Steam-enhanced hydrocarbon recovery using hydrogen sulfide-sorbent particles to reduce hydrogen sulfide production from a subterranean reservoir
US12140009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Aug 3, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method is provided for producing hydrocarbons from a subterranean reservoir. A mixture of steam and H2S-sorbent particles (e.g., nanoparticles) is injected into the subterranean reservoir. This may be performed during the steam phase of a steam injection operation, such as steam assisted gravity drainage (SAGD), steam flooding, or cyclic steam stimulation, which is performed on the reservoir. The injected steam reduces the viscosity of the hydrocarbons in the subterranean formation. The injected H2S-sorbent particles attach to the subterranean reservoir and adsorb H2S therein. The hydrocarbons are produced to the surface, without producing the H2S-sorbent particles with adsorbed H2S that remain attached to the subterranean reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.