Collective term for Cased-Hole Logging operations in producing wells with a purpose to assess Borehole Flow Profile (BFP) and/or Reservoir Flow Profiling (RFP):
Borehole Flow Profile (BFP) | Reservoir Flow Profiling (RFP) | ||
Borehole Production Profile | Borehole Injection Profile | Reservoir Production Profile | Reservoir Injection Profile |
PLT is essential part of the production and recovery monitoring and helps understand fluid communication at Well-Reservoir Contact.
For PLT in injection well see ILT, although it is often called PLT anywayСased-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 downhole PLT Logging Tool and interpreted with PLT-BFP Model or PLT-RFP Model.
PLT is essential part of the production and recovery monitoring and helps understand fluid communication at wellbore ↔ reservoir contact.
Objectives
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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 |
Check up for cross-flows in shut-in conditions between formation units with different formation pressure |
Picking up the zones of the first barrier (tubing and/or casing) integrity failure |
Conclusions |
Oil Producer
Water Injector
Both perforations are producing oil and water with upper interval producing more than lower. The lower inflow zone is mostly producing water. |
Fig. |
1. PLT in oil producer with oil and water |
production. See ILT for example in injecting well. |
See Also
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Petroleum Industry / Upstream / Data Acquisition / Subsurface E&P DisciplinesWell & Reservoir Surveillance / Well logging / Cased-Hole Logging
[ Well & Log Analysis ][ Borehole Flow Profile (BFP) ][ Well & Reservoir SurveillanceReservoir Flow Profiling (RFP) ][ Temperature Logging ][ Noise Logging ]
[ PLT – Donwnhole Tools ] [ PLT – Logging Procedure ] [ PLT – Interpretation ] [ PLT – Samples ]
References
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Richard Bateman, Cased Hole Log Analysis and Reservoir Performance Monitoring, 2015
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