Device for regulating injection pressure in enhanced oil recovery
US10352141B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Feb 22, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Oct 21, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pressure regulating device for the injection of an aqueous polymer solution into an oil well, the device consisting of a series of straight tubes each with a pressure gauge, each tube being separated by a valve, where the valves are gate valves and/or needle valves. A method to reduce the injection pressure of an aqueous polymer solution according to the pressure of the well using the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.