Determination of estimated maximum recoverable (EMR) hydrocarbons in unconventional reservoirs
US11740381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2021 |
| Grant date | Aug 29, 2023 |
| Priority date | — |
| Expiry date | Jul 9, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining maximum recoverable hydrocarbon (EMR) in a tight reservoir is disclosed. The method includes determining, based on downhole logs, a total measure of hydrocarbon amount within the tight reservoir, determining, by at least attributing fluid loss during core surfacing of the core sample to hydrocarbons, a non-recoverable measure of hydrocarbon amount within a core sample of the tight reservoir, and determining an EMR measure based on the total measure of hydrocarbon amount and the non-recoverable measure of hydrocarbon amount, wherein during the core surfacing pore pressure reduces from a reservoir condition to a surface condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.