Senex Energy Ltd., Brisbane, has completed a test at its Gemba-1 wildcat in 100%-owned Cooper basin permit PEL 516 with a stabilized flow rate of 8 MMcfd and raised the potential of a new play in the Permian-age Dullingari group sediments.
The well is on the southwest margin of the Allunga Trough, close to existing infrastructure and about 37 km southwest of the Moomba processing facility in South Australia.
Gemba-1 was designed to evaluate the Patchawarra sands which it did successfully and then went on to intersect gas in the deeper Dullingari sands that the company says represents a potential new gas play.
Following a seven-stage hydraulic fracturing program across the interval 2,360-2,730 m in November, Senex conducted a 7-day flow test and recovered a total of 44 MMcf of gas and 88 bbl of liquids. The gas has a 20% carbon dioxide content.
Preliminary interpretation of the results indicates that the pre-drill estimate of 15 bcf of ultimate gas recovery may be conservative. The company will undertake an extended production test across each of the discovered intervals in 2019 to further assess the reservoir, gas deliverability, and ultimate recovery for each zone.
A development plan will then be developed based on the results, with potential for first gas sales from Gemba by the end of 2019.
Senex was granted A$5.26 million in funding from the South Australian Government through the second round of the PACE Gas Grant Program to progress the Gemba project.
