Spectrum outlines goals for frontier Mozambique 2D seismic survey

Spectrum has received Tender Area 2 covering the southern Rovuma and northeastern Zambezi basins offshore Mozambique
(Courtesy Spectrum)

Offshore staff

WOKING, UK – Spectrum has received Tender Area 2 covering the southern Rovuma and northeastern Zambezi basins offshore Mozambique, and has proposed a long-offset Broadband 2D multi-client seismic survey.

This will be a variable grid with lines spaced from 10-20 km (6.2-12.4 mi), totalling more than 16,000 km (9,941 mi).

The data will image the subsurface potential in open areas of the southern Rovuma basin and the western flanks of the Kerimbas Graben, west of the Davie fracture zone.

Potential targets have already been identified along the Mozambique margin in both structural and stratigraphic settings following recent studies over the area - these include Cretaceous and Tertiary turbidites and buried canyon plays.

In addition, the survey will be designed to image syn-rift structures and Late Cretaceous pro-delta stacked turbidite sequences in the northeast Zambezi Depression.

The Zambezi Delta exhibits complex structuration following extensive recent compressional tectonics, Spectrum says, with various potential source, reservoir and seal intervals identified in this area.

Play types include onlaps and drapes over basement highs, stratigraphic, and structural traps of deepwater slope channel and basin floor fan complexes, lowstand plays (wedge and pro-delta fan), syn-rift graben hanging wall and footwall plays, and strike slip structural plays.

New 2D data could accelerate hydrocarbon exploration activity in what is thought to be an oil-dominated region offshore Mozambique, the company adds.


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