Nabrajah, Block 43:
The test in the main Qishn reservoir in Nabrajah-2 produced about 379 barrels of oil and 7 020 barrels of water per day. The test results does not correspond to the evaluation of open hole logs, and the water production is therefore assumed to come from water bearing sands in the lower Qishn intervals, which is likely to be caused by leakage behind casing due to poor cement seal. As a consequence the test results do not represent the full oil production potential of the well.
The test did, however confirm movable hydrocarbons at the similar Qishn level as Nabrajah-1 which flowed about 1 973 barrels of oil and 375 barrels of water from the this section. This confirms the extension of the Nabrajah structure to the west, and proven + probable reserves for the Nabrajah structure are now estimated to ca. 20 million barrels of which DNO's pretax share is ca. 11 million barrels. This is about twice as much as previously reported.
DNO is currently preparing for an early production development scheme with possible first oil in May 2005, some 4-5 months earlier than previous plans. The field development plan is expected to be submitted to Yemen authorities for approval during the 4th Quarter of this year.
Further exploration and appraisal in Block 43 will be considered after the Nabrajah Field is on stream. DNO sees a potential for additional 10 - 20 million barrels at Qishn level combined from two identified structures in the Nabrajah area.
The above estimates of reserves and reserve potential do not include the hydrocarbon discovery in the basement section. As previously reported the basement test in Nabrajah-2 flowed a total equivalent hydrocarbon liquid production in excess of 3 000 barrels per day, combined of 313 barrels of condensate per day and 15.2 million standard cubic feet per day of gas (approximately 2 730 barrels of oil equivalents per day). Future wells in Block 43 will also be located to further appraise the basement hydrocarbon discovery.
Tasour, Block 32:
Tasour-13 is a step-out appraisal well on the western flank of the Tasour Field in Block 32 and was put on stream with initial production of 2 240 barrels of oil per day and 5 740 barrels of water per day. This has increased the total oil production from the Tasour Field to ca. 19 500 BOPD, of which DNOs share is ca. 7 900 BOPD (pretax). As a consequence of the positive results from Tasour-13 another production well (Tasour-14) will be drilled in the same area. This well could be put on stream early November 2004.