Indago tests primary target in well off Oman

Nov. 22, 2006
Indago Oman Ltd. tested oil and gas from the Cretaceous Mishrif formation, the primary target of the West Bukha-2A (WB2A) well on Block 8 off Oman.

By OGJ editors
HOUSTON, Nov. 22 -- Indago Oman Ltd. tested oil and gas from the Cretaceous Mishrif formation, the primary target of the West Bukha-2A (WB2A) well on Block 8 off Oman.

Indago earlier this month tested 4,392 b/d of oil and 1.4 MMscfd of gas through a 50/64-in choke at 1,711 psi from the well's secondary target, Lower Cretaceous Thamama (OGJ, Nov. 20, 2006, Newsletter).

During the latest test, carried out over a perforated interval of 60 m at 4,005-4,127.5 m, WB2A flowed for 5 hr at an average rate of 6,000 b/d of 41.5° gravity oil and 16.9 MMscfd of gas through a 48/64-in. choke at flowing tubing pressure of 2,980 psi.

When the choke was widened to 60/64 in., the flow rates increased to 7,600 b/d and 20.5 MMscfd with a flowing tubing pressure of about 2,450 psi.

The flow results were achieved after acidization and an initial clean-up period. Block operator Indago and partners have yet to decide whether to carry out further testing.

The main objective in drilling the WB2A well was to prove the commerciality of the Mishrif-Mauddud reservoir in West Bukha field, which had been assigned by an independent auditor a proved and probable reserves base of 320 bscf and 33 million bbl of associated liquids. Indago plans to commission a revised reserves audit incorporating results of the latest test.