RE: Mock CPR9 Jul 2025 16:44
5.1 Lundin Data
Tembakau 1 Discovery (2012)
• Drilled to 1,565 m TVD in 67 m water depth.
• Encountered approximately 60 m net gas pay across five Miocene sandstone intervals.
• Logging, rock/fluid sampling, and mini-DSTs confirmed gas presence.
• Well plugged and abandoned post-evaluation.
• Located near established offshore gas infrastructure.
Tembakau 2 Appraisal (2014)
• Drilled to 1,450 m TVD by jack-up rig West Prospero in 68 m water.
• Penetrated 22 m of gross gas pay in four sandstone intervals between 900–1,300 m SS.
• Fully cored and logged; detailed petrophysical evaluation conducted.
• Successfully flow-tested:
o I20 Sand: 15.8 MMscf/d on 64/64″ choke over 8 hours.
o I10 Sand: 15.9 MMscf/d on 72/64″ choke over 8 hours.
• Gas was dry, with ~0.5% CO₂.
• Fluid samples were collected and used for PVT analysis.
• Results were used to update the 3D static model and resource estimates.
Mengkuang 1 Exploration (2015)
• Drilled to 1,259 m subsea using West Prospero.
• Encountered 9 m of gas pay in Miocene I-35 channel sands.
• Not tested; well was plugged and abandoned.
• Similar depositional and seismic character to Tembakau, indicating probable reservoir continuity.
• Requires further appraisal to confirm productivity.
6. Upside Potential & Remaining Plays
- Additional Miocene channel units deeper or lateral to both wells may uplift volumes.
- Similar channel reservoirs likely exist between the two wells and across untested structural leads.
- Surrounding open acreage offers further exploration prospects using reprocessed seismic.
7. Recommendations
1. Appraisal Well UTBK‑2:
Drill Tembakau down-dip to test reservoir continuity and aquifer support.
2. Appraisal Well UMKG‑1A:
Re-enter Mengkuang or drill near the discovery to validate reservoir deliverability.
3. Extended Well Testing (EWT):
Both wells should undergo EWT to determine permeability, rate potential, and fluid properties.
4. Seismic Work & Modelling:
Reprocess existing 3D seismic, acquire infill surveys, and conduct fault seal and reservoir quality analyses.
5. Compositional & PVT Fluid Sampling:
Obtain gas/condensate samples to understand condensate yields and pressure-temperature response for both fields.
6. Integration Study & FDAP Preparation:
Assess tie-back route options, unmanned platform design, cost scenarios, and debut business case aligned with PSC timelines.
8. CPR Conclusions
- Tembakau: Proven reservoir with 0.84 Tcf and 18 Mbbl in 2C recoverables; appraisal risk moderate.
- Mengkuang: High-quality Miocene pay; prospective ~0.18 Tcf gas and 5 Mbbl condensate; needs testing.
- Cluster Potential: Combined yields ~1.0 Tcf recoverable gas with upside >1.2 Tcf from infill and adjacent targets.
- Key Risks: include reservoir continuity, fault-seal integrity, charge mechanism, and development logistics.
- Next Steps: App
Sign In
Follow the stocks
