Advanced Reservoir Monitoring

Day-1

• Agenda and Nomenclature
• Reservoir Monitoring- Introduction
• Reservoir Fluids
• Reservoir drive mechanisms
• The skin factors
• Life of a well
• Life of a reservoir
• Why run reservoir monitoring logs?
• Overview of open hole log evaluations. This is important as Open Hole log evaluations are the input to cased hole reservoir monitoring.

1-hour workshop on openhole log evaluation

Day 2

• Nuclear physics of reservoir monitoring and pulsed neutron logging (PNL)
• PNL Tools: Pulsed Neutron Generator, Scintillation detectors.
• PNL for Capture cross section measurements
• Standalone PNL interpretations in wells with no log data in Clastic and carbonate reservoirs
• Techniques for estimating formation water salinity:

• Wells with Sw=100%
• Depleted reservoirs with no 100% water zones.
• In wells with variable water salinity

1- hour workshop on Capture mode interpretation and water salinity evaluations

 Day-3

• PNL Spectroscopy
• PNL for Inelastic (Carbon/Oxygen: C/O) logging applications
• C/O processes to compensate for borehole effects.
• Combining capture mode (sigma) and C/O mode for salinity evaluation
• The new generation of PNL (PNX) for C/O evaluation. Applications
  • New tool hardware configuration
  • Improved Carbon/Oxygen data with 21 short bursts in the the inelastic domain
  • Improved gas detection and evaluations using high neutron capture cross-section

1 hour workshop on Inelastic (C/O) interpretations

Day-4

• Gravel Pack Logging
• Log-Inject-Log to estimate Residual Oil Saturation

• Field mapping of water flood to identify unswept zones.
• Pressure measurements and sampling behind casing

Applied workshop on residual oil saturation

 Day-5

• Formation resistivity behind conductive (steel) casing
• Formation resistivity evaluation behind non-conductive (plastic, fibreoptic) casing
• Cross-Well Electromagnetic Monitoring
• Spectral analysis to obtain Total Organic Carbon (TOC).

Workshop on formation resistivity behind casings