IN-FORM Western Australian oil and gas exploration partners Quadrant Energy and Carnarvon Petroleum have confirmed that state-of-the-art semi-submersible rig, the GSF Development Driller-1, has been contracted to drill the key Phoenix South-3 well off the WA coast next year.

To be drilled in the same region as the exciting Phoenix South and Roc oil and gas discoveries, Phoenix South-3 is slated to spud in a likely drilling window between 1 February and 1 April 2018.

The Transocean Limited owned GSF Development Driller-1 is a sixth generation semi-submersible with dual rig activity allowing for efficient drilling operations.

Phoenix South-3 is being designed as a redrill of the Phoenix South-2 well that discovered gas and condensate at the top of the Caley interval.

The Phoenix South Caley structure is estimated to contain a gross mean recoverable prospective resource of 489 billion standard cubic feet (Bscf) of gas and 57 million barrels of associated condensate.

The estimated condensate-to-gas ratio is very significant and is based on surface gas sampling from a permeable section at the top of the Caley Sandstone encountered while drilling the Phoenix South-2 well.

The primary objective of the Phoenix South-3 well is to evaluate the Caley interval that the Phoenix South-2 well drilled into but was unable to drill through and evaluate.