Targeted tracer injection with online sensor
US12378875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Sep 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is a method, a system, tools for use by the system, and an interpretation method for injecting and detecting tracers and conducting flow characterizing of a petroleum well. The method describes monitoring of travel time and slip velocity between two/three different phases (oil/water and possibly gas) in the well. The travel time and slip velocity are determined using an injection too for injection of an over pressurized injection of the partitioning tracers each of which would follow certain phase. The tracers are detected by an optical detection probe in the pipe. The slip velocity is obtained from the difference of travel time of two tracers which partition to two different phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.