The Atrush-4 (AT-4) appraisal/development well in the Kurdistan region of Iraq has been suspended as a potential future producer, according to ShaMaran Petroleum.
Three separate drillstem tests were conducted in the Jurassic reservoir with maximum rates totaling 9,059 bbl/d of oil of 27° to 28°API from two of the tests, a news release said. None of the tests produced formation water.
Downhole samples for PVT analysis and surface samples for oil assay studies were taken. Well testing operations were completed on April 7, 2014. AT-4 has been suspended as a Phase 1 producer. The well was spudded on Oct. 20, 2013, using the DQE31 drilling rig and reached a total depth of 2,916 m (9,567 ft) on Jan. 23, 2014.
The drilling rig is now moving to drill the Chiya Khere-5 development well, which is expected to spud in May 2014, the release said.
The Atrush Block is operated by TAQA Atrush B.V., a subsidiary of Abu Dhabi National Energy Co., which holds a 39.9% working interest in the block. ShaMaran Petroleum Corp. holds a 20.1% working interest through its wholly owned subsidiary, ShaMaran Ventures BV. Marathon Oil KDV B.V., a wholly owned subsidiary of Marathon Oil Corp. (MRO), holds a 15% working interest in the block. Subsequent to its back-in, the government of the Kurdistan region of Iraq holds a 25% working interest.
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