Methods and systems for calculating and evaluating value of information for reservoir fluid models derived from DFA tool data
US10989835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | May 16, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for deriving VOI for a hydrocarbon-bearing reservoir fluid model based on DFA data (“true fluid model”) versus an “incorrect fluid model” includes calculating first, second and third objective functions that are based on NPV(s) of simulated production by a reservoir simulator with different configurations. For the first objective function, the simulator is configured with the incorrect fluid model and control variables that are optimized to derive a first group of control variable values. For the second objective function, the simulator is configured with the true fluid model and the first group of control variable values. For the third objective function, the simulator is configured with the true fluid model and control variables that are optimized to identify a second group of control variable values. The objective functions can be deterministic, or can include statistics that account for uncertainty. A visualization of such results with uncertainty is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.