Al Shaheen Oil Field
| Al Shaheen Oil Field | |
|---|---|
 |
|
| Country | Qatar |
| Region | Persian Gulf |
| Block | 5 |
| Offshore/onshore | offshore |
| Coordinates | 26°36′18″N 51°55′55″E / 26.605°N 51.932°ECoordinates: 26°36′18″N 51°55′55″E / 26.605°N 51.932°E |
| Operator | Maersk Oil Qatar AS |
| Partners |
Maersk Oil Qatar Petroleum |
| Field history | |
| Discovery | 1992 |
| Start of production | 1994 |
| Production | |
| Current production of oil | 240,000 barrels per day (~1.2×107 t/a) |
| Year of current production of oil | 2006 |
| Producing formations | Nahr Umr, Shuaiba and Kharaib formations |
The Al Shaheen Oil Field is a production oil and gas field off the north east coast of Qatar in the Persian Gulf, 80 kilometres (50 mi) north of Doha. The oil field lies over the North Gas Field, one of the largest gas fields in the world. The field is operated by Maersk Oil Qatar AS of Denmark under a production sharing agreement with Qatar Petroleum, on behalf of the state of Qatar.
Though well North West Deep-2, drilled by Shell in 1974, blew out briefly from the Shaheen reservoir, the oil field was only formally discovered in 1992 by Maersk Oil. The drilling of appraisal wells was completed in 1994 using horizontal drilling techniques. Regular oil production started the same year. In 1995–1996, production facilities were extended with subsea export pipelines, an additional single point mooring loading buoy, new process facilities and a STAR type wellhead platform.
In April 2004, the extension area north of block 5 was included to the production sharing agreement. Inauguration of new offshore facilities took place on 23 February 2005.
In May 2008, GSF Rig 127 operated by Transocean drilled the world record extended reach well BD-04A in the field. The well was drilled incident free to a record measured depth of 40,320 ft (12,290 m) including a record horizontal reach of 35,770 ft (10,900 m) in 36 days.
From 2004 until August 2009 the massive supertanker, Knock Nevis, the largest ship built to date, was moored there as a floating storage and offloading unit (FSO). In January 2010, she was replaced by both the FSO Asia, and in August 2010, the FSO Africa replaced the Astro Canopus. Both vessels are owned as a joint venture by Overseas Shipholding Group and Euronav.
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