Exploration Update: Alaska

ConocoPhillips successfully drilled and tested discoveries on the Narwhal Trend, onshore Alaska.
This article appeared in Vol. 15, No. 5 - 2018


Exploration Update Alaska: Narwhal Trend Hydrocarbon Discoveries

ConocoPhillips indicated in July that earlier in 2018 it had successfully drilled, cored and flow-tested both the Stony Hill-1 NFW, in North Slope lease AA093131, and Putu-2A NFW, in lease ADL 390674. Stony Hill-1 reached a final TD of 3,376m and Putu-2A was drilled to 1,537m. Both wells were targeting the Nanushuk Formation, which underlies the recent Armstrong Oil & Gas discoveries at Pikka.

Both wells are sited on the Narwhal Trend and ConocoPhillips estimates that the current resource for the Trend is now 100–350 MMboe. Both discoveries, originally identified via seismic amplitude mapping, will require additional appraisal work, expected to take place in 2019. Putu-2A was capped and buried 2.4m below the tundra and directional drilling will be used if there is further development. Putu-1 was due to be drilled last winter but was postponed pending discussions with the local community.

ConocoPhillips stated in July 2018 that it has secured 0.5–1.1 Bboe of additional gross discovered resource associated with the US: Alaska Narwhal Trend Discoveries exploration programme in Alaska since 2016, with 75% of the play yet to be drilled. The cost of supply of the new resource is estimated to be less than US$ 40/barrel. ConocoPhillips Alaska is the sole interest-holder and operator in both leases.


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