Pressure pulse assisted injection water flooding processes for carbonate reservoirs
US10738233B2 · kind B2 · utility
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Key dates
| Filing date | May 10, 2017 |
| Grant date | Aug 11, 2020 |
| Priority date | — |
| Expiry date | May 10, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for recovering oil from a hydrocarbon-bearing reservoir using pressure pulse injections of an aqueous salt solution is provided. The aqueous salt solution includes one or more salts suitable for enhancing oil recovery in carbonate reservoirs and has a salinity in the range of about 5,000 parts-per-million (ppm) total dissolved solids (TDS) to about 7,000 ppm TDS. The aqueous salt solution may be injected into a reservoir using continuous or periodic pressure pulse injections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.