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Definition
Сased-hole logging technique assessing the borehole flow profile (PLT-BFP) and reservoir flow profile (PLT-RFP).
The survey is performed with a multi-sensor donwhole PLT Logging Tool and interpreted with PLT-BFP Model or PLT-RFP Model mathematical model.
PLT is essential part of the production and recovery monitoring and helps understand fluid communication at wellbore ↔ reservoir contact.
Objectives
| Producer | Injector (water or gas) |
|---|---|
Picking up the fluid inflow intervals and phase characterization | Picking up the fluid injection intervals |
| Estimating flowrate of each phase component across each inflow interval | Estimating injection rate across each injection interval |
| Check up for cross-flows in shut-in conditions between formation units with different formation pressure | |
Picking up the zones of tubing and/or casing integrity failure | |
Deliverables
Oil Producer | Water Injector |
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Fig.1 . PLT in producer with oil and water production. Both perforations are producing oil and water with upper interval producing more than lower. The lower inflow zone is mostly producing water. | Fig. 2. PLT in water injector. Injection is going to the upper and lower part of perforation with majority of water going to the upper part and the most of perforations are not taking water. |
Logging tool
See article PLT – Donwnhole Tools
Procedure
See article PLT – Logging Procedure
Interpretation
See article PLT – Interpretation
Samples
See article PLT – Samples
See Also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well & Log Analysis
[ Well & Reservoir Surveillance ]