SANTOS has made a gas condensate discovery at an exploration well in the Browse basin offshore Western Australia, in a project area located close to the Inpex operated Ichthys project.

Located in WA 274 P, the Lasseter-1 well is about 35 kilometres east-southeast of Santos’ Crown discovery and 480 kilometres north-northeast of Broome.

The well intersected a gross gas condensate bearing interval of 405 metres. Wireline logging to date has confirmed 78 metres of net pay over the Jurassic-aged Lower Vulcan and Plover intervals, between 4,880 and 5,285 metres measured depth relative to rotary table (MDRT).

Santos said samples from the well, which was drilled to a total depth of 5,329 metres in a water depth of 404 metres, confirmed excellent mobility in higher porosity sands in the Lower Vulcan, with an estimated 250 metre column for the Lower Vulcan reservoirs.

Santos’ Head of Exploration Bill Ovenden said Lasseter-1, which will be plugged and abandoned as planned, was an important gas discovery for the company.

“Lasseter is a material discovery that adds to our strong position in the Browse, following our success with the Crown discovery in 2012,” he said.

“The Lasseter discovery is well positioned, in close proximity to existing and proposed LNG projects in the Browse basin and other material Santos joint venture exploration prospects. The Lower Vulcan reservoir system, which is optimally developed between the Ichthys and Poseidon structural trends, holds great promise,” Mr Ovenden said.

Santos holds a 30 per cent interest in WA-274-P and is the operator. Joint venture partners are Chevron (50%) and Inpex (20%).