Eni drills Agogo-3 appraisal, raises estimated oil in place

Eni SPA has increased the estimated oil in place of Agogo field by about 40% to 1 billion bbl with further upside to be tested in the northern sector of the field after drilling Agogo-3, the second appraisal well of the discovery in Block 15/06, offshore Angola (OGJ Online, July 26, 2019).

Data from the well, drilled 1.5 km northwest of the Agogo-2 (appraisal) and 4.5 km northwest of Agogo-1 (discovery) wells, confirmed communication with Agogo-2 reservoirs and further extension of the Agogo discovery to the north. The well’s estimated production capacity is in excess of 15,000 b/d. The field lies about 180 km from the coast in water depth of 1,700 m.

Agogo-3 was drilled by the Libongos drillship as a highly deviated well to 4,321 m total measured depth to reach sequences below the thick blanket of salt, leveraging Eni’s seismic imaging technologies and confirming an oil-charged and connected reservoir in the subsalt sector of the Agogo megastructure. It encountered up to 120 m of net pay of light oil (31°API) in sandstones of Miocene and Oligocene age with excellent petrophysical properties.

Production from Block 15/06 is tied back to the N’Goma floating production, storage, and offloading vessel about 15 km from the field (OGJ Online, Jan 17, 2020). Eni and partners contemplating a third production hub and targeting a final investment decision in 2021.

Eni Angola operates the block with a 36.8421% interest. Sonangol P&P has 36.8421% and SSI Fifteen Ltd. has 26.3158%.

In addition to Block 15/06, Eni currently operates Block Cabinda Norte, onshore Angola, and will increase its operated areas adding Blocks 1/14 (offshore Lower Congo basin), Cabinda Centro (onshore) and Block 28 in the offshore Namibe basin. Eni currently accounts for about 140,000 boed equity production in Angola.