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- Assess current production performance
- current distribution of recovery against expectations
- current status and trends of recovery against expectations
- current status and trends of reservoir depletion against expectations
- current status and trends of water flood efficiency against expectations
- compare performance of different wells or different groups of wells
- Identify and prioritize surveillance opportunities
- Identify and prioritize redevelopment opportunities
Obviously, PRIME does not pretend to predict pressure and reserves distribution as 3D dynamic model does.
It only provides hints for misperforming wells and sectors which need a further focus.
Technology
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Primary Production Analysis is built around production data against material balance and require current FDP volumetrics, PVT and SCAL models.
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- fast-track
- based on the most robust input data
- does not involve full-field 3D dynamic modelling and associtated assumptions
Obviously, PRIME does not pretend to predict pressure and reserves distribution as 3D dynamic model does.
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| Metric name | Diagnostic plots | Objectives |
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1 | Production History Map | Background = Structure Bubbles = qo, qg , qw, qinj Number = CurVRR, Pe | Production Distribution Overview | 2 | Recovery Map | Background = STOIIP Bubbles = Qo, Qg , Qw, Qinj Number = CumVRR, Pe | Recovery Distribution Overview | 3 | Cross-section | Background = STOIIP & Structure Bubbles = VRR Number = Pe , Pem | Vertical Flow Proifle Overview | 3 | Production History Graphs | Left Axis = qo, qg , qw, qinj, Rigth Axis = Yw, GOR, Pe , Np, Ninj Hor Axis = Elapsed Time | Production History Overview | 4 | Decline Curve Analysis | Left Axis = qo1, qliq1, qinj1, Rigth Axis = Yw, GOR, VRR, Pe
Hor Axis = Elapsed Time | Production Forecast | 5 | Recovery Diagnostic | Left Axis = qo1, qliq1, qinj1 Rigth Axis =Yw, GOR, VRR, Pe, Pem
Hor Axis = RF | Estimate recovery efficiency and pressure decline | 6 | Watercut Diagnostic | Left Axis = Yw, Ywm
Hor Axis = qliq | Check for water balance and thief water production | 7 | GOR Diagnostic | Left Axis = GOR, GORgm Hor Axis =qo | Check for gas balance and thief gas production | 8 | Injection Efficiency Diagnostics | Left Axis = PIR , PIRm Hor Axis = Yw | Evaluate WI efficiency | 9 | Well Performance Analysis | Left Axis = Pwf_IPR , Pwf_VLP Hor Axis = qo | Check for the optimal production/injection target | 10 | Productivity Index Diagnostic | Left Axis = JPI, JPIm Hor Axis = dP = Pwf - Pe | Check for PI dynamics |
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