The Al Ahkaf structure is a large tilted fault block located on the southern boundary of Block 35, straddling Block 47. The estimated mean recoverable reserves potential of Al Akhaf within Block 35 is 106 million barrels.
The well’s primary targets are the S2 and S3 sands in the Upper Qishn Clastics Formation. The lower Qishn Clastics, Saar Dolomites, Lower Saar/Upper Naifa Carbonates and fresh fractured basement are secondary targets.
The planned depth of the well is 2,820 metres and the well is expected to take about 20 to 35 days to drill.
Block 35 is also near Block 43 where Oil Search and partners are appraising the Nabrajah oil discovery.
The Nabrajah-4 appraisal well began drilling on 4 December. Located about 1.3km north-east of the Nabrajah-1 surface location, it will appraise the oil-bearing Qishn S2 and S1 sandstones.
Interests in al Ahkaf-1 are Oil Search (Yemen) operator 31%, Sipetrol International SA 30%, Voyager Energy 15%, Saba Yemen Oil Company Ltd 19%, and the Yemen Company 5% (carried).
Interests in Nabrajah-4 are DNO ASA 56.67% (operator), Oil Search (Yemen) Limited 28.33% and the Yemen Company 15% (carried).
