A RECENTLY completed 3D seismic survey offshore Seychelles has confirmed “potentially large structures” and some new “modest” leads, WHL Energy has reported.

The junior explorer has been investigating the country’s Junon trend and the new data has helped to shore up the status of structures previously mapped with 2D seismic.

Initial interpretations indicate the potential presence of large structures at Junon East, Junon Central and Junon South – though the latter “appears to have higher risk”.

WHL said Junon Central was mapped to be a “relatively simple tiled fault block closure covering approximately 20 square kilometres”, with Junon East reported to be of a similar scale.

“Additional possible new leads have also been mapped in the Central Graben area, although these are of a more modest size,” WHL said.

It said the quality of the interim processed data was challenging but the 3D modelling was providing “much more definitive mapping in the Junon area”.

WHL managing director David Rowbottan said it was “exciting and encouraging” that the initial interpretation had confirmed the structures.

“It is also interesting that we are now identifying new leads as we continue to refine the processing of the large amount of data acquired in the Junon 3D seismic survey,” he said.

“We look forward to receiving the final pre-stack time migration data set and the results of the ongoing interpretation, which we believe will provide even greater clarity and will further de-risk future exploration activities.”

The company received an interim dataset from 3D seismic contractor Dolphin Geophysical in mid-November, with the final PreSTM processed volume expected to be delivered by February 2015.

WHL holds 25 per cent of a 12,856 square kilometres exploration area offshore Seychelles, having farmed-in experienced East Africa explorer Ophir Energy in March.

The companies have mapped out a prospect and lead inventory containing at least 18 features

“A world class exploration portfolio and new exploration concepts are being matured in the acreage,” WHL said.