Siakap North-Petai
- Type: Rig
- project
- Latitude: 6.0750000
- Longitude: 114.3430000
Siakap North-Petai Oil Field Profile
Location and Geology
The Siakap North-Petai (SNP) oil field is located in Block K on the west coast of Sabah, Malaysia, in the southern part of the South China Sea. It is situated at a water depth of approximately 4,429 feet (1,350 meters).
The field's seabed features vary, with the southern half having a soft and rounded seabed, while the northern half contains high reliefs. The sediment samples from the seabed consist mainly of soft and greenish clay, with major constituents of silt and clay, and small amounts of fine sand.
Operator and Partners
The SNP field is currently operated by PTT Exploration and Production Public Company Limited (PTTEP), although it was initially operated by Murphy Oil. The partners in the field development include:
- PTTEP: 22.4% (though initially Murphy Oil held 32%)
- PETRONAS Carigali: 26%
- ConocoPhillips: 21%
- Shell: 21%
- Pertamina: 9.6% (as per some later updates).
Discovery and Development
- Siakap North was discovered in 2009 by Diamond Offshore’s Ocean Rover semi-submersible rig.
- Petai was discovered in 2007, located near Block G.
- The discoveries were unitised and developed as a single field, with the unitisation completed by 2011.
Production
- First oil production from the SNP field began in February 2014, with initial production from four oil wells.
- The production was expected to peak at 35,000 barrels of oil per day (bpd) by mid-2014.
- As of 2022, the field produces approximately 5.22 million barrels of oil per year and 49.2 million cubic meters of gas per year.
Infrastructure and Storage Facilities
- The field is developed with eight subsea production wells and five water injection wells, drilled from four subsea drill centers.
- The production is gathered at the production manifolds and then transported through a dual production pipeline system to the Kikeh Floating Production, Storage, and Offloading (FPSO) vessel, which has a storage capacity of about 120,000 bopd.
Contractors Involved
- McDermott: Provided engineering, procurement, construction, installation, transportation, and commissioning of the subsea infrastructure, including rigid insulated pipe-in-pipe production flowlines, a rigid water injection flowline, and a main umbilical system. The fabrication works were completed at Port Klang and Batam facilities, with design and engineering support from McDermott’s Singapore and Houston facilities.
- Aker Solutions: Awarded a contract in May 2012 to provide the subsea production system, including subsea trees, manifolds, well jumpers, and engineering for topside controls, along with lifecycle support services.
Reserves
- The SNP field has estimated remaining recoverable reserves of 14.36 million barrels of crude oil and condensate, and 573.98 million cubic meters of gas as of 2022.
Production Timeline and Future Outlook
- Peak production was achieved in 2015, and based on economic assumptions, production is expected to continue until the field reaches its economic limit in 2029. The field currently accounts for approximately 1% of Malaysia’s daily oil output.