Marathon Oil KDV BV, a wholly owned subsidiary of Marathon Oil Corp., discovered with its Jisik-1 exploration well multiple stacked oil and natural gas producing zones over an extensive gross interval of both Jurassic and Triassic reservoirs.
Part of the Harir block in Iraq’s Kurdistan Region, lying 40 miles northeast of Erbil, Jisik-1 was drilled to a total depth of 15,000 ft.
A drillstem testing program yielded a sustained flow rate of 6,100 b/d of 43° gravity oil, and multiple nonassociated gas zones flowed at a combined rate of 10-15 MMcfd, without stimulation, together with associated condensate, all of which were equipment constrained, Marathon says.
The Jisik-1 well will be suspended for potential future use as a producing well.
Marathon is operator of Harir block with 45% working interest, Total SA holds 35% working interest, and the Kurdistan Regional Government holds 20% carried interest (OGJ Online, July 31, 2012).
The consortium in October 2013 discovered oil of 39-45° gravity and gas with its Mirawa-1 well. Three drillstem tests were conducted at the time, with flow rates of 3,200-3,900 b/d.
Marc Blaizot, Total’s senior vice-president, exploration, commented, “The ongoing appraisal of the discoveries made on the Harir and Taza blocks will allow us to identify options for development. We are continuing exploration works on the Total-operated Safen and Baranan blocks, with additional wells planned for 2015.”
