Northwest Natuna PSC
We are working in the one of the biggest offshore heavy oil in indonesia
Ande-Ande Lumut (AAL) area is located within the Northwest Natuna asset, in shallow waters of approximately 70 meters, with reservoir depths of around 1,100 meters.
The Northwest Natuna block covers an area of approximately 461 km² and lies about 260 km (145 nautical miles) north-northwest of Matak in the Anambas Islands, 510 km northeast of Singapore and Batam, and 1,300 km north of Jakarta.
Situated near the Malaysian border, the block contains the AAL discovery along with several other prospective structures.
Size area
461 km²
Location
Offshore Natuna Sea
PSC signed
December 2004
Asset details
Geo-steered horizontal drilling technology
Coupled with the latest completion equipment (screens, ICDs etc) make this heavy oilfield fully viable.
Ande-Ande Lumut area
Development of the AAL oilfield is currently underway, with first oil targeted by 2027. A Central Production Platform (CPP) will be installed and connected via bridge-linked system to a spread-moored Floating Storage Offloading (FSO) vessel.
Synergies between Prima Energy and marine operations create a real operational experience and significant savings opportunities.
Other area
The Northwest Natuna Area contains a number of low-risk prospects. For example, immediately to the west of AAL, there are structures such as Inu Kertapati and Nakulo. These are likely to contain extensions of the AAL oil accumulation.
Further to the southwest of AAL is the Kirana Prospect. This lies immediately east of Malaysia's East Belumut Oilfield. Kirana has multiple reservoirs capable of trapping oil and gas and it is well-placed to have received oil and gas from surrounding areas.
Appraisal & Development
Oilfield Appraisal
The AAL area is a seahorse-shaped accumulation, approximately 8 km N-S x 4 km E-W which divided into southern, central, and northern segments.
Four wells have delineated on this discovery: AAL-1X drilled in 2000, AAL-2XR and -3X drilled in 2006, and AAL-4X drilled in 2016.
As a result, 3 wells in the central part and 1 well in the south of the discovery have successfully been tested.
Plan of Development
The original AAL Plan of Development (PoD) was approved by SKK Migas in 2011. Prima Energy has now revised the PoD to incorporate new concepts and technologies. The revised plan outlines a staged field development, with Stage 1 already agreed upon.
Heavy oil development is nothing new, but not without challenges. For the AAL area, the challenges include managing the water and sand production, fully understanding the long-term recovery potential of the reservoir, and how best to achieve optimum production.
Our staged development is tailored to address these challenges, while maximizing future value. The initial Stage 1 development will focus on producing from the K Sand (up to 6 wells), including one well to test the G Sand oil.
The approved development plan targets first oil from the AAL Stage 1 development in 2027. To achieve this, the plan involves building an offshore central production platform (CPP), drilling wells from this platform to produce up to 20,000 barrels of oil per day, and converting a suitably sized tanker into an FSO.
