LOCATION

Danish North Sea Sector

CLIENT

Maersk Oil

BUILDING PERIOD

2003-2005

PARTNERS

N/A

The latest platform installed in the Dan field in the Danish North Sea is Dan FG. This platform increases the 300 bar water injection in the old Dan and Halfdan oil fields, thereby maintaining the pressure from the oil production.

The Dan field is provided with process equipment for separation of oil, gas and water for the existing Dan FF wells. The separated water is treated before it is dumped into the sea and gas is compressed for well lift gas users.

Dan FG comprises of a topside facility of 6,800 ton, supported on a 4-legged jacket, provided with 3 main decks. When the oil, gas and water comes back up from one of the 20 production wells, it enters the new process facility which separates oil, gas and water and cleans the salt water.

The Dan field, the oldest and most productive field in the Danish sector, has been in production since 1972, and until now the installations have delivered 30% of the produced oil.

The topside structure on Dan-FG supports a flare boom with the uppermost point at 132 m above water level. Turbines are installed on the platform to provide the total power supply of 55 MW to the processing system.

The topside structure is produced in Singapore and transported on a heavy carrier via the Suez Canal and the Mediterranean to the North Sea. After waiting a couple of days for suitable weather conditions in the North Sea, the 6,800- ton heavy platform was hoisted in position on the jacket structure by the world’s largest floating crane, which has a maximum capacity of 2 x 7,000 ton. This very efficient method of installing offshore platforms with only a few lifts has been developed during the last 10-15 years.

The topside structure for Dan-FG is designed and fabricated in 2.5 years.

Water injection is also used in other oil fields in the North Sea such as Gorm and Skjold with consequently considerable amounts of water in the produced liquid coming up from the wells, supported by lift gas.

LOCATION

Danish North Sea Sector

CLIENT

Maersk Oil

BUILDING PERIOD

2003-2005

PARTNERS

N/A


Gas Module Tyra West

The appraisal of the Halfdan NE gas reservoir and the European open gas marked intention have formed the initial basis for establishing a 26″ pipeline running 99 km from the Danish sector towards the Dutch sector vie the NOGAT F3 platform and further on to shore at Holland for distribution. The pipeline is owned by DUC and DONG Naturgas and is operated by Mærsk Olie og Gas A/S.

Halfdan BD

Halfdan BD platform is the latest addition to the Halfdan B Complex in the Danish North Sea. The platform upgrades the complex to manned operation and provides facilities to handle extraction of oil reserves with high water contents.

Dan FG

The latest platform installed in the Dan field in the Danish North Sea is Dan FG. This platform increases the 300 bar water injection in the old Dan and Halfdan oil fields, thereby maintaining the pressure from the oil production.

Dai Hung Mid Depth Buoys

Drilling for oil and gas in deep water is usually done by means of semi- submersible rigs. This is also the case in the Dai Hung oilfield, located in Block 05-01a, approximately 250 km of the coast of Vietnam at a water depth of approximately 110 m.

Nini East

The Nini East A Platform was installed in summer 2009 as a satellite platform to Siri. Nini East A is solely a production platform producing for Siri. Dong Energy A/S operates the Siri platform and the adjoining platforms.

Tyra platform

Tyra Southeast B

During the summer of 2014 the Tyra Southeast B platform was installed on a 4-legged jacket as a satellite platform connected via a bridge to the Tyra Southeast A platform. The installation of the Tyra Southeast platform and bridge will maintain and increase the production from the Tyra Southeast reservoir, and create opportunities for future recovery of oil and gas from the Nana reservoir.

Gas Module Tyra West

The appraisal of the Halfdan NE gas reservoir and the European open gas marked intention have formed the initial basis for establishing a 26″ pipeline running 99 km from the Danish sector towards the Dutch sector vie the NOGAT F3 platform and further on to shore at Holland for distribution. The pipeline is owned by DUC and DONG Naturgas and is operated by Mærsk Olie og Gas A/S.

Halfdan BD

Halfdan BD platform is the latest addition to the Halfdan B Complex in the Danish North Sea. The platform upgrades the complex to manned operation and provides facilities to handle extraction of oil reserves with high water contents.

Dan FG

The latest platform installed in the Dan field in the Danish North Sea is Dan FG. This platform increases the 300 bar water injection in the old Dan and Halfdan oil fields, thereby maintaining the pressure from the oil production.

Dai Hung Mid Depth Buoys

Drilling for oil and gas in deep water is usually done by means of semi- submersible rigs. This is also the case in the Dai Hung oilfield, located in Block 05-01a, approximately 250 km of the coast of Vietnam at a water depth of approximately 110 m.

Nini East

The Nini East A Platform was installed in summer 2009 as a satellite platform to Siri. Nini East A is solely a production platform producing for Siri. Dong Energy A/S operates the Siri platform and the adjoining platforms.

Tyra platform

Tyra Southeast B

During the summer of 2014 the Tyra Southeast B platform was installed on a 4-legged jacket as a satellite platform connected via a bridge to the Tyra Southeast A platform. The installation of the Tyra Southeast platform and bridge will maintain and increase the production from the Tyra Southeast reservoir, and create opportunities for future recovery of oil and gas from the Nana reservoir.

Maersk Drilling XLE Rigs

The Maersk Drilling XLE rigs is a series of four ultra harsh environment jack-up drilling rigs. The rigs were delivered from ship yards in The Far East and transported to Norway for a start-up stay for installation of Company equipment.

Maersk Drilling JU-rig

The YME field in Norway was redeveloped in 2008-2010 by Talisman. A storage tank was placed on the seabed 95m below sea level. An OD 5m caisson, protecting the future 9 conductors, connected to the tank, extended 25m above sea level.