Method and device for fluid displacement
US7610963B2 · kind B2 · utility
1Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 26, 2005 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Oct 26, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and device for displacement of a first fluid by means of a second fluid in a borehole (1) in the ground, where, during displacement, the second fluid is kept separate from the first fluid, and where the volume of an expandable space (22) in which the second fluid is to be located following the displacement, increases during inflow of the second fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.