Methods and systems for recovering oil from subterranean reservoirs
US10767456B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Apr 29, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and system for recovering oil from a subterranean reservoir. The method includes delivering an injection gas through an injection flow path into a plurality of regions of the reservoir via a plurality of outflow devices arranged along the injection flow path, producing oil from a plurality of regions of the subterranean reservoir via a production flow path with a plurality of inflow devices arranged along the production flow path, and restricting flow of the injection gas into the production flow path from the reservoir. The restricting of the flow in injection gas may be by choking the flow of the injection gas through at least one of the plurality of inflow devices such that the residence time of the injection gas within the subterranean reservoir is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.