Yemen

Regional;	i)	To elucidate the gross structural style of the Upper Wadi Masilah region, dividing the region into structural domains.
	ii)	Comment on the known distribution of Hydrocarbons in the surrounding licence blocks.
Detailed;	i)	Further delineate structural domains/sub-domains.
	ii)	Map surface faults, folds and bedding dips.
	ii)	Provide accurate stratigraphic maps.
	iv)	Produce a Digital Elevation Model and derived contour maps.
	v)	Combine iii) and iv) to make structure contour maps of particular stratigraphic horizons.

Geology and Prospectivity:

Extensional rift related basin initiated in Jurassic. Major fault reactivation during Oligo-Miocene (linked to rift-drift in Gulf of Aden) controls present day erosion surface. Discoveries to south (CanOxy) and southwest (Total) make blocks attractive, as they are on trend. Prospectivity declines to the east, and is non prospective to the north.

Data available for integration:

Regional;

NPA's Non-exclusive Arabia-Levant: Tectonic evolution and Hydrocarbon occurrences report.

Detailed;

15 field mapping - derived geological sections (Block 32 only)

GPS data (for high precision georeferencing).

Field checking (provided by Clyde personnel).

Methods and Products:

Regional;

Digitally processed Landsat TM data was used to cover study area with moderate resolution data (30m). Interpreted at 1:250,000 scale and composited and plotted on durable paper at 1:500,000 scale.

Detailed;

Digitally processed, mosaiced and merged Landsat TM and SPOT pan data providing 10m resolution together with full spectral range. Stereoscopic SPOT pan imagery for detailed structural geological modelling. All imagery was interpreted at 1:50,000 scale (Block 32; 4 sheets, Block 10b; 2 sheets) with colour coded, transparent interpretation overlays. Each block was compiled at 1:100,000 scale, the results of which were presented on durable paper hardcopy. Report on each block.

Benefits and Results:

i)	Allows local structure to be correlated with the regional pattern.
ii)	Prospective targets located.
iii)	Savings made following rerouting of planned seismic grid paid for entire study.

Innovation:

innovation

Cost:

Regional;

$80,000 Total

Future Developments:

N/A