Lille John well proves oil short of target

PA Resources (PAR) has discovered oil in Miocene sandstones in the Lille John prospect in the Danish North Sea.

Offshore staff

STOCKHOLM, SwedenPA Resources (PAR) has discovered oil in Miocene sandstones in the Lille John prospect in the Danish North Sea.

To date the well in License 12/06 has encountered around 5 m (16.4 ft) of hydrocarbon pay in a 25-m (82-ft) thick Miocene sandstone/shale interval, at a depth of 900 m (2,953 ft) below mean sea level.

Initial analysis of logs and samples suggest a sweet, light oil (34-35 deg API) with a gas:oil ratio of 350 cf/bbl, with no water.

The Lille John well location is 17 km (10.6 mi) south of the producing Gorm field and 8 km (4.9 mi) from PAR’s Broder Tuck gas-condensate discovery.

According to the company, the Miocene sandstones in Lille John are well-imaged on seismic data as an extensive seismic amplitude anomaly. Pre-drill, this was interpreted to reflect gas or oil in a sandstone reservoir.

The well was originally drilled to access a primary Chalk target, but it was unable to penetrate either this or the underlying Mid-Jurassic secondary target due to an unexpected pore pressure regime and extensive fracturing at Chalk level.

As a result, the well is being sidetracked to a revised location with the aim once more to penetrate the Chalk target and establish its fluid content and reservoir development.

Bo Askvik, President and CEO of PAR, said: “We are as operator very pleased to have made this discovery of high quality oil, especially at such a shallow reservoir depth. The seismic imaging of the Miocene clearly reveals the distribution of the oil-bearing reservoir and shows additional prospectivity at the Miocene level elsewhere within License 12/06.

“This is a very encouraging result at a stratigraphic level which has not generally been explored in Denmark.”

10/18/2011

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