Offshore Field Development Projects
Girassol Girassol
Operator:Total E&P
Water Depth:1,350 m / 4,455 ft
Region:Africa - West
Country:Angola
Last Updated:Oct 26, 2012    (view update history)
Project Description
The first field discovered on Angola's offshore Block 17, Girassol is located 93 miles (150 kilometers) offshore in waters measuring approximately 4,600 feet (1,402 meters) deep. The GIR-1 exploration well discovered the Girassol oil field at a true vertical depth of 8,202 feet (2,500 meters) in April 1996. The well tested at a daily production rate of 12,500 bopd at 32 degrees API. Two appraisal wells were drilled on the field by the semisub Jim Cunningham, proving the field commercially significant. Estimated recoverable reserves are 725 million barrels.

Total's Angolan subsidiary, Total E&P Angola, is the operator of Angolan Block 17 with 40% interest. Partners in the license include Statoil with a 23.33% interest, Esso Exploration Angola with a 20% interest and BP ...
The first field discovered on Angola's offshore Block 17, Girassol is located 93 miles (150 kilometers) offshore in waters measuring approximately 4,600 feet (1,402 meters) deep. The GIR-1 exploration well discovered the Girassol oil field at a true vertical depth of 8,202 feet (2,500 meters) in April 1996. The well tested at a daily production rate of 12,500 bopd at 32 degrees API. Two appraisal wells were drilled on the field by the semisub Jim Cunningham, proving the field commercially significant. Estimated recoverable reserves are 725 million barrels.

Total's Angolan subsidiary, Total E&P Angola, is the operator of Angolan Block 17 with 40% interest. Partners in the license include Statoil with a 23.33% interest, Esso Exploration Angola with a 20% interest and BP Exploration Angola with a 16.67% interest. There have been 15 fields discovered on the block, and there are currently four production projects ongoing on Block 17, namely Girassol, Dalia, Pazflor and CLOV.

Field Development

The first deepwater development offshore West Africa and the largest project at the time, Girassol field development costs reached US $2.8 billion. Development plans included an FPSO, as well as 32 subsea wells, 28 miles (45 kilometers) of flowlines, 18 miles (29 kilometers) of injection lines and 43 miles (70 kilometers) of umbilicals. The subsea wells are connected via flowlines to three riser towers, which deliver recovered hydrocarbons to the FPSO. Then, oil is exported via two rigid midwater pipelines to an export buoy.

Subsea Wells

Subsea development on Girassol was split into two phases, awarded to FMC Kongsberg. The first phase included eight production wells, two water injectors and one gas injector; the second phase encompassed another 10 production wells, 10 water injection wells and one gas injection well, for a total of 32 subsea wells. Each well is topped by a vertical subsea xmas tree fitted with a tree cap that is ROV retrievable.

The 18 production wells are connected to 11 seabed manifolds, by a well jumper and an umbilical jumper. The manifolds are "daisy chained" up to four in a row, and there are six pig loop modules associated with the manifolds. Based on the FPSO topside, the subsea control system monitors 41 subsea control modules.

Flowlines and Risers

Alto Mar Girassol, a joint venture between Acergy (formerly Stolt Offshore) and Bouygues Offshore, won the contract to provide the flowlines, risers and umbilicals. Beyond its depth, the water posed another challenge: flow assurance. The water at Girassol is cold (40 degrees Farenheit), but the field development overcome potential flow assurance problems with specially insulated flowlines and a unique riser system.

Hydrocarbons travel from the subsea manifold to the base of the risers via eleven umbilical bundles. Measuring 30 inches in diameter and spanning up to 9,514 feet (2,900 meters), the umbilicals consist of two 8-inch-diameter production lines enclosed in insulation foam and surrounded by a steel tube. In the first phase of development, eight flowlines were installed, measuring a total of 11 miles (18 kilometers). The second phase of development added another three bundles, totaling 2 miles (4 kilometers) in length. Petromar was subcontracted to construct the bundles.

Measuring 4,265 feet (1,300 meters) tall, the risers are thermally insulated and buoyant bundles fabricated by Sonamet. Sheathed in an insulating material that also provides buoyancy, each riser is comprised of six pipes bundled around a central support pipe. With a diameter of 8 inches each, there are 12 tubes used to transport oil from the field to the FPSO and six tubes used to transport water and gas from the FPSO for injection into the field. Each riser has a diameter of 5 feet (1.5 meters) and spans 4,200 feet (1,280 meters) from the seafloor to 164 feet (50 meters) below the water surface. Buoyancy tanks measuring 131 feet (40 meters) high and 26 feet (8 meters) wide are attached to the top of the risers, connecting flexible pipelines to the FPSO.

Girassol FPSO and Export Buoy

The Girassol FPSO was the world's largest at the time of its construction and installation. Measuring 984 feet (300 meters) long, 197 feet (60 meters) wide and 102 feet (31 meters) high, the FPSO houses up to 140 people. The vessel boasts a storage capacity of 2 million barrels of oil and a processing capacity of 200,000 bopd, 283 MMcf/d (8 MMcm/d) and 180,000 barrels per day of produced water.
The FPSO contract was awarded to a joint venture between Bouygues Offshore and Stolt Offshore named Mar Profundo Girassol, and the hull and topsides construction was subcontracted to Hyundai Heavy Industries. Streamlining the construction phase, the 25,000-ton (22,680-tonne) topsides completely store all of the processing equipment, while the hull is a traditional vessel. Built in South Korea, the massive vessel took more than three months to reach its West African position, where it is spread moored by 16 suction anchors.

Oil is exported from the vessel via two rigid midwater pipelines to a catenary leg mooring (CALM) buoy. The rigid flowlines, measuring 16-inches in diameter and 8,202 feet (2,500 meters) long, are suspended in water between the FPSO and the unloading buoy. AMG awarded the flowline contract to Saibos Construcoes Maritimas, a subsidiary joint venture between Bouygues Offshroe and Saipem. Located 1 nautical mile from the FPSO, the loading buoy is moored to the seafloor by nine anchor lines.

The development cost of just the FPSO and unloading buoy amounted to $920 million.

Production

In less than six years after discovery, Girassol reached first production on Dec. 4, 2001. Within a month, the field was producing 100,000 bopd, and plateau production was reached another six weeks later at 200,000 bopd. Development drilling on the field continued into 2003.

Satellite Fields

Jasmim

Discovered in April 2000, the Jasmim field was the ninth field discovered on the petroleum-rich Block 17, about 124 miles (200 kilometers) northwest of Luanda. Located 4 miles (6 kilometers) from Girassol in 4,239 feet (1,292 meters) of water, the Jasmim-1 discovery well tested at a flow rate of 10,800 bopd at 29 degrees API.
Due to its close proximity to Girassol and the latter's ebbing production, Jasmim was developed as the first satellite field to the existing Girassol infrastructure. Field development on Jasmim included eight subsea wells tied-back to the Girassol FPSO 5 kilometers away. The subsea satellite development is located in 4,593 feet (1,400 meters) of water about 93 miles (150 kilometers) from the Angolan shore.

Commencing production in December 2003, Jasmim was the second field to come on stream on Angola's Block 17. The satellite field increased oil production on the Girassol FPSO to 230,000 bopd and effectively prolonged the facility's plateau.

Rosa

Rosa was discovered in 1998 in Block 17, 84 miles (135 kilometers) offshore Angola in water depths up to 4,429 feet (1,350 meters). When Rosa field came online in June 2007, it became the second satellite field tied-back to the Girassol FPSO, stationed nine miles (15 kilometers) away. With proven and probable reserves amounting to 370 million barrels, Rosa is the first deepwater field of its size to be tied back to such a remote installation and in such water depths. The field will maintain the FPSO's production plateau at 250,000 bpd through 2010.

Field development comprises 25 wells, including 11 water injection wells and 14 production wells. The wells then tie into four manifolds. The subsea installation also includes 40 miles (64 kilometers) of insulated production pipe-in-pipe flow lines and 25 miles (40 kilometers) of water injection lines that link the field to the Girassol FPSO. Docked nearby the FPSO, an innovative rise tower takes the fluid from the sea floor to the surface.

A subsea production system contract was awarded to FMC for engineering, procurement and construction. FMC's work scope included installable and retrievable choke inserts, the four production manifolds and the connection systems for flowlines and umbilicals. Another contract was awarded to Saipem for the engineering, procurement, construction, installation and pre-commissioning of the subsea umbilicals, risers and flowlines in 4,593 feet (1,400 meters) of water. Total also awarded a contract to Prosafe Rigs for the use of MSV Regalia in the modification of the Girassol FPSO to tie-in the Rosa subsea development.

With the addition of a second remote field to the Girassol FPSO, 5,600 tons (5,080 tonnes) of structure and equipment were installed on the FPSO. When Rosa came on stream, all the water produced from the Girassol FPSO and its satellite fields was re-injected back into the reservoirs, keeping produced water from being discharged to the sea. Adding the daily production from Rosa, the Girassol FPSO's production is 270,000 bopd.
Activities
Status Updates
Saipem Awarded FPSO Upgrade Contract
Type: Contract Award

Oct. 2012 - Total awarded Saipem an EPIC contract concerning the Girassol and Dalia FPSOs operating in Block 17 offshore Angola. The contract comprises the engineering, procurement, fabrication, installation and commissioning of the topside modifications for the multiphase pump systems on board the vessels. The offshore work, scheduled for 4Q 2014, will be mainly be performed by the dynamically positioned Saipem 3000 heavy lift support vessel.

FMC to Supply Subsea Equipment for Girassol Project
Type: Subsea Equipment

Jan. 2011 - FMC Technologies has signed an agreement with Total Exploration and Production Angola for the manufacture and supply of subsea production equipment to support the Girassol Resource Initiative project. The award has a value of about US $80 million. FMC's scope of supply includes the manufacture of three subsea production trees, six wellheads and assorted flowbase and jumper equipment. Deliveries are scheduled to commence in the fourth quarter of 2011. The equipment supplied under Option 3 will support the Girassol field, located offshore Angola in the Gulf of Guinea. Total E&P Angola is the operator of the project with a 40% interest. Partners in the license include Statoil with a 23.33% interest, Esso Exploration Angola with a 20% interest and BP Exploration Angola with a 16.67% interest.

Diverless Deepwater Repairs a Success for Girassol Pipeline Off Angola
Type: Pipeline Construction

Jan. 2010 - Subsea 7 completed the Girassol pipeline repair project for Total. The diverless project consisted of Subsea 7 performing the design, manufacture, testing and operations of a new deepwater pipeline repair system on a damaged 12-inch-diameter water injection pipeline. The repair was confirmed by a pipeline leak test from the Girassol FPSO, which was completed in December 2009. Girassol is located 93 miles (150 kilometers) offshore in waters measuring approximately 4,593 feet (1,400 meters) deep. Total E&P Angola, is the operator with a 40% interest. Partners in the license include Statoil with a 23.33% interest, Esso Exploration Angola with a 20% interest and BP Exploration Angola with a 16.67% interest.

Total Taps CGGVeritas for Major 4D Inversion Project Off Angola
Type: Contract Award

Jun. 2009 - CGGVeritas received a major seismic reservoir characterization project by Total E&P Angola and their partners. The award is for the inversion of 4D seismic data covering the Dalia, Rosa, Girassol and Jasmine fields offshore Angola. The project will use the Hampson-Russell proprietary global 4D elastic inversion product, StratiSI 4D.

Girassol FPSO
Producing - Dec 04, 2001 to -

In less than six years after discovery, Girassol reached first production on Dec. 4, 2001. Within a month, the field was producing 100,000 bopd, and plateau production was reached another six weeks later at 200,000 bopd. Development drilling on the field continued into 2003.

Jasmim
Producing - Dec 2003 to -

Commencing production in December 2003, Jasmim was the second field to come on stream on Angola's Block 17. The satellite field increased oil production on the Girassol FPSO to 230,000 bopd and effectively prolonged the facility's plateau.

Under Development - Apr 2000 to Nov 2003

Due to its close proximity to Girassol and the latter's ebbing production, Jasmim was developed as the first satellite field to the existing Girassol infrastructure. Field development on Jasmim included eight subsea wells tied-back to the Girassol FPSO 5 kilometers away.

Discovery (Drilled) - Apr 2000 to Apr 2000

Discovered in April 2000, the Jasmim field was the ninth field discovered on the petroleum-rich Block 17, about 124 miles (200 kilometers) northwest of Luanda. Located 4 miles (6 kilometers) from Girassol in 4,239 feet (1,292 meters) of water, the Jasmim-1 discovery well tested at a flow rate of 10,800 bopd at 29 degrees API.

Girassol
Producing - Dec 04, 2001 to -

In less than six years after discovery, Girassol reached first production on Dec. 4, 2001. Within a month, the field was producing 100,000 bopd, and plateau production was reached another six weeks later at 200,000 bopd.

Under Development - Apr 1996 to Dec 03, 2001

Development plans included an FPSO, as well as 39 subsea wells, 28 miles (45 kilometers) of flowlines, 18 miles (29 kilometers) of injection lines and 43 miles (70 kilometers) of umbilicals. The subsea wells are connected via flowlines to three riser towers, which deliver recovered hydrocarbons to the FPSO. Then, oil is exported via two rigid midwater pipelines to an export buoy.

Discovery (Drilled) - Apr 1996 to Apr 1996

The first field discovered on Angola's offshore Block 17, Girassol is located 93 miles (150 kilometers) offshore in waters measuring approximately 4,593 feet (1,400 meters) deep. The GIR-1 exploration well discovered the Girassol oil field at a true vertical depth of 8,202 feet (2,500 meters) in April 1996.

Update History
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.
UPDATE TYPE DATE DAYS AGO
Facility Updated Oct 26, 2012 1703
Activity Added Oct 26, 2012 1703
Project Description Updated Jan 21, 2011 2347
Field Updated Jan 19, 2011 2349
Activity Added Jan 19, 2011 2349
Project Description Updated Dec 10, 2010 2389
Field Updated Mar 19, 2010 2655
Project Description Updated Mar 19, 2010 2655
Field Updated Jan 20, 2010 2713
Project Description Updated Jan 20, 2010 2713
Activity Added Jan 19, 2010 2714
Activity Added Jun 03, 2009 2944
Facility Updated Jan 05, 2009 3093
Facility Status Added Dec 29, 2008 3100
Field Status Added Dec 29, 2008 3100
Project Description Added Dec 29, 2008 3100
Field Added Dec 29, 2008 3100
Facility Added Dec 29, 2008 3100

    Project Update History Search - View all the lastest updates made by the SubseaIQ team.
 
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Facility Name Girassol FPSO
Duty Oil
Operator Total E&P
Current Status Producing since 2001
Host Type FPSO
Water Depth 1,350 m / 4,455 ft
Dev.Cost $920,000,000
 
Region Angola
 
Location Block 17
 
Field Name Girassol
Discovery Date Apr 1996
Block 17
Reserve Type Oil
Current Status Producing
Production Start Dec 2001
Water Depth 1,400 m / 4,620 ft
Field Name Jasmim
Discovery Date Apr 2000
Block 17
Reserve Type Oil
Current Status Producing
Production Start Dec 2003
Water Depth 1,350 m / 4,455 ft