Origin Energy, on behalf of the L11 Joint Venture, advises that the exploration well Redback South 1 reached a total depth of 3934 mMD (3753 mTVDSS) on 17 September after intersecting the Wagina Sandstone reservoir objective at a depth of 3882.5 mMD (3701.5 mTVDSS).

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 kilometres northeast of the Beharra Springs Gas Plant.

At 0600 hours Western Standard Time today, the well was being prepared for casing and completion.

Well type and location

Gas exploration well, Redback South prospect, 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.

Tags: Origin Energy