Optimized chemical enhanced recovery method
US9719335B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jul 6, 2011 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jul 15, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An enhanced recovery method that optimizes the stages of pumping, transport and surface treatment of the production effluent, during which a sweep fluid having at least one polymer so as to displace hydrocarbons towards a production well is injected into a reservoir, the resulting production effluent having hydrocarbons is collected through the production well, and a degradation agent for a polymer within the sweep fluid is injected into the effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.