Sakhalin-I

Sakhalin-I project
Chayvo, Odoptu, Arkutun-Dagi fields
CountryRussia
RegionSakhalin
Offshore/onshoreoffshore
OperatorRosneft, Sakhalinmorneftegaz-Shelf
Partners
Production
Current production of oil250,000 barrels per day (~1.2×10^7 t/a)
Estimated oil in place2,300 million barrels (~3.1×10^8 t)
Estimated gas in place17,100×10^9 cu ft (480×10^9 m3)

The Sakhalin-I (Russian: Сахалин-1) project, a sister project to Sakhalin-II, is a consortium for production of oil and gas on Sakhalin Island and immediately offshore. It operates three fields in the Okhotsk Sea: Chayvo, Odoptu and Arkutun-Dagi.[1]

In 1996, the consortium completed a production-sharing agreement between the Sakhalin-I consortium, the Russian Federation and the Sakhalin government. The consortium was managed and operated by Exxon Neftegas Limited (ENL), a unit of ExxonMobil,[1] until Exxon's withdrawal in March 2022 following the 2022 Russian Invasion of Ukraine.[2] The Russian government froze Exxon's investment in August 2022 and ordered its transfer to a newly created Russian company the following October.[3]

Since 2003, when the first Sakhalin-1 well was drilled, six of the world's 10 record-setting extended reach drilling wells have been drilled at the fields of the project, using the Yastreb rig. It has set multiple industry records for length, rate of penetration and directional drilling. On 27 August 2012, Exxon Neftegas beat its previous record by completing Z-44 Chayvo well. This ERD well reached a measured total length of 12,376 meters (40,604 ft), making it the longest well in the world.[4][5] In November 2017, the record well reached 15 kilometers (49,000 ft) long.[6]

  1. ^ a b "Sakhalin-1: A New Frontier" Archived 2012-02-08 at the Wayback Machine - PennWell Custom Publishing (c/o of ExxonMobil)
  2. ^ "ExxonMobil to discontinue operations at Sakhalin-1, make no new investments in Russia". ExxonMobil. Retrieved 2022-03-02.
  3. ^ "Putin Orders Sakhalin-1 Project Transferred to Russian Entity". Bloomberg US Edition. October 8, 2022. Retrieved 2022-10-08.
  4. ^ "Z-44 Chayvo Well: The Deepest Oil Extraction (Infographic)". 24 March 2017.
  5. ^ Cite error: The named reference record2 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference record17 was invoked but never defined (see the help page).