Oil and gas explorer and producer Aminex has started a 335km 2D seismic survey in the Nyuni Area licence, offshore Tanzania.

The survey will target the transition zone of the licence between the coast and the deep-water section of the block.

"It is anticipated that the survey will be completed in the next six weeks, following which the seismic data will be processed and interpreted."

Aminex said a combination of ocean bottom cable and a marine seismic source would be used in the shallow-water, while a land-based seismic source will be used on the emergent reefs and islands.

Stuard Detmer, Aminex chief executive, said the transition zone seismic survey will provide a significantly improved definition of existing structural leads and imaging of the stratigraphic potential.

"The combined results of the two Nyuni Area seismic surveys will be used to target future drilling in the transition zone and deep-water sections of the block," said Detmer.

It is anticipated that the survey will be completed in the next six weeks, following which the seismic data will be processed and interpreted.

The company is also planning to gather more than 500km of 2D marine seismic in the deep-water portion of the Nyuni Area licence during the second half of 2012.

The two surveys, combining transition zone and deep-water seismic programmes, will fulfil the seismic work required under the initial work period of the Nyuni Area production sharing agreement which extends through October 2013.

Aminex holds a 70% operated interest in the Nyuni Area, with the Rak Gas Commission holding a 25% stake and Bounty Oil & Gas holding the remaining five percent interest.