AWE and Origin hit gas discovery in Western Australia

Sep 22, 2009 02:00 AM

Origin Energy, on behalf of the L11 Joint Venture, advises that the exploration well Redback South 1 reached a total depth of 3,934 m MD (3,753 m TVDSS) on 17 September after intersecting the Wagina Sandstone reservoir objective at a depth of 3,882.5 m MD (3,701.5 m TVDSS).
Wireline log and pressure data indicate the presence of gas in the uppermost Wagina Sandstone.

Gas samples have been recovered from the reservoir and preliminary analyses indicate gas composition to be similar to that seen in the nearby Beharra Springs gas field. Reservoir development in the Wagina Sandstone is also comparable with that in the Beharra Springs field, despite this reservoir having been encountered some 400 m deeper.
The commercial significance of this discovery is dependent on further evaluation including testing to determine the gas flow rate. The well is located approximately 2.2 km northeast of the Beharra Springs Gas Plant.

Well type and location
Gas exploration well, Redback South prospect, is located onshore northern Perth Basin, Western Australia (L11).
Redback South 1 was drilled as a directional well to intersect the reservoir interval approximately 570 metres SSE of the Redback 1 surface location. The structural compartment being targeted by this well on the downthrown side of a fault immediately south of the Redback 1 well, with closure independent of the Redback 1 structure.