Lockyer Deep-1 gas find exceeds expectations
Australian explorer Norwest Energy on September 22 said the conventional gas discovery at Lockyer Deep-1 in the Perth basin had exceeded pre-drill expectations. Norwest is partnered in the project with Energy Resources, which is the operator.
According to Norwest, petrophysical analysis of wireline data confirms “exceptional reservoir quality” in Kingia Sandstone. The net gas pay is 20.2 m with average porosity of 16% and average permeability estimated at 500 millidarcies. High reservoir pressures indicate an estimated 600-800 m gas column, it said.
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"The Lockyer Deep-1 discovery is an extraordinary outcome for Norwest Energy,” managing director, Iain Smith commented. “The upper Kingia pay interval is arguably the highest quality reservoir encountered thus far within the deep Permian gas play of the north Perth basin, and this fact combined with an inferred significant gas column gives us good reason to believe that the structure hosts gas resources that are greater than our pre-drill high case prospective resource.”
The well is now being completed for production testing of the Kingia Sandstone by running and cementing the production liner to total depth. The joint venture has been preparing for a 3D seismic survey across the greater Lockyer Deep/North Erregulla Deep structure, and will now accelerate the programme in addition to starting planning and procurement for future appraisal drilling, Norwest said.