The Caldita and Barossa fields are located approximately 270 kilometres north-west of Darwin.
A three-well appraisal drilling campaign was completed in the first half of 2015.
The Barossa-2 well was successfully drilled and intersected 88 metres of net pay across a 217-metre gross interval across the Upper Elang, Lower Elang and Plover reservoirs. Barossa 3, appraising upside to the north, intersected 104 metres of net pay across a total gross gas bearing interval of 152 metres. Barossa 4, drilled to the east of the field, further confirmed the resource position.
The results of the appraisal program proved significant upside to the resource position for the Barossa gas field and demonstrates the presence of high permeability sands over an extensive area of the field. The well results strengthen Santos’ resource position in the Bonaparte Basin and means the Barossa gas field is well positioned to supply gas for either back-fill or expansion at Darwin LNG.
The Barossa appraisal drilling campaign was funded by joint venture partner, SK E&S, up to a US$260 million cap. Santos holds a 25% interest in the Barossa-Caldita joint venture along with partners ConocoPhillips (37.5% and operator) and SK E&S (37.5%).
Development options for these fields include tie back to the Darwin LNG plant, either as an expansion or as back-fill, as well as floating LNG.