Defintion
PRIME is the specific workflow and report template on Primary Well & Reservoir Performance Indicators.
Application
PRIME
- understand the current status and trends of reservoir depletion against expectations
- understand the current status and trends of water flood efficiency against expectations
- quantitatively compare performance of different wells or different groups of wells
- identify and prioritize redevelopment opportunities
Technology
PRIME includes the following metrics:
| Metric name | Diagnostic plots | Objectives | |
|---|---|---|---|
| 1 | Decline Curve Analysis | qo1, qliq1 ,qinj1, VRR, Pe vs t | Production forecast |
| 2 | Recovery Diagnostic | qo1, qliq1, qinj1, Yw, GOR, VRR, Pe vs RF | Estimate recovery efficiency |
| 3 | Pressure Diagnostic | VRR, Pe , Pe_MatBal vs RF | Estimate pressure balance against material balance |
| 4 | Watercut Diagnostic | Yw vs Yw_MatBal, Yw vs qt | Check for water balance and thief water production |
| 5 | GOR Diagnostic | GOR vs GORMatBal, GOR vs qt | Check for gas balance and thief gas production |
| 6 | Production Injection Ratio Diagnostics | PIR & PIRMatBal vs Yw | Evaluate WI efficiency |
| 7 | Well Performance Analysis | IPR Pwf vs q, VLP Pwf vs q | Check for the optimal production/injection target |
| 8 | Productivity Index Diagnostic | JPI vs dP | Check for PI dynamics |
PRIME analysis is built around production data against material balance and require current FDP volumetrics, PVT and SCAL models.
PRIME includes well-by-well diagnostics and gross field diagnostics, but may be extended to sector-by-sector diagnostics.
Sample Case
- Productivity Analysis
2. Decline Curve Analysis
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