Marathon Makes Small Gas Discovery in Greater Alvheim Area
Marathon Petroleum Norge AS has concluded the drilling of wildcat well 25/4-10 A. The well, which encountered gas, was drilled on the South Kneler prospect about six kilometers south of the production vessel on the Alvheim field in the North Sea.
The first branch of the dual branched exploration well was an oil discovery, Viper, which will most likely be developed as a tie-back to the Alvheim FPSO.
The objective of the well was to prove petroleum in Paleocene reservoir rocks (the Heimdal formation). The well encountered gas in two sandstone layers which were six meters thick in total in the Lista formation. The reservoir rock is significantly thinner than expected and the size of the discovery is not commercially interesting at this time.
No formation testing was conducted in the well, but extensive data acquisition has been carried out. The licensees in the production license will evaluate the discovery together with the 25/4-3 Gekko oil and gas discovery proven in 1974 and located just east of this well.
Well 25/4-10 A is the seventh exploration well in production license 203, awarded in the 15th licensing round in 1996. 25/4-10 A was drilled to a vertical depth of 2167 meters below the sea surface, and was terminated in Paleocene rocks (the Heimdal formation). The water depth is 126 meters. The well has been permanently plugged and abandoned.
The well was drilled by the Transocean Winner semisubmersible drilling rig, which will now proceed to production license 338 in the North Sea to drill appraisal well 16/1-13, where Lundin Norway AS is the operator. Lundin has 15 percent working interest in PL203 with partners Marathon Petroleum Norge AS (operator) and ConocoPhillips Scandinavia AS.
- ConocoPhillips Strikes First Oil at New Alaska Site (Oct 10)
- ConocoPhillips to Divest Timor Sea Acreage (Oct 01)
- KBR, ConocoPhillips to Develop Off-the-Shelf LNG Tech (Sep 18)
Company: Marathon Oil Company more info
- Harvey's Wake Tempers Bullish Outlook for US Oil Output Growth (Sep 01)
- RoyalGate to Drill New Well in Equatorial Guinea's Block Z (Sep 25)
- ShaMaran Subsidiary to Contest TAQA Default Notice (Sep 21)
Company: Transocean Ltd. more info
- Offshore Brazil Contract Extension Goes to Transocean (Sep 28)
- Transocean Wins Multi-well NCS Contract for New Semisub (Sep 21)
- Driller Transocean Eyes Improved Lease Rates, Activity In 2019 (Sep 05)
Company: Lundin Petroleum AB more info
- Equinor, Partners to Develop Next Phase of Johan Sverdrup (Aug 27)
- Lundin Petroleum Raises Size Of Norway's Rolvsnes Oil Discovery (Aug 27)
- Output At Lundin's Grieg Field Back To Normal After Forties Outage (Dec 27)