Mature Water Flood Analysis

Mature Water Flood Analysis (MWFA)

Mature Water Flood Analysis is a workflow for identifying the performance gaps in the mature waterfloods performance.

As a result Mature Water Flood Analysis generates Blocks/Patterns Enhancement List.

Workflow

1. Upload the required data (see below)
2. Check production/injection by completions, define reservoirs order for analysis
3. Gridding - Divide the field into patterns/blocks/buckets ("Blocks" below) (Try to put the same grid for all the reservoirs)
4. Calculate STOIIP for each reservoir using blocks
5. Match STOIIP to official numbers by changing the edge blocks areas
6. Make Plots (by field, by reservoir, by block):History, RF vs HCPVinj, RF vs well spacing, WOR vs Np, VRR vs t
7. Make Maps (by reservoir) showing Blocks: HCPV, HCPVinj, RF, VRR
8. Calculate Blocks Enhancement List
9. Draw conclusions

1. Data Upload

• Create Fields
• Upload Wells
• Upload Deviation Surveys
• Upload Perforations
• Upload Well Log Interpretions
• Upload Reservoirs
• Upload PVT
• Upload Monthly Measures

2. Completions

When field consists of multiple reservoirs, production allocation between the reservoirs can become an issue.

References

Wolcott, D. ; Applied Waterflood Field Development, Energy Tribune Publishing Inc., 2009.