Gas reserves (WestSide share) - 39 PJ (3P)
76 PJ (3P)
Ownership
WestSide: 25.5%
Mitsui E&P Australia: 24.5%
QGC - A BG Group business: 50%
About the project
The Tilbrook CSG pilot is designed to appraise the Moranbah Coal Measures and is comprised of one dual-lateral horizontal appraisal well (Tilbrook #8), one vertical appraisal well (Tilbrook #7) and two observation wells (Tilbrook #4 and Tilbrook #6).
The pilot is located 60 km to the south of Collinsville, adjacent to the Moranbah to Townsville gas pipeline.
The coal seams of the target Moranbah Coal Measures in this area lie at depths between 300 metres and 600 metres and contain between 7 metres and 15 metres of gas-bearing coal seams.
Initial reserve certification of 76 PJ of 3P gas reserves (WestSide share) was achieved in June 2009. WestSide's share has reduced to 39 PJ as a result of Mitsui's farmin to 24.5%.
A dual-lateral horizontal well was completed in June 2009, accessing over 2,000 metres of coal in the coal seam. Production testing of the Tilbrook #8 dual-lateral well is continuing with data being used to progress reservoir modelling.
The northern part of the ATP 688P tenement is estimated to contain a further 674 bcf of gas-in-place (WestSide share). This is being appraised by exploration wells at Bald Hill and Mount Saint Martin.
An extended production test of the current appraisal wells, Tilbrook #7 and Tilbrook #8, is planned to continue.