Operator Santos advises that the Barneys Spring 1A corehole has been completed to a total depth of 594.6m in the Boggabri Volcanics, which are effective basement for the Early Permian coals in the Maules Creek Sub-Basin. This well is the second dedicated seam gas well in this east-dipping sub-basin which occupies the northeastern part of PEL 1 (Map).
A total of 26 metres of coal was recorded in 21 seams between 237 and 502 metres, the thickest being 4.4 metres. No final gas desorption data are available as yet, but like the Stoney Creek #1 well, 12 km to the north, a degree of gas-undersaturation is evident, as expected.
There are no permeability or gas composition data available as yet, but results are expected to be similar to Stoney Creek #1
(see ASX Quarterly Report to December 31, 2008), where seam permeability was high, ranging from >100 millidarcys to in excess of one darcy, and gas compositions were very good, typically >90% methane (to a maximum 99.5%).[/