1. Depth Imaging unfolds complex geology and impacts Reserves
The Q4 Story
Depth Imaging unfolds complex geology and impacts Reserves
Mark Kemme

2. Summary 425 km2 seismic data from four surveys successfully mergedQ8 Q4 Q1 Q5
425 km2 seismic data from four surveys successfully merged
Very complex geology with major reverse faults 1 2 3 4 5
3600
3800
4000
4200
4400
4600
4800
5400
5200
5000
5800
6000
6200
5600
Divided in 5 major blocks up to 5 zones per block
Rigorous velocity building approach applied: top - down & W - E
Velocity updating Final migration velocities picked from scaled velocity maps

3. Conclusions Dramatic improvement in resolution Revised interpretation
Improved fault positioning
Result:
Successful second well
Reserves increased with 50%
First gas: Dec ( within 2.5 yr !!)