Сased-hole logging technique assessing the borehole flow profile (ILT-BFP) and reservoir flow profile (ILT-RFP) in injecting well.
The survey is performed with a multi-sensor donwhole ILT Logging Tool and interpreted with ILT-BFP Model or ILT-RFP Model.
ILT is essential part of the waterflood and gasflood performance monitoring and helps understand fluid communication at wellbore ↔ reservoir contact.
Sometimes ILT is called PLT in injecting well.
Objectives
Picking up the fluid injection intervals |
| 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 the first barrier (tubing and/or casing) integrity failure |
| Conclusions |
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. | |
Fig. 2. ILT in water injector. See PLT for example in producing well. |
See Also
Petroleum Industry / Upstream / Well & Reservoir Surveillance / Well Logging
[ ILT – Donwnhole Tools ] [ ILT – Logging Procedure ] [ ILT – Interpretation ] [ ILT – Samples ]
[ Well & Log Analysis ] [ Production Logging (PLT) ]