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| Snohvit |
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| Operator: | Statoil |
| Water Depth: | 340 m / 1,122 ft |
| Region: | Europe - North Sea |
| Country: | Norway |
| Last Updated: | Oct 2, 2012 (view update history) |
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The first field development project in the Barents Sea, Snohvit is located approximately 87 miles (140 kilometers) northwest of Hammerfest, Norway, in the Hammerfest Basin. With waters ranging in depth from 820 to 1,132 feet (250 to 345 meters), the project includes the Snohvit, Akeladd and Albatross fields in an area called the "Tromso Patch". Combined recoverable resources for the project are estimated at 6.8 Tcf (193 Bcm) of natural gas, 113 million barrels of condensate and 5.6 million tons (5.1 million tonnes) of natural gas liquids (NGL).
A unitization agreement was reached in 2000 to redistribute interest in the project between the companies that held interest in the three fields. Statoil serves as the operator of Snohvit with 36.79% interest. Project partners ...
The first field development project in the Barents Sea, Snohvit is located approximately 87 miles (140 kilometers) northwest of Hammerfest, Norway, in the Hammerfest Basin. With waters ranging in depth from 820 to 1,132 feet (250 to 345 meters), the project includes the Snohvit, Akeladd and Albatross fields in an area called the "Tromso Patch". Combined recoverable resources for the project are estimated at 6.8 Tcf (193 Bcm) of natural gas, 113 million barrels of condensate and 5.6 million tons (5.1 million tonnes) of natural gas liquids (NGL).
A unitization agreement was reached in 2000 to redistribute interest in the project between the companies that held interest in the three fields. Statoil serves as the operator of Snohvit with 36.79% interest. Project partners include Petoro with 30%, Total with 18.4%, Gaz de France with 12% and RWE DEA with 2.81%.
Field Development
The first discovery in the Hammerfest Basin, the Askeladd exploration well, 7120/8-1, was drilled in 1981. The 7121/4-1 exploration well discovered Snohvit in 1984. Albatross was discovered by the 7120/9-1 exploration well.
Project partners on Snohvit agreed upon a development plan in September 2001 and submitted it to the Norwegian authorities; approval was received in March 2002. Development of the three fields was split into four phases. The first phase of development cost US $7.0 billion (NOK 48.1 billion), and the next three phases, through 2032, are expected to cost another $3.0 billion (NOK 20.8 billion).
The first phase of development included a remotely operated subsea development, an 89-mile (143-kilometer) multi-phase pipeline to shore and an LNG liquefaction plant at Melkoya. After Snohvit gas is cooled and converted to LNG, it is transported via four specially designed ships to markets in the US and Europe. This is the first time on the Norwegian Continental Shelf that a major field was developed with no surface infrastructure, as well as the first major LNG project in Europe.
In the first phase of development, Transocean's Polar Pioneer semisub drilled and completed 10 wells, nine production wells and one carbon dioxide injection well. During this phase, six production wells were drilled on the Snohvit field, as well as the CO2 injection well. The other three production wells were drilled on the Albatross field. In 2004, Schlumberger was awarded a $12 million (NOK 82 million) drilling service contract, including directional drilling, measurement while drilling (MWD) and mud logging on the first 10 wells.
Subsea Systems
At a total cost of $1.2 billion (NOK 8 billion), the innovative subsea development consists of six remotely operated subsea manifolds. Each manifold consists of four gas production templates with four well slots each; one control distribution template, which dispenses power, control signals and chemicals; and a pipeline end manifold, which serves as the connection point between flowlines from the templates and the gas export pipeline to land. Fabricated by ABB and installed by Aker Marine Contractors, the subsea equipment is remotely controlled by a 180-mile (161-kilometer) umbilical. This is the first time that all functions on the subsea development are being controlled remotely from an onshore facility.
In addition to infield pipelines and umbilicals, more than 449 miles (723 kilometers) of pipelines were laid linking the Snohvit subsea development to the onshore facility 89 miles (143 kilometers) away, including one multiphase wellstream pipeline, an umbilical for power and control signals, two chemicals pipelines, and a CO2 line. All of the pipelines on Snohvit are trenched.
Swiss company Allseas Marine Contractors won the $58 million (NOK 400 million) contract to lay the main wellstream pipeline between Snohvit and Melkoya with the Solitaire laybarge. This is the world's longest pipeline to transport unprocessed gas. Technip was awarded the $80 million (NOK 550 million) contract to install infield flowlines and umbilicals, as well as the umbilical and chemical lines between the field development and shore. Nexans developed the cable components and bundled the umbilical, and the Normand Clipper installed the record-breaking pipe.
Both DeepOcean and Acergy (formerly Stolt Offshore) were awarded two-year contracts to provide subsea services to the project. Tapping DeepOcean's Normand Tonjer and Edda Fonn vessels and Acergy's Seaway Petrel, the vessel-based work scope included pipeline inspection and mapping the upper layer of the seabed for the pipelaying project.
Carbon Storage
The field development plan also included an innovative solution for carbon dioxide separated from the produced gas. Rather than emit the CO2, the gas is transported from the onshore LNG facility back to the Snohvit subsea development via a 95-mile (153-kilometer) pipeline. There, it is re-injected into the Tubasen sandstone formation, a geological formation below the Snohvit field. Reducing greenhouse gas emissions at Melkoya by injecting and storing the CO2 into Snohvit, the project is expected to store 771,620 tons (700,000 tonnes) of CO2 a year.
Production and Future Development
The subsea development commenced production on May 28, 2007, and the Hammerfest LNG plant began production on Sept. 13, 2007. With a planned production life of 30 years, Snohvit is expected to deliver 201 Bcf (5.7 Bcm) of LNG every year.
The second, third and fourth phases of development on Snohvit include completing another 10 wells on the fields, as well as related flowlines and umbilicals. Two more wells are scheduled to be drilled on Snohvit in 2011, and drilling on Askeladd is scheduled for 2014.
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Statoil Says No Increase for Melkoya Capacity
Type: Operator Update
Oct. 2012 - Norwegian oil major Statoil announced Tuesday that it and its partners have decided to stop work on a capacity increase at the Melkøya facility serving the Snøhvit license in the Barents Sea after they concluded that current gas discoveries do not justify the expansion of the field. Statoil said that over the last 18 months, the Snøhvit license partners carried out studies for the expansion of gas exports from the field, and that increased capacity would enable the accelerated gas production of increased reserves in the Snøhvit license. Thorough studies were carried out both on an LNG train and a dew-point facility/pipeline solution, while considerable resources were devoted to finding solutions that could make a capacity expansion possible. However, the license partners have now decided the immediate future will focus on optimizing and upgrading the existing LNG facility at Melkøya. Statoil, the operator, holds 36.79 percent of the Snøhvit license, while Petoro, Total E&P Norge and RWE Dea Norge hold 18.4 percent, 12 percent and 2.81 percent respectively.
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Statoil Shuts Snohvit Gas Field
Type: Status Update
Jan. 2012 - Statoil has shut production at the Snohvit gas field in the Barents Sea and LNG production at its Melkoya plant due to a ruptured fire water line. The rupture at the plant occurred Wednesday, January 13. The operator is working to eradicate the problem. Gas from the Snohvit field is transported to Melkoya for liquefaction and exports. Snohvit is located approximately 87 miles (140 kilometers) northwest of Hammerfest, Norway.
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Statoil Ups Snohvit Stake
Type: Status Update
Nov. 2011 - Statoil has signed an agreement to acquire Hess' 3.26% ownership in the Snohvit unit and adjacent production licenses. The company will receive Hess' 11.25 percent stake in PL 097 and an 8.33 participation interest in PL 110, forming a 3.26 percent participation interest in the Snohvit Unit and the Hammerfest LNG facility. Furthermore, the agreement calls for a 3.26 participating interest in PL 110B, PL 110C and PL 448. Following the transaction, Statoil's ownership will increase to 36.79 percent.
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AGR to Inspect, Certify Statoil's Operations on NCS
Type: Status Update
Jul. 2011 - Statoil granted AGR Field Operations an extension for inspection and certification of non-complex lifting equipment. The services will include Statoil's operations on the Norwegian continental shelf in the North Sea, from Snohvit in the north to Sleipner in the south. The work scope includes 30 offshore installations and four onshore facilities. The duration of this increase is 24 months with an option for a further 24-month period.
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Foster Wheeler to Perform Pre-Feed for the Snohvit Development
Type: Contract Award
Apr. 2011 - Statoil has awarded a pre-front-end engineering (pre-FEED) contract to Global Engineering and Construction Group for the Snohvit future development project at Statoil's Melkoya-based LNG facility on Melkoya Island about 280 miles (450 kilometers) north of the Arctic Circle, Hammerfest, Norway. The company's scope of work includes concept design activities in order to support the finalization of the development concept and of the plant capacity for the expansion of LNG production at the Melkoya LNG facility, as well as energy optimization investigations. The existing Snohvit facility has a design capacity of 4.2 million tones per annum, and processes gas from the Snovhit and Albatross fields in the Barents Sea. Statoil serves as the operator, holding a 33.53% interest. Project partners include Petoro with 30%, Total with 18.4%, Gaz de France with 12%, Hess with 3.26% and RWE DEA with 2.81%.
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Statoil Shuts Production at Snohvit LNG Plant
Type: Status Update
May. 2010 - Statoil has stopped production at the Snohvit LNG plant to inspect the sub-cooling unit. The operator will also perform a minor turnaround at the plant during the third quarter of this year. Snohvit is located approximately 87 miles (140 kilometers) northwest of Hammerfest, Norway, in the Hammerfest Basin. Statoil serves as the operator, holding a 33.53% interest. Project partners include Petoro with 30%, Total with 18.4%, Gaz de France with 12%, Hess with 3.26% and RWE DEA with 2.81%.
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Statoil to Perform Turnaround on Snohvit
Type: Status Update
Apr. 2010 - Statoil has postponed plans to replace a large heat exchanger on the Snohvit LNG plant until the second quarter of 2011. Instead, the operator will perform a minor turnaround at the plant during the third quarter of this year. Snohvit is located approximately 87 miles (140 kilometers) northwest of Hammerfest, Norway, in the Hammerfest Basin. Statoil serves as the operator of Snohvit with a 33.53% interest. Project partners include Petoro with 30%, Total with 18.4%, Gaz de France with 12%, Hess with 3.26% and RWE DEA with 2.81%.
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Statoil Restarts LNG Output at Snohvit
Type: Status Update
Jan. 2010 - Statoil resumed production of LNG from its Snohvit field. Snohvit produces to an LNG facility, located in Hammerfest, Norway, but the facility was closed for maintenance and upgrades in the summer of 2009. Initially, the start-up was scheduled for November 2009, but it was delayed due to a defective motor. The motor was replaced and production of the field resumed. StatoilHydro serves as the operator of Snohvit with 33.53% interest. Project partners include Petoro with 30%, Total with 18.4%, Gaz de France with 12%, Hess with 3.26% and RWE DEA with 2.81%.
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Statoil Resumes Production at Snohvit Plant
Type: Status Update
Nov. 2009 - On June 3, 2009, StatoilHydro shut down its Snovhit LNG complex for scheduled repairs. Repairs have been completed on time, and production recently resumed. The work performed at the LNG facility included the replacement and modification of 11 heat exchangers, four seawater exchangers, and several other components. The first gas field in the icy waters of the Barents Sea, Snohvit has faced difficulties since its late start-up in 2007; however, the operator hopes to be able to prevent further outages with these improvements.
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StatoilHydro to Shut Down Snohvit for 80 Days
Type: Status Update
Jun. 2009 - StatoilHydro will shut down its Snohvit LNG complex for an estimated 80 days from mid-August for scheduled repairs. The Snohvit LNG complex is Europe's sole export facility for LNG. The first gas field in the icy waters of the Barents Sea, Snohvit has faced difficulties since its late start-up in 2007; however, the operator intends to prevent further outages with these upcoming improvements.
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StatoilHydro Restarts LNG from Snohvit in Barents Sea
Type: Status Update
May. 2009 - After a planned shut-down at the Barents Sea gas development Snohvit, StatoilHydro restarted production from the LNG plant. StatoilHydro shut in production at the Snohvit LNG plant in April 2009 for planned maintenance. Snohvit is the first development in the arctic waters of the Barents Sea. Located in the Hammerfest Basin offshore Northern Norway, Snohvit is a completely subsea gas development with a pipeline to the onshore LNG plant at Melkoya.
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StatoilHydro Plans More Than 2-Month Snohvit Halt
Type: Status Update
Feb. 2009 - Norway's StatoilHydro said on Wednesday that it would stop production at a processing plant for its offshore Snohvit gas field in the Arctic in mid-August for at least two months and possibly around 80 days. The liquefied natural gas (LNG) processing plant on Melkoya island outside of Hammerfest on Norway's far-northern coast has been beset by teething troubles since the start-up in late 2007.
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StatoilHydro Schedules Shutdown at Snohvit
Type: Status Update
Oct. 2008 - Production from the Snohvit field in the Barents Sea is due to stop on October 4 for a planned 30 days to replace two heat exchangers at the gas liquefaction plant.
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StatoilHydro Revs Production Back Up at Snohvit
Type: Status Update
Jul. 2008 - Production from the Snohvit field in the Barents Sea resumed yesterday, Thursday, July 10, after extensive service work comprising 150,000 labor hours.
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Snohvit Subsea
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Suspended - Jan 13, 2012 to -
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Producing - May 28, 2007 to Jan 12, 2012
The subsea development commenced production on May 28, 2007, and the Hammerfest LNG plant began production on Sept. 13, 2007. With a planned production life of 30 years, Snohvit is expected to deliver 201 Bcf (5.7 Bcm) of LNG every year.
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Under Construction - Mar 07, 2002 to May 27, 2007
Approved development plan for the gas resources comprises subsea templates for 19 production wells and a CO2 injection well. Production start-up is planned for 3rd quarter of 2007 with full production from 1st quarter of 2008.
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Snohvit
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Suspended - Jan 13, 2012 to Aug 02, 2012
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Producing - May 28, 2007 to -
The subsea development commenced production on May 28, 2007, and the Hammerfest LNG plant, Melkoya, began production on Sept. 13, 2007.
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Under Development - Mar 07, 2002 to May 27, 2007
Approved development plan for the gas resources comprises subsea templates for 19 production wells and a CO2 injection well. Production start-up is planned for 3rd quarter of 2007 with full production from 1st quarter of 2008.
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Discovery (Appraised) - Aug 13, 1986 to Mar 06, 2002
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Appraisal Drilling - Jan 29, 1985 to Aug 12, 1986
Several appraisal wells were drilled during this period.
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Discovery (Drilled) - Oct 28, 1984 to Jan 28, 1985
The well was permanently abandoned on 27 October 1984 as the Snøhvit oil and gas discovery.
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Exploratory Drilling - Aug 06, 1984 to Oct 27, 1984
Well 7121/4-1 was spudded with the semi-submersible rig West Vanguard on 6 August 1984 and drilled to TD at 2609 m in Late Triassic sediments (Fruholmen Formation).
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The SubseaIQ Team works everyday to provide you with the latest information on the offshore field development market.
The following table provides you with a detailed record of each addition and update made to this project by the SubseaIQ team.
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| UPDATE TYPE |
DATE |
DAYS AGO |
| Field Updated |
Oct 02, 2012 |
229 |
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| Activity Added |
Oct 02, 2012 |
229 |
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| Field Status Updated |
Aug 03, 2012 |
289 |
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| Field Updated |
Jan 13, 2012 |
492 |
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| Field Status Updated |
Jan 13, 2012 |
492 |
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| Field Status Added |
Jan 13, 2012 |
492 |
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| Facility Status Updated |
Jan 13, 2012 |
492 |
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| Facility Status Added |
Jan 13, 2012 |
492 |
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| Activity Added |
Jan 13, 2012 |
492 |
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| Field Updated |
Nov 04, 2011 |
562 |
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| Facility Updated |
Nov 04, 2011 |
562 |
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| Project Description Updated |
Nov 04, 2011 |
562 |
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| Activity Added |
Nov 04, 2011 |
562 |
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| Activity Added |
Jul 14, 2011 |
675 |
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| Field Updated |
Jul 14, 2011 |
675 |
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| Field Updated |
Apr 14, 2011 |
766 |
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| Activity Added |
Apr 14, 2011 |
766 |
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| Field Updated |
May 13, 2010 |
1102 |
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| Activity Added |
May 13, 2010 |
1102 |
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| Field Updated |
Apr 21, 2010 |
1124 |
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| Activity Added |
Apr 21, 2010 |
1124 |
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| Project Description Updated |
Apr 21, 2010 |
1124 |
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| Field Updated |
Jan 07, 2010 |
1228 |
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| Activity Added |
Jan 06, 2010 |
1229 |
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| Activity Added |
Nov 09, 2009 |
1287 |
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| Activity Added |
Jun 03, 2009 |
1446 |
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| Field Updated |
May 11, 2009 |
1469 |
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| Activity Added |
May 08, 2009 |
1472 |
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| Activity Added |
Feb 25, 2009 |
1544 |
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| Facility Updated |
Dec 19, 2008 |
1612 |
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| Project Description Added |
Nov 24, 2008 |
1637 |
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| Activity Added |
Oct 03, 2008 |
1689 |
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| Activity Added |
Jul 11, 2008 |
1773 |
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| Field Added |
Jun 12, 2008 |
1802 |
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| Facility Added |
Jun 12, 2008 |
1802 |
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| Facility Status Added |
Jun 12, 2008 |
1802 |
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| Field Status Added |
Jun 12, 2008 |
1802 |
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Project Update History Search - View all the lastest updates made by the SubseaIQ team.
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| Facility Name |
Snohvit Subsea |
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| Duty |
Gas |
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| Operator |
Statoil |
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| Current Status |
Suspended since 2012 |
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| Host Type |
Subsea Tieback |
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| Water Depth |
340 m / 1,122 ft |
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| Dev.Cost |
n/a |
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| Region |
Norway |
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| Location |
7120/6, 7120/7, 7120/8, 7120/9, 7121/4, 7121/5, 71 |
| Field Name |
Snohvit |
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| Discovery Date |
Oct 1984 |
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| Block |
7120/6, 7120/7, 7120/8, 7120/9, 7121/4, 7121/5, 71 |
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| Reserve Type |
Gas |
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| Current Status |
Producing |
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| Production Start |
May 2007 |
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| Water Depth |
340 m / 1,122 ft |
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