrum is obtained over a prefixed set of wavelength channels and a set of basis spectra is received for all constituents of interest in the sample fluid. A set of a-priori constraints on the obtained absorption spectrum and constituent properties to be determined is then obtained, before calculating a joint probability distribution of all constituents of interest based on the obtained spectrum, basis spectra and a-priori constraints. In one embodiment, qualitative states are also computed for all constituents of interest based on the obtained spectrum, basis spectra and a-priori constraints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.