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SK408 Gas Field Development, Sarawak

  • Project Type

    Offshore gas field development

  • Location

    Sarawak, Malaysia

  • Reserves

    3tcf

  • Ownership

    SapuraKencana Energy Sarawak (40%), PETRONAS Carigali (30%) and Sarawak Shell (30%)

  • First Gas

    Q4 2018

SK408 gas field comprises five gas discoveries located in the Central Luconia gas province 120km offshore Sarawak, Malaysia. The five gas fields include Gorek, Larak, Bakong, Teja and Legundi.

Located in shallow waters, the SK408 block covers a total area of 4,480km². The partners in the Block SK408 are Sapura Exploration and Production (Sapura E&P) (formerly SapuraKencana Energy Sarawak, 40%), PETRONAS Carigali (30%) and Sarawak Shell Berhad (30%).

Sapura E&P is a wholly-owned subsidiary of Sapura Energy and the operator of the Block SK408. It is the developer and operator of the Larak and Bakong gas fields, while Sarawak Shell Berhad is the operator of the Gorek gas field.

First gas from the SK408 development is expected in the fourth quarter of 2018.

Block SK408 gas fields discovery

The SK408 gas field development project will develop the five gas discoveries made in the Block SK408 by Sapura E&P during its 2014 drilling campaign. The drilling programme was a part of the SK408 production sharing contract signed between Sapura E&P, Petronas Carigali and Shell in December 2012.

The contract included a commitment to drill ten wildcat wells in Block SK408 by Sapura E&P.

Four offshore wells were drilled in June 2014, which led to the discovery of natural gas in the Late Miocene Carbonate reservoirs. The Teja-1 discovery well led to the discovery of Teja gas field. The well lies south-east of the Cili Padi gas field and struck 219m of gross hydrocarbons column.

“The development of the gas discoveries in block SK408 will be carried out in phases.”

The Gorek-1 discovery well led to the discovery of the Gorek gas field. The well is located south-east of the F23 gas field and discovered a gross gas column of 235m.

Legundi-1 was the third well drilled in a down-flank location and led to the discovery of the Legundi field. The well encountered a 139m gas column.

The fourth well named Larak-1 was drilled to the south of F6 gas field in a down-flank location. The well led to the discovery of the Larak field and encountered a 333m gross gas column.

Bakong-1 was the fifth and final well drilled in the block in August 2014, which led to the discovery of the Bakong field. It encountered a 600m gross gas column in the Late Miocene Carbonate reservoirs.

The five gas discoveries are estimated to contain a total of three trillion cubic feet (tcf) of gas in-place.

Exploration of Block SK408

Sapura E&P drilled three exploration wells targeting the Late Miocene Carbonate reservoirs in block SK408 as part of its 2015 drilling campaign.

The Jerun-1 well located 5km north of the Bakong gas discovery encountered a gross gas column of 800m, while the Jeremin-1 well located 15km west of the F9 gas field encountered a gas column of 104m.

The third exploration well, Putat-1, was drilled 20km north of the Cili Padi gas field, but did not encounter any hydrocarbons.

SK408 gas field development details

The development of the gas discoveries in block SK408 will be carried out in phases. The first phase comprises the development of the Gorek, Larak and Bakong gas fields.

The final investment decision (FID) for the development of the three fields was taken in April 2018. The FID was taken following the approval of the field development plan by Petroliam Nasional Berhad (PETRONAS). The gas sales agreement for phase one of the project was also signed.

The gas fields will be developed using three different wellhead platforms, which will be tied-back to the F6 processing and compression facility operated by Sarawak Shell. The produced gas will be transported to the MLNG complex located onshore in Bintulu, Malaysia.