LONDON – The semisubmersible rig Marianas has spudded the Nunya-1X exploration well on the Keta block offshore Ghana.
Eni Ghana operates the well, which targets a four-way dip closed structure. According to partner Afren, the primary reservoir target comprises Upper Cretaceous deep-marine fan sandstones analogous to those that have generated discoveries elsewhere along the West Africa transform margin.
Last year Eni took a 35% operating interest in the Keta block. The other partners are Mitsui and GNPC.
Eni has success in finding gas offshore Ghana in the past.