The Greater Moran Oil Project straddles three licence areas, namely PDL 2, PDL 5 and PDL 6 and is located in the Southern Highlands Province, 480 kilometres north-west of Port Moresby.
The first Moran well was drilled in June 1996 and oil was discovered in September 1996 when the Moran 1X well sidetrack, which is located within PDL 2 (the licence area hosting the Kutubu Oil Project) encountered oil-bearing sands. Production commenced from the field in January 1998 by way of an Extended Well Test (EWT) programme, producing oil from the Moran 1X, 2X and 5 wells, all of which are located within PDL 2. An EWT on Moran 4 located in PDL 5 (PPL 138) commenced production in April 2000.
In March 2001, the Central Moran Unit Agreement between the PDL 2 and PDL 5 Joint Venture partners was executed, and full field development of the Central Moran Project was completed in September 2002.
The Central Moran Oil Field was developed as a single Unit with ownership of the Unit in the proportion of 45% by PDL 2 and 55% by PDL 5. The Central Moran Project was designed and installed based on:
Moran production is processed at the Agogo Production Facility (APF) and liquids are then piped to the Central Production Facility for further processing, storage and export through the export pipeline. The Moran PDL-5 participants pay a tariff to the PDL-2 and PL-2 partners for processing and transporting crude through the Kutubu system.
In late 2003, NW Moran, an extension of the Moran field towards the north west, into PPL 219, was discovered. In September 2005, an Extended Production Test (EPT) of the NW Moran 1 well commenced, following the construction of a 23 kilometre pipeline linking NW Moran into the APF. This, together with infrastructure debottlenecking, additional infill wells and success in re-pressurising the Moran reservoir due to improved facilities reliability, has resulted in an increase in production rates in recent years.
In late 2006, the PDL 2, PDL 5 and PPL 219 (now PDL 6) joint venture partners agreed to establish a single Greater Moran Unit across the Moran and NW Moran fields. The unitisation split is 55:44:1 to PDL 5, PDL 2 and PDL 6 respectively, giving Oil Search a 49.51% interest in the Unit. A Production Development Licence over the NW Moran field, PDL 6, was awarded in 2008.
As at 31 December 2012, Oil Search's share of remaining recoverable 2P reserves at Moran was 15.9 million barrels. The reserves are contained within generally high permeability oil rims in the Toro and Digimu sandstones.
Moran crude is similar to Gobe and Kutubu crude and is sold as “Kutubu Blend”.
Oil Search’s share of Moran 2013 second quarter production was 0.52 mmbbl, 12% higher than in the first quarter. The field produced at a gross average rate of 11,611 bopd compared to 10,440 bopd in the first quarter.
While production was impacted in May by the downtime in the APF-CPF flowline, noted above, field production rates were strong throughout the quarter. In particular, production from the recently completed Moran 13 ST3 well has been very encouraging, with rates of around 2,500 bopd achieved from the Digimu reservoir.
At the end of the quarter, operations commenced on a further Moran development well, Moran 10 ST2. This well is a sidetrack of the Moran 10 ST1 well and is targeting the Digimu reservoir in the A Block.