Frontera Energy Corp. reevaluated reserves and plans for development in multiple Maastrichtian horizons in the northern portion of Corentyne block in Guyana-Suriname basin.
Kawa-1, drilled in January 2022, encountered hydrocarbon-bearing reservoirs within the Maastrichtian, Campanian, Santonian, and Coniacian intervals, but insufficient data acquisition prevented full evaluation of reservoir quality and fluid types (OGJ Online. Feb. 14, 2022). Wei -1, drilled in June 2023, encountered hydrocarbon-bearing reservoirs within the Maastrichtian, Campanian, and Santonian intervals (OGJ Online, Nov. 10, 2023). The well provided enough data to evaluate itself, Kawa-1, and prospects in between.
Based on four separate evaluations, Wei-1 and Kawa-1 data suggest that about 514-628 MMboe PMean unrisked gross prospective resources are present in the multiple horizons. There is a potential for additional prospective resources from horizons of Campanian and Santonian age.
The results of the wells have derisked Maastrichtian anomalies on the block. The Maastricht contains several stacked, mappable, 60-ft blocky sands over a 600-ft interval with high net-to-gross sand ratio. Logs showed good reservoir quality with 16-26% porosity and 68 ft combined log pay.
Frontera retained SIA, a Subsea 7 – Schlumberger (OneSubsea) joint venture, to complete a conceptual field development plan for the northern portion of Corentyne block. The plan will optimize subsea architecture, develop well planning, and design production and export infrastructure.
Frontera is in the process of concluding the exploration phase of the project and is entering the appraisal phase. First oil is expected in 2030, 7 years after discovery with a final investment decision (FID) in 2026.
Frontera is majority shareholder in Corentyne block (72%) with joint venture partner CGX Energy (28%). Frontera has 76.05% ownership in CGX Energy.