Production Logging - Fundamentals

Day 1

• Inflow performance and productivity index for oil wells and gas wells.
• Outflow performance: matching inflow with outflow to optimize well productivity
• Tool conveyance using tractors and coiled tubing
• Depth control in cased hole wells using GR and CCL

Day 2

• Well completions applied to vertical, deviated, horizontal, and multi-laterals
• Pressure control system for rigless operation
• Reservoir Fluids: fluid properties: GOR, Bubble point Pressure; three phase diagram

Day 3

• Reservoir drive mechanisms and associated production problems
• Justifying acquiring production logs
• Flow Regimes in vertical and deviated wells and slippage velocities

Day 4

• Defining slippage velocities and using charts to obtain slippage velocities of oil and gas.
• Standard production logging tools
• Various techniques of measuring fluid of oil, water, gas using spinners, oxygen activation, phase velocity logging and gas bubble velocity

Day 5

• Measurements of three phase holdups.
• Spinner calibrations to obtain fluid velocities and hence production rates.
• Single phase and 2-phase and 3 phase production log interpretations.