News

Exploration well 7130/4-1 Ørnen in PL708 in the Barents Sea completed

30.12.2015

   

  • Main reservoir target found to have oil with water as the mobile phase

  • Deep reservoir target found with thin gas zone

Lime Petroleum Norway AS ("Lime Norway") has participated in the drilling of exploration well 7130/4-1 on the Ørnen (Eagle) prospect in Barents Sea licence PL708. Operator Lundin Norway AS ("Lundin") started drilling the well on 22 November 2015, using the semi-submersible rig Transocean Arctic in a water depth of 288 metres and located in an accessible area only some 84 km from the coast. The well has reached total depth at 3160 metres below sea surface and is in the process of being plugged.

The main target of the Ørnen well was a special type of Late Permian aged silica rich reservoir, proven in nearby wells including well 7128/4-1 Seiland discovery in PL707 where Lime Norway also participates. The reservoir target was found hydrocarbon bearing with a total thickness of almost 40 metres as demonstrated by wireline logs consistent with the pre-drill prognosis based on the liquid hydrocarbon indicator Rex Virtual Drilling. However, the reservoir quality was poorer than expected having a complex pore system, and sampling showed water to be the mobile phase. Uneven distribution of porosity and permeability in the reservoir had been identified as the main geo-technical risk for the Ørnen prospect.

The secondary target, Permo-Carboniferous carbonates, was encountered with minor hydrocarbon shows and poor reservoir characteristics.

Subsequently, the well was deepened into the third target, Lower Carboniferous sandstones encountering moderate to good quality sands with a gas column of 5 metres.

Extensive data acquisition and sampling was carried out including conventional coring and fluid sampling which will be analysed to determine the further prospectivity of the licence.

Exploration well 7130/4-1 is the first to be drilled in PL 708, which is held by operator Lundin at 40 per cent, Lime Norway at 10 per cent, Lukoil Overseas North Shelf AS at 20 per cent, Edison Norge AS at 20 per cent and North Energy ASA at 10 per cent.

Lime Norway has further a participating interest of 20 per cent in the nearby licence PL707 (10 per cent subject to authority approval) and 20 per cent in each of the licences PL769 and PL770.