Offshore Field Development Projects
Aseng Aseng
Operator:Noble
Water Depth:945 m / 3,119 ft
Region:Africa - West
Country:Equatorial Guinea
Last Updated:Nov 7, 2012    (view update history)
Project Description
The sanctioned Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40% interest; Atlas Petroleum International Limited holds a 29% interest; Glencore Exploration EG Ltd holds a 25% interest; and PA Resources holds the remaining 6% interest.

In 2007, Aseng, formerly Benita, was discovered as a gas-condensate field and then confirmed by two appraisal wells. The first appraisal well identified the oil resources and the second well determined the down-dip reservoir limits.

Engineering and design work was conducted at Aseng while developmental contracts were secured. The Atwood Hunter semisub was leased to begin development work on the field, and arrived on location in ...
The sanctioned Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40% interest; Atlas Petroleum International Limited holds a 29% interest; Glencore Exploration EG Ltd holds a 25% interest; and PA Resources holds the remaining 6% interest.

In 2007, Aseng, formerly Benita, was discovered as a gas-condensate field and then confirmed by two appraisal wells. The first appraisal well identified the oil resources and the second well determined the down-dip reservoir limits.

Engineering and design work was conducted at Aseng while developmental contracts were secured. The Atwood Hunter semisub was leased to begin development work on the field, and arrived on location in 2010.

Field Development

At a total cost of US $1.3 billion, Aseng was developed by five subsea wells tied to an FPSO. The oil is stored on the vessel unit, while the natural gas and water is re-injected into the reservoir to maintain pressure and maximize oil recoveries.

The leased Aseng FPSO is moored in 3,100 feet (945 meters) of water and has the design capabilities to handle 120,000 barrels of liquid per day, including 80,000 bopd. The vessel is also capable of re-injecting 170 MMcf/d (4 MMcm/d) into the reservoir for maximum recovery efforts.

Dresser-Rand received a contract from SBM Offshore to supply advanced turbomachinery for the Aseng FPSO. The company supplied gas compression and power generation packages for the FPSO. This contract was awarded in November 2009.

Technip received a contract for the development of the Aseng field. The contract included engineering, supply, installation and pre-commissioning of 19 miles (30 kilometers) of flexible pipe systems, including six flexible risers, and flexible flowlines and jumpers. Also included in the contract is the installation of the subsea production system, including manifolds, flying leads and umbilicals. Offshore installation was carried out mid-2011.

Aseng's production came online on Nov. 6, 2011 and is reaching a production level of 50,000 bopd. Over the life of the project, Noble expects to recover at least 100 to 120 million barrels of oil. An estimated 450 to 550 Bcf/d (1 Bcm/d) of gas resources will be produced as part of an integrated gas project once the pressure maintenance phase is completed.



The Alen project, formerly Belinda, is located in Block O, offshore Equatorial Guinea. Noble Energy operates the project, holding a 45% interest. Partners in the license include GEPetrol (30%), and Glencore Exploration (25%).

On Jan. 12, 2011, The Ministry of Mines, Industry, and Energy of the Republic of Equatorial Guinea approved Noble's Alen condensate/gas-recycling project.

Initial field development will include three production wells and three subsea natural gas injection wells tied to a processing platform. Produced condensate will be separated and piped to the Aseng FPSO on Block I, located about 15 miles (24 kilometers) to the south. Associated natural gas will be re-injected back into the reservoir to maintain pressure and maximize liquid recoveries.

The Alen processing facility, moored in 240 feet (73 meters) of water, is designed to handle 440 MMcf/d of natural gas and 40,000 bopd of condensate. The Alen field will commence production in 2013 and is anticipated to flow at a gross rate of 37,500 bopd. Natural gas re-injection is estimated at 380 MMcf/d during gas-recycling.

The total cost of the development is projected at US $1.6 billion.
Activities
Status Updates
Alen Development Remains On Schedule
Type: Development Activity

Nov. 2012 - PA Resources announced work on the Alen field development in Blocks O and I, offshore Equatorial Guinea, is progressing on schedule. The goal remains to achieve first production in the second half of 2013. Fabrication of platform facilities is in advanced stages and installation of flowlines and umbilicals is expected in 4Q 2012. The development will be comprised of a wellhead platform connected by a bridge to a central processing platform. Once on-line, Alen should produce 33,000 barrels of oil per day via three production wells.

Noble Energy Brings Aseng Online
Type: Production Start

Nov. 2011 - Noble Energy announced that first oil has flowed from the Aseng field into the FPSO on Nov. 6, 2011. Production has steadily ramped up to a rate of about 50,000 bopd as four subsea wells came online. The first tanker of oil from Aseng should be offloaded in December 2011. The operator is currently focusing on the Alen field development (that will connect to the Aseng FPSO), which should commence production in 2013. The Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy operates the Aseng field with a 38 percent interest. Partners include Atlas Petroleum (27.55 percent), Glencore Exploration (23.75 percent), PA Resources (5.7 percent) and GEPetrol (5 percent).

Aseng to Commence Production by Year-End
Type: Status Update

Oct. 2011 - PA Resources, a partner in the Aseng field, says development of the field is ahead of schedule with production expected to commence by year-end. Development drilling is completed, and subsea installation activities are continuing. The Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40 percent interest; Atlas Petroleum International Limited holds a 29 percent interest; Glencore Exploration EG Ltd holds a 25 percent interest; and PA Resources holds the remaining 6 percent interest.

Keppel On Track To Complete FPSO Aseng
Type: Status Update

Jul. 2011 - Keppel Shipyard's reconstruction of the Aseng FPSO is nearing completion. The company's work scope on FPSO Aseng includes refurbishment and life extension works, upgrading the accommodation facilities, installing and integrating the topsides, as well as fabricating and integrating the internal turret. The FPSO, chartered by Noble Energy for the development of the Aseng field in offshore Equatorial Guinea, is capable of processing 80,000 bopd and storing up to 1.7 MMbbl of oil. Aseng Production Company, a joint venture by SBM Offshore and Compania Nacional de Petroleo de Guinea Ecuatorial, the state oil company of Equatorial Guinea, will operate the FPSO. The Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40% interest; Atlas Petroleum International Limited holds a 29% interest; Glencore Exploration EG Ltd holds a 25% interest; and PA Resources holds the remaining 6% interest.

McDermott Wins Fabrication of Alen Project Offshore West Africa
Type: Contract Award

Feb. 2011 - McDermott received a contract to fabricate a 15,000-ton platform for Noble Energy's Alen gas-condensate development project off the east coast of Bioko Island, Equatorial Guinea. The company will manage the construction, load out and installation aids for a 15,000-ton central production platform, including living quarters, and a smaller 2,000-ton wellhead jacket and pile, stated the press release. The project is expected to commence in the first quarter of 2011. The Alen project is located in Block O, offshore Equatorial Guinea. Noble Energy operates the project, holding a 45% interest.

Noble: Govt. Sanctions Offshore Equatorial Guinea Alen Project
Type: Status Update

Jan. 2011 - The Ministry of Mines, Industry, and Energy of the Republic of Equatorial Guinea has approved Noble's Alen condensate/gas-recycling project. The project was sanctioned by Noble in December 2010, followed by the approval of all partners. Initial field development will include three production wells and three subsea natural gas injection wells tied to a processing platform. Produced condensate will be separated and piped to the Aseng FPSO on Block I, located about 15 miles (24 kilometers) to the south. Associated natural gas will be re-injected back into the reservoir to maintain pressure and maximize liquid recoveries. The Alen processing facility, moored in 240 feet (73 meters) of water, is designed to handle 440 MMcf/d of natural gas and 40,000 bopd of condensate. The Alen field will commence production in 2013 and is anticipated to flow at a gross rate of 37,500 bopd. Natural gas re-injection is estimated at 380 MMcf/d during gas-recycling. The total cost of the development is projected to be US $1.6 billion. Currently, the front end engineering and design work was completed, and the operator is negotiating and awarding key project contracts, including the platform facility construction and installation, as well as necessary drilling resources. The Alen project is located in Block O, offshore Equatorial Guinea. Noble Energy operates the project, holding a 45% interest.

Mustang Receives FEED Contract for Belinda Project
Type: Contract Award

May. 2010 - Mustang, part of international energy services company John Wood Group PLC, will perform a front-end engineering design for the Belinda project in Block O, offshore Equatorial Guinea. The scope of the FEED includes the design of both the jacket and topsides of the facility, which will process gas condensate. The Belinda project is being designed as a gas cycling development designed to strip condensate from the field and re-inject the gas for future sales.

Development Work Continues on Aseng Field
Type: Status Update

Apr. 2010 - A total of five production wells, three injection wells and two gas injection wells are planned to be drilled in Block I on the Aseng field in 2010 and 2011. By summer, an additional drilling rig will arrive to assist in the development work. Production from the field is expected to commence in mid-2010. The recently sanctioned Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40% interest; Atlas Petroleum International Limited holds a 29% interest; Glencore Exploration EG Ltd holds a 25% interest; and PA Resources holds the remaining 6% interest.

InterMoor Receives Preset Mooring Project for Aseng Field
Type: Contract Award

Apr. 2010 - InterMoor Inc. was awarded a contract to provide the design, engineering, procurement and installation services for preset moorings in the Aseng field. Five preset mooring legs will be installed at a water depth of roughly 3,445 feet (1,050 meters). Noble Energy will use the Pride South Pacific and the Atwood Hunter semisubs for the project, and the Maersk Terrier will be used as the installation vessel. The Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40% interest; Atlas Petroleum International Limited holds a 29% interest; Glencore Exploration EG Ltd holds a 25% interest; and PA Resources holds the remaining 6% interest.

Noble Energy Awards Development Contract for Aseng Field
Type: Contract Award

Jan. 2010 - Technip received a contract for the development of the Aseng field. The contract includes engineering, supply, installation and pre-commissioning of 19 miles (30 kilometers) of flexible pipe systems, including six flexible risers, and flexible flowlines and jumpers. Also included in the contract is the installation of the subsea production system, including manifolds, flying leads and umbilicals. Offshore installation work should be carried out mid-2011. Aseng field is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters). Noble Energy serves as the operator and holds a 40% interest; Atlas Petroleum International Limited holds a 29% interest; Glencore Exploration EG Ltd holds a 25% interest; and PA Resources holds the remaining 6% interest.

Dresser-Rand Supplies Equipment for Aseng FPSO
Type: Contract Award

Nov. 2009 - Dresser-Rand received a contract from SBM Offshore to supply advanced turbomachinery for an FPSO to be deployed in the Aseng field, which is located on Block I offshore Equatorial Guinea in a water depth of 3,100 feet (945 meters) and operated by Noble Energy. The company will supply gas compression and power generation packages for the FPSO, and the vessel will have the capacity to handle 120,000 barrels of liquid per day, including processing of 80,000 bopd, injection of up to 150,000 b/d of water, as well as handling 170 MMcf/d.

Noble Gets Go-Ahead for Aseng Oil Project in Equatorial Guinea
Type: Status Update

Jul. 2009 - Noble Energy announced that the Plan of Development for the Aseng oil project has been sanctioned by the Company, its partners, and the Ministry of Mines, Industry, and Energy of the Republic of Equatorial Guinea. Formerly known as Benita, Aseng was originally discovered in 2007 as a gas-condensate field in Block "I" offshore Equatorial Guinea. Initial development of the field will include five subsea wells flowing to an FPSO where the production stream will be separated.

Alen Platform
Under Construction - Feb 01, 2011 to -

Aseng FPSO
Producing - Nov 06, 2011 to -

Under Construction - Jul 22, 2009 to Nov 05, 2011

Alen (Belinda)
Under Development - May 04, 2010 to -

Mustang will perform a front-end engineering design for the Belinda project in Block O, offshore Equatorial Guinea.

Appraisal Drilling - Jun 2007 to Aug 2007

The O-3 appraisal well, located in 1,740 feet of water and approximately 4.2 miles southwest of the original Belinda discovery (O-1), was drilled to a total depth of 9,500 feet. The O-3 well successfully extended the Belinda discovery by establishing significant downdip resources.

Aseng
Producing - Nov 06, 2011 to -

Under Development - Jul 22, 2009 to Nov 05, 2011

Noble Energy announced that the Plan of Development for the Aseng oil project has been sanctioned by the Company, its partners, and the Ministry of Mines, Industry, and Energy of the Republic of Equatorial Guinea.

Discovery (Drilled) - Jan 2007 to 2007

Formerly known as Benita, Aseng was originally discovered in 2007 as a gas-condensate field in Block "I" offshore Equatorial Guinea.

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
Field Updated Nov 07, 2012 198
Facility Updated Nov 07, 2012 198
Activity Added Nov 07, 2012 198
Facility Updated Dec 13, 2011 528
Field Updated Nov 15, 2011 556
Field Status Updated Nov 15, 2011 556
Field Status Added Nov 15, 2011 556
Facility Status Updated Nov 15, 2011 556
Facility Status Added Nov 15, 2011 556
Project Description Updated Nov 15, 2011 556
Activity Added Nov 15, 2011 556
Field Updated Oct 17, 2011 585
Activity Added Oct 17, 2011 585
Facility Added Sep 07, 2011 625
Facility Status Added Sep 07, 2011 625
Project Description Updated Sep 07, 2011 625
Field Updated Jul 19, 2011 675
Project Description Updated Jul 19, 2011 675
Activity Added Jul 19, 2011 675
Project Description Updated Jun 02, 2011 722
Project Description Updated May 16, 2011 739
Project Description Updated Feb 24, 2011 820
Field Updated Feb 01, 2011 843
Activity Added Feb 01, 2011 843
Field Updated Jan 12, 2011 863
Project Description Updated Jan 12, 2011 863
Activity Added Jan 12, 2011 863
Field Status Updated May 04, 2010 1116
Field Updated May 04, 2010 1116
Field Status Added May 04, 2010 1116
Field Added May 04, 2010 1116
Activity Added May 03, 2010 1117
Field Updated Apr 28, 2010 1122
Activity Added Apr 28, 2010 1122
Field Updated Apr 13, 2010 1137
Activity Added Apr 13, 2010 1137
Project Description Updated Jan 20, 2010 1220
Activity Added Jan 20, 2010 1220
Field Updated Jan 20, 2010 1220
Project Description Updated Jan 05, 2010 1235
Field Updated Nov 16, 2009 1285
Activity Added Nov 16, 2009 1285
Field Updated Nov 02, 2009 1299
Project Description Updated Jul 30, 2009 1394
Field Added Jul 22, 2009 1402
Field Status Added Jul 22, 2009 1402
Field Status Updated Jul 22, 2009 1402
Activity Added Jul 22, 2009 1402
Project Description Added Jul 22, 2009 1402
Field Updated Jul 22, 2009 1402
Facility Added Jul 22, 2009 1402
Facility Status Added Jul 22, 2009 1402
Facility Updated Jul 22, 2009 1402

    Project Update History Search - View all the lastest updates made by the SubseaIQ team.
 
Project Map
Project Image
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Facility Name Alen Platform
Duty Gas
Operator Noble Energy
Current Status Under Construction since 2011
Host Type Fixed Platform
Water Depth 530 m / 1,749 ft
Dev.Cost n/a
 
Region Equatorial Guinea
 
Location Block O
Facility Name Aseng FPSO
Duty Oil/Gas
Operator Noble Energy
Current Status Producing since 2011
Host Type FPSO
Water Depth 945 m / 3,119 ft
Dev.Cost n/a
 
Region Equatorial Guinea
 
Location Block I
 
Field Name Aseng
Discovery Date Jan 2007
Block Block I
Reserve Type Oil/Gas
Current Status Producing
Production Start Nov 2011
Water Depth 945 m / 3,119 ft
Field Name Alen (Belinda)
Discovery Date
Block Block O
Reserve Type Gas
Current Status Under Development
Production Start
Water Depth 530 m / 1,749 ft