Dawes Island Marginal Field
OPL 2006
Bonny Terminal

The Dawes Island Marginal Field

The Dawes Island Marginal Field is located within OPL 2006 (formerly delineated as OML 54) in the Niger Delta. OML 54 was initially part of the NNPC/Chevron Nigeria Joint Venture, which was operated by Chevron. It was eventually re-offered as OPL 2006 during the Nigerian Government’s 2007 Licensing Round.

The Dawes Island field is located in the south-eastern segment of the block in pre-dominantly swamp terrain, with a water depth of around 4m. The field is about 15km south-west of Port Harcourt, 7km west of the Onne Free Trade Zone, and 35km north of the Bonny Terminal. It is administratively located within Rivers State and covers an area of 40 km2.

Dawes Island is covered by 129 km2 of 3D seismic data, which was carried out by Chevron in 1996, as a joint survey with Shell over its contiguous acreage. Chevron estimates recoverable reserves and resources at up to 19.5m barrels, which cuts across two fault blocks (Up-thrown Block A and Down-thrown Block B). The field was discovered by the DI-1 exploration well which was a vertical well drilled by Chevron in 1979 to 10,335 ft. The exploration well encountered hydrocarbons in multiple sands between 8,500 – 9,700 ft MD/TVD but had to be abandoned due to a stuck drilling pipe.

The field was initially delineated and awarded as a marginal field during the 2003 Marginal Field Bid Round. Following more than a decade of non-performance of the required development work on the field, Petralon’s subsidiary Petralon 54 Limited led an investment into the asset and was instrumental to development initiatives commencing with the re-entry and drilling of the Dawes Island well which led to establishing and confirming the presence of hydrocarbons in two reservoirs – the G and H sands. The re-entry/drilling campaign was carried out about 200 ft from the DI-1 well and drilled to a depth of 9,400 ft. The well was subsequently completed by Petralon 54 Limited as a dual-string producer and an Early Well Test and subsequently an Extended Well Test were carried out, following the mobilisation of surface facilities – an Early Production Facility (EPF), the accompanying storage infrastructure, the requisite Environmental, Health Safety and Security (EHSS) accoutrements and accommodation on the field. From 2014 to 2020 Petralon 54 Limited invested over $25 million on the drilling program and development initiatives on the field.

Petralon 54 Limited was notified of the award of a 100% interest in the field in 2021 by the now defunct Department of Petroleum Resources (DPR) with approval of award from His Excellency Muhammadu Buhari, President of Nigeria and Honourable Minister of Petroleum Resources, following its payment of the required signature bonus to the Federal Government of Nigeria.

As the new operator of the field, Petralon 54 Limited is in the process of commencing operations with a focus on restarting production to achieve collective value for all stakeholders. We notably intend to engage the youths of our community in gainful employment, bring deserved prosperity to the community, and generate revenue for the nation by paying taxes, while delivering value to all stakeholders. We have begun mobilisation of facilities and resources required to start full production of the field by the end of 2022.