DRILLING

Goolwa-1 shows good, but skinny

Beach Petroleum and partner Great Artesian Oil and Gas have abandoned the Goolwa-1 well, but are encouraged they have proved up an active hydrocarbon migration pathway through the Lower Patchawarra Formation in permit PEL 107, on the western margins of the Cooper Basin in South Australia.

Goolwa-1 shows good, but skinny

Two drill stem tests (DST’s) were conducted, after very good indications of hydrocarbons (gas and/or liquids) were encountered during drilling.

A company statement on Friday said: “the confirmation of an active hydrocarbon migration pathway in the area is encouraging. Other prospects in the area will be reassessed based on the results of this well.”

DST 1 tested an interval in the Lower Patchawarra Formation in a sandstone where gas detector readings were high and fluorescence in samples ranged up to 80-100% (indicative of the presence of condensate-rich gas or liquid hydrocarbons). However, reservoir quality for this interval proved to be poor and unlikely to support production of oil or gas in commercial quantities.

DST 2 tested a shallower sandstone interval of the Patchawarra and confirmed reservoir quality for this zone was good. However, there was no significant recovery of hydrocarbons.

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