SAN DONATO MILANESE, Italy – Eni has upgraded its reserves estimate for its Ndungu oil discovery offshore Angola, following appraisal drilling.
The field is 130 km (81 mi) offshore and around 10 km (6.2 mi) from the Ngoma FPSO in the West Hub of block 15/06.
Ndungu 2, drilled 5 km (3.1 mi) from the Ndungu 1 discovery well, encountered 40 m (131 ft) of net oil pay (35°API) in the Lower Oligocene reservoirs with good petrophysical properties confirming hydraulic communication with Ndungu 1.
Data acquired from the latest well suggest in-place resources are 800 to 1,000 MMboe, compared with the initial estimates of 250-300 MMboe following Ndungu 1.
If confirmed, this would make Ndungu, along with Agogo, the largest accumulations on Block 15/06.
Eni said it has deployed leading edge technology to identify additional potential in the block’s complex structural and stratigraphic traps.
Early production from Ndungu started last month through a single well, with a second producer well due to start up during the fall via existing facilities serving the West Hub.
In parallel, appraisal while producing will continue, to optimize production and to minimize risks.
A phased development of Ndungu will help increase the plateau production period of the 100,000 b/d Ngoma FPSO.
Other partners in Block 15/06 are Sonangol Pesquisa e Produção and SSI Fifteen.