Phase: Producing
Country: Azerbaijan
Owner/Operator(s): Chevron Corp. Statoil ASA Exxon Mobile Corp. Itochu Corp. BP PLC Inpex Corp. Devon Energy Corp.
Categories: Offshore Field Development (Drilling-Subsea)
Updated: 13 Jul 2012

Azeri-Chirag-Gunashli (ACG) Oil Fields Images

Project Description

A Production Sharing Agreement (PSA) for the Azeri, Chirag and Gunashli (ACG) field in Azerbaijan’s sector of the Caspian was signed in September 1994 for 30 years between Azerbaijan International Operating Company (AIOC) and the State Oil Company of the Azerbaijan Republic (SOCAR).

The ACG field is located 100 kms east of Baku in water depth ranging from 125~180 meters. It was discovered in the early 1980’s and the shallow part called shallow water Gunashli was developed by SOCAR through several platforms and production started in 1985.

BP currently estimates total recoverable reserves in ACG over the PSA period (1994~2024) at 5.4 billion barrels of oil, with around 1.4 billion barrels of oil produced at the end of 2009. STOOIP is estimated at 17.4 billion barrels of oil, making ACG one of the largest oil fields in the world.

Early oil production began in November 1997 from the upgraded Chirag-1 existing platform.

During the period February 2005~April 2008, four fixed new production platforms were installed offshore and started production, namely Central Azeri, West Azeri, East Azeri and Deepwater Gunashli. All four platforms have similar design with 48-slot well bay and an average topside weight of 21.000 net tons.

In addition, adjacent to both Deepwater Gunashli and Central Azeri production platforms, a compression and water injection platform was installed.

A sixth production platform, Chirag Oil Platform (COP) was sanctioned in March 2010. COP design has a similar design to other production platforms and first oil is planned late 2013.

Wells (Producers, Water Injectors, Gas Injectors) at ACG are being drilled from the five Production Platforms and three subsea templates in the Deepwater Gunashli (Water Injection only). Up to mid 2010, over 100 new wells have been drilled and on average around 20 wells are been drilled every year across ACG field, up to 3800m vertical depth.

The ACG Crude Oil production in 2010 is around 830.000 bopd is sent through 3x30” and 1x28” oil export pipeline to Sangachal Terminal located 55kms south of Baku and covering 540 hectars.

ACG is currently producing up to 1200 mmmscf/d of associated gas (nearly twice as much as Shah Deniz Phase 1). Around 75% is being re-injected at Central Azeri platform for pressure support. A gas pipeline 1x28” links ACG field to Sangachal to handle surplus associated produced gas.

In addition to gas injection, production mechanism also includes water injection of 800.000 bwpd.

ACG Crude Oil main export routes are:

-85% via the Baku-Tbilisi-Ceyan (BTC) 1700kms pipeline connecting the Caspian Sea with the Mediterranean Sea.

-10% via the Western Route Export Pipeline (WREP) connecting the Caspian Sea with the Black Sea

-5% via Railway connecting Caspian Sea to the Black Sea.

Project Location


Azeri-Chirag-Gunashli (ACG) Oil Fields News

BP And Socar Agree Way Forward

SOURCE: BP | 24 October 2012

As a follow up to last week's London meetings, a group of BP senior executives representing BP’s upstream production, development, and strategy and integration divisions held a 3-day working visit to Baku to continue the discussions about production from the ACG fields, as well as to review BP’s future plans for the region.

BP Says Consortia Invested $33 Billion In Azeri Energy Projects

SOURCE: Dow Jones Newswires | 02 November 2011

Investments in Azerbaijan's Azeri-Chirag-Guneshli, or ACG, and Shah Deniz fields in the Caspian Sea total $33 billion to date, the operator of both projects BP PLC said Wednesday.

BP Halts Work At Chirag Caspian Sea Platform Until July 27

SOURCE: Dow Jones Newswires | 11 July 2011

U.K. oil major BP PLC has shut down production from its Chirag platform in the Caspian Sea until July 27 due to planned maintenance, the company said Monday.

Azerbaijan: Jan-Apr Oil Output 15.9 Million Tons, Down 4.6% On-Year

SOURCE: Dow Jones Newswires | 16 May 2011

Azerbaijan produced 15.9 million metric tons of crude oil in January to April, down 4.6% from the same period last year, Azerbaijan's state statistics agency said Monday.

AMEC Awarded US$600 Million Oil & Gas Contract By BP In Azerbaijan

SOURCE: AMEC | 04 May 2011

AMEC, the international engineering and project management company, has been awarded a major brownfield contract by BP Azerbaijan, covering both their onshore and offshore assets in the region for five years with two possible four-year extensions.

AMEC Gets $600 Million Contract From BP For Projects In Azerbaijan

SOURCE: Dow Jones Newswires | 03 May 2011

AMEC PLC, the international engineering and project management company, has been awarded a $600 million contract by BP PLC to work on the oil major's projects in Azerbaijan, BP said Tuesday.

BP May Sign Contract To Develop Gas At Azeri Field This Year

SOURCE: Dow Jones Newswires | 18 April 2011

U.K. oil major BP PLC may sign a production sharing agreement to explore and develop the deep-lying gas formation at the huge Azeri-Chirag-Guneshli field in the Caspian Sea by the end of 2011, Azerbaijan's state energy company Socar said Monday.

Azerbaijan: Jan-Mar Oil Output 12 Million Tons, Down 2.5% On Year

SOURCE: Dow Jones Newswires | 14 April 2011

Azerbaijan produced 12 million metric tons of crude oil in January to March, down 2.5% from the same period last year, Azerbaijan's state statistics agency said Thursday.

Azerbaijan: Jan-Feb Oil Output 7.9 Million Tons, Flat On-Year

SOURCE: Dow Jones Newswires | 15 March 2011

Azerbaijan produced 7.9 million metric tons of crude oil in January and February, unchanged from the same period last year, Azerbaijan's state statistics agency said Tuesday.

BP's Azeri-Chirag-Gunashli Produced 823,100 Bbl/Day In 2010

SOURCE: Dow Jones Newswires | 02 March 2011

A consortium led by BP PLC that is operating the massive Azeri-Chirag-Gunashli oil project in the Azerbaijani sector of the Caspian Sea produced on average 823,100 barrels of oil a day in 2010, below a previous target of 854,000 barrels, BP said Wednesday.

BP Says Azeri-Chirag-Gunashli To Produce 850,000 Bbl/Day In 2011

SOURCE: Dow Jones Newswires | 30 November 2010

A consortium led by BP PLC that is operating the massive Azeri-Chirag-Gunashli oil field in the Azerbaijani sector of the Caspian Sea plans to produce 850,000 barrels of oil a day in 2011, slightly below this year's level, BP said Tuesday.

Azerbaijan Jan-Sep Oil Output Up 2% On Year At 38.6 Million Tons

SOURCE: Dow Jones Newswires | 22 October 2010

Azerbaijan produced 38.551 million metric tons of crude oil from January to September, up 1.9% from the same period last year, Azerbaijan's state statistics agency said late Thursday.

Inpex: To Buy Additional 1% Stake In ACG Oil Project From Devon

SOURCE: Dow Jones Newswires | 17 August 2010

Inpex Corp. said Tuesday it has agreed to buy an additional 0.96% stake in the Azeri-Chirag-Gunashli oil field development project in Azerbaijan's Caspian Sea from Devon Energy Caspian Corp., which is exiting the project.

AMEC Awarded Five-Year Master Services Agreement And $340million Project For BP, Azerbaijan

SOURCE: AMEC | 13 July 2010

AMEC, the international engineering and project management company, as part of the AMEC Tekfen Azfen (ATA) consortium, announces the award of a five-year Master Services Agreement by BP Azerbaijan.

BP-led Consortium Awards Contracts For $6 Billion Caspian Project

SOURCE: Dow Jones Newswires | 08 July 2010

A consortium led by BP PLC that is operating the massive Azeri-Chirag-Gunashli oil field in the Azeri sector of the Caspian Sea has awarded six contracts totaling $814 million for development of the Chirag project, the consortium said Friday.


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