Project Profile
Location: Offshore Indonesia, Natuna Sea Block A, Indonesia
Reserves: 200 Bcf of undeveloped proven reserves
Water Depth: 77m / 254 ft
Start-up Year: June 2013
Oil production at the Anoa field began in November 1990. Additional development was undertaken in 1996 with the installation of the Anoa Gas Export platform. The Anoa Phase 4 project is expected to be completed during 2013 and will develop around 200 Bcf of undeveloped proven reserves, through increasing the Anoa compression capability. Phase 4 will allow the commercialisation of roughly 200 Bcf of undeveloped proven reserves. The Anoa field is located off Indonesia in Natuna Sea Block A at water depth of 77 m / 254 ft. Premier (28.667%) operates the field on behalf of its partners KUFPEC (33.333%), Hess (23%) and Petronas (15%). Premier had successfully tested the Lama formation within the Anoa field on the Natuna Sea Block A. The WL-5 development well was deepened to a total depth of 11,012 feet (3,356 metres) to investigate the exploration potential of the Lama formation within the Anoa field. The Lama formation flowed gas at a rate of 17 MMcf/d through a 48/64-inch choke. The results of the test will be intergrated with the log and seismic data to determine the ultimate recoverable resource of this deeper reservoir that will be produced through the Anoa facility.
On April 2012, Premier Oil had performed workovers on the A7 and A11 wells on the Anoa field, which added a further 30 MMcf/d of gas deliverability. A new oil well (A22) was successfully completed, which added around 1,500 bopd of incremental oil production. A three-well drilling campaign on the field\'s West Lobe platform progressed well and included the discovery of new reserves in the deeper Lama reservoir below Anoa. In order to upgrade the compression facilities and to increase production capacity on the producing Anoa field, a major \'brown-field\' development project has been sanctioned, extending the assumed field plateau and developing some 200 Bcf of gross field reserves. This project, known as Anoa Phase 4, will be completed in 2013.
Decommissioning
In 2016 GE Oil & Gas’ subsidiary secured a field decommissioning contract offshore Indonesia. The work, to be carried out by PT Vetcogray, a subsidiary of GE, will entail the provision of support the shut-down of four subsea wells in the Anoa field, offshore Indonesia. Under the contract awarded, GE Oil & Gas will prepare the field’s subsea production trees for removal, supporting the removal of flowlines and production umbilicals, installation of intervention hot stab assemblies and provision of annulus and flowline flanges. once the wells have been made ready for decommissioning, the tree caps, subsea trees (XTs) and tubing hangers will be removed, cement plugs set and the seabed cleared to comply with local regulations.
Operators:
Premier Oil: Operator with 28.667% interest
KUFPEC: 33.333% interest
Hess Corp: 11.5% interest
Petronas: 15% interest
Joint Venture with 11.5% interest
Production Public Company Limited
Pertamina Hulu Energy
Contractors:
PT Vetcogray (a subsidiary of GE Oil & Gas): A field decommissioning contract which includes the preparation of the field’s subsea production trees for removal, supporting the removal of flowlines and production umbilicals, installation of intervention hot stab assemblies and provision of annulus and flowline flanges. (August, 2016)