Method for extracting downhole flow profiles from tracer flowback transients
US10253619B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2013 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Jun 26, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V9/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A production pipe arrangement for a producing petroleum well with at least one of the well fluids (oil, gas, or water) with influx fluids two or more influx zones or influx locations to a production flow in a central production pipe in said well, with tracer sources with distinct tracer materials in known levels of the well, one or more separate delay chambers arranged as a completion component in said pipe, the delay chambers provided with said one or more of the tracers sources arranged in an annular space formed between the completion pipe and a borehole wall, with at least one of said tracer sources arranged exposed to the fluids in at least one of said influx zones, the delay chambers having one or more apertures to the fluid flow in said central pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.