Oil Search Ltd. plans a sidetrack well following an oil and gas discovery in Pikka East block on the North Slope of Alaska.
The Mitqua-1 well, drilled to a 2,472 m TD, encountered both oil and gas in the primary Nanushuk reservoir as well as in the deeper Alpine C target.
Oil Search said that preliminary evaluation of wireline logs, along with pressure and fluid sample data, indicates the Nanushuk Cretaceous-age Brookian sand has 60 m of net pay comprising 5 m of net gas and 55 m of net oil pay.
Data collected from the secondary Alpine C sandstone reservoir indicates the presence of 16 m of net hydrocarbon pay comprising 6 m of net gas and 10 m of net oil pay.
Oil Search will plug the wellbore and drill a sidetrack. The Nanushuk section of the sidetrack will be cored and flow-tested to assess deliverability and provide a more accurate estimate of net pay thickness and commercial potential.
The Alpine C reservoir is to be evaluated by future appraisal wells.
Mitquq-1 is about 8 km east northeast of the planned Nanushuk processing facility that will be built during Phase 2 of the Pikka Unit development.
Oil Search is operator of Pikka East with 51% interest. Repsol holds 49%.
