ENI has started production at its Nené Marine field, offshore Congo, eight months after it was awarded a production permit and 16 months after the exploration discovery.

The field is located at a depth of 28 metres and produces from the Djeno pre-salt formation 2.5 kilometres below ground.

The field’s development will take place in several stages and will include the installation of production platforms and the drilling of more than 30 wells, with production to plateau at over 140,000 barrels of oil equivalent per day (boed).

The first phase will produce 7,500 boed, with oil to be collected and sent for treatment on the Zatchi production platform via a 17 kilometre subsea pipeline.

Eni chief executive Claudio Descalzi said achieving production in such a short period of time was a “great result” and confirmed the company’s strategy of rapid exploitation of exploration resources.

The announcement follows reports of “excellent results” at the nearby Minsala Marine 1 well.