Methods and apparatus for analysis of downhole compositional gradients and applications thereof
US7822554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system are provided for characterizing a reservoir of interest by comparing measured downhole fluid analysis measurement data with predicted downhole fluid analysis measurement data for the corresponding depth within the reservoir. The downhole fluid analysis measurement data may comprise the results of compositional analysis, gas-oil ratio measurements, and spectrophotometry measurements. The compositional analyses may be delumped to characterize the compositional components of the downhole fluid and equations of state may be used to predict compositional gradients and fluid properties with depth. The method and system enable the user to characterize a reservoir as to its states of compartmentalization and equilibrium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.