Method for determining tracer concentration in oil and gas production fluids
US7347260B2 · kind B2 · utility
48Cited by
17References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2005 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Oct 24, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/11
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for determining the extent of recovery of materials injected or otherwise introduced into oil wells or subsurface formations is practiced using a portable device. The portable device can also be used to determiner the occurrence of a predetermined condition in an oil well such as water break through in a production zone, or the opening or closing of a sliding sleeve. When, for example, water breakthrough is detected, the zone producing too much water can be plugged, using, for example, a flow-through bridge plug, if there are other producing zones further downhole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.