Dalia Dalia
Facility Name Dalia FPSO Duty Oil
Operator Total E&P Current Status Producing since 2006
Host Type FPSO Water Depth 1,500 m / 4,950 ft
Dev.Cost $3,400,000,000 Region Angola
Location 17
Field Name Dalia Discovery Date Sep 1997
Block 17 Reserve Type Oil
Producing Production Start Dec 2006
Water Depth 1,500 m / 4,950 ft
Discovered in 1997, the Dalia oil field is located 84 miles (135 kilometers) offshore Angola in Block 17 in a water depth of 4,921 feet (1,500 meters). The field holds an estimated 1 billion barrels of recoverable reserves.

Total serves as the operator with 40% interest. Esso Exploration Angola holds 20%, BP holds 16.67%, Statoil holds 23.33%.

Subsea System

Pride International’s drillships the Pride Africa and Pride Angola drilled the Dalia wells. A total of 71 wells make up the subsea production system: 38 production wells, 30 water injection wells, and three gas injection wells. In addition, the system includes 67 xmas trees to control the well stream, nine manifolds, two work-over systems, connection systems and control equipment. Production flowlines are linked to eight flexible risers specially manufactured for the project, which transport the fluid to Dalia’s FPSO vessel. The development of the Dalia project cost an estimated $3.4 billion.

Most of the production wells are single and near horizontal, and a drill through horizontal Xmas tree sits atop each well. Nine umbilicals remotely control the xmas trees and manifolds. The manifolds have large and small bore piping and valves to manage production, hydraulic control and chemical injections. The project uses four 12-inch-diameter pipe-in-pipe production loops to transport oil to the FPSO.

Eight flexible risers, using Integrated Production Bundle (IPB) technology, carry fluid to the surface facilities. The flexible risers make it possible to monitor the field’s behavior in real-time, to inject gas to facilitate the production of oil, and to ensure the proper flow of the oil as it is brought up.

Dalia FPSO

One of the largest FPSO vessels to date, the Dalia FPSO measures 984 feet (300 meters) by 197 feet (60 meters) and weighs 85,000 tons (77,111 tonnes). It processes 240,000 bopd and has a storage capacity of 2 million barrels. The living quarters of the FPSO includes a main control room, from which all of its systems are monitored, and living space for up to 190 people.

The vessel is moored by a 12-point chain linked to 106-ton (96-tonne) suction anchors that are attached to the vessel by a 394 foot (120 meter) sheathed cable with a length of chain at either end that is 2,133 feet (650 meters) at the seabed and 656 feet (200 meters) at the surface.

In January 2004, Total commissioned Samsung Heavy Industry to fabricate the FPSO Dalia’s hull in South Korea. Construction began that month, and the hull was completed the following August.


Brought online in December 2006, oil is produced from the giant field’s three main reservoirs, along with the adjacent Camellia reservoir. Production rates were 200,000 bopd within four months of production start-up, reaching peak production of 240,000 barrels very soon afterward. It is estimated the field will produce up to 2.5 million barrels per day in 2011.

Saipem Awarded FPSO Upgrade Contract
Date: Oct. 2012
Type: Contract Award
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.
Aker to Supply Subsea Trees for Dalia Field
Date: May. 2012
Type: Subsea Equipment
Total awarded Aker Solutions a contract for the delivery of seven subsea tree systems to the Dalia field offshore Angola. The scope of work includes seven production trees, seven wellhead systems and seven well jumper systems, and may include some contract options. Management and engineering of the subsea tree systems will be performed at Aker Solutions' manufacturing center in Tranby, Norway. Procurement, manufacturing and assembly will take place in Port Klang, Malaysia, and Aberdeen, UK. Equipment deliveries will be made in 2013 and 2014.
Total Taps CGGVeritas for Major 4D Inversion Project Off Angola
Date: Jun. 2009
Type: Contract Award
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.
Dalia Field Officially Inaugurated in Angola
Date: Jan. 2008
Type: Status Update
Angola's Petroleum Minister, Desiderio Costa, officially inaugurated the deep offshore Dalia field at a ceremony also attended by Manuel Vicente, Chairman of Sonangol (Sociedade Nacional de Combustiveis de Angola), and Christophe de Margerie, Chief Executive Officer of Total.
Total Turns on the Taps at Dalia
Date: Dec. 2006
Type: Production Start
Sonangol and Total have started production from Angola's deepwater Dalia field in Block 17. Discovered in September 1997 and located some 135 kilometers off the coast in water depths ranging from 1,200 to 1,500 meters. Dalia is estimated to contain close to 1 billion barrels of recoverable oil. It is the largest deepwater development to be brought onstream this year and among the largest projects of its kind in the world.
FPSO DALIA Enroute to Angola
Date: Aug. 2006
Type: Status Update
Fairmount Sherpa and Fairmount Summit are continuing with the delivery of the FPSO DALIA. The heavy lift vessels sailed from Cape Town on August 20th.
Consafe Engineering Wins Dalia FPSO Work
Date: Feb. 2004
Type: Contract Award
Consafe Engineering has been awarded a turnkey contract worth more than £11 million by TSS Dalia for the Dalia FPSO (Floating, Production, Storage and Offloading vessel), which will be located offshore Angola. The turnkey contract is for the design, engineering, construction and commissioning of seven technical buildings, consisting of electrical and instrumentation rooms, a workshop and a laboratory.
Aker Kvaerner Wins Dalia Subsea Contract
Date: May. 2003
Type: Contract Award
TotalFinaElf E&P Angola has awarded Aker Kvaerner an order to proceed for delivery of the subsea oil production system for the Dalia project in Block 17 offshore Angola. Worth in excess of NOK 2 billion (USD 300 million), the scope covers engineering, procurement and fabrication of all required subsea production equipment.
TotalFinaElf Launches Development of Dalia Field
Date: May. 2003
Type: Development Activity
State-owned Sonangol of Angola has authorized TotalFinaElf, as operator of Block 17, to award the key contracts for developing the Dalia oil field. The development project includes 34 production wells, 30 water injection wells and three gas injection wells. The floating production storage and offloading (FPSO) vessel for Dalia will constitute a second pole of production on Block 17. Capable of processing 240,000 barrels of oil per day, the Dalia FPSO will also have a storage capacity of 2 million barrels of oil. In total, the development of the Dalia project represents an estimated investment of $3.4 billion.
Status History
Dalia FPSO

Producing - Dec 01, 2006 to -

Producing - Dec 2006 to -
Under Development - Apr 2003 to Nov 2006
Exploratory Drilling - Sep 1997 to Sep 1997
Project Map Africa - West
Line Separator
Project Image
Dalia FPSO
Dalia FPSO
Dalia FPSO
Block 17