Exploiting structure for natural gas hydrate reservoir and exploiting method for natural gas hydrate by injecting hydraulic calcium oxide via gas fracturing
US11499407B2 · kind B2 · utility
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Key dates
| Filing date | Jul 30, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Sep 30, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for exploiting a natural gas hydrate reservoir includes drilling a borehole entering the natural gas hydrate reservoir; perforating the borehole to form perforations; fracturing the natural gas hydrate reservoir via the perforations by using a gas containing calcium oxide powder having a particle size 0.001 to 10 mm to generate a fracture; and collecting natural gas released by the natural gas hydrate. The method is easy to operate, cost-effective, and suitable for commercial applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.