RAK tests Shuaiba gas on central Oman block

RAK Petroleum PCL, Muscat, Oman, said flow tests of the Hamrat Duru-4 appraisal well on Block 30 of central Oman proved the existence of producible gas in the Cretaceous Shuaiba formation.

By OGJ editors
HOUSTON, Mar. 23 –
RAK Petroleum PCL, Muscat, Oman, said flow tests of the Hamrat Duru-4 appraisal well on Block 30 of central Oman proved the existence of producible gas in the Cretaceous Shuaiba formation.

Shuaiba wasn’t tested in any previous well on the structure. Hamrat Duru-4 also tested the shallower Cretaceous Natih A, C, and D reservoirs. The total depth of 1,620 m includes a lateral segment to encounter fractures.

Shuaiba flowed gas at initial rates of as much as 19 MMcfd. Shuaiba also produced water at high choke settings. Pressure information will be studied to determine proximity of the gas-water contact or the presence of large fractures. Shuaiba tests will continue to determine the reservoir characteristics and the best estimate of flow volumes.

Natih A exceeded expectations at 11 MMcfd, and Natih C and D made 5 MMcfd. Natih C and D are not included in reserve estimates.

Block 30 has four existing discoveries, Nadir, Al Sahwa, Hafar, and Hamrat Duru. A development plan has been submitted to the Ministry of Oil and Gas for approval that envisages joint development of the fields with processing in a central facility before tie-in to the Oman gas grid 16 km from the block. Another option is construction of a dedicated power plant. First gas output is projected by early 2012.

RAK Petroleum holds a 100% interest in Block 30 subject to a 25% government back-in right upon declaration of commerciality.

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