Senex Energy Gemba Tests Successful

Laxman Pai
Wednesday, December 19, 2018

Australian energy company Senex Energy has successfully tested a gas exploration well in the Cooper Basin in South Australia.

According to the Brisbane-based company The Gemba-1 well flowed 227,000 cubic metres (8 mcf) of gas per day over a period of a week.

"Senex Energy has successfully completed the initial flow test of the Gemba-1 gas exploration well in the Cooper Basin, with stabilised flow rates of approximately eight million standard cubic feet per day, plus associated liquids," said a stock exchange annoucement.

Senex Managing Director and CEO Ian Davies said: “Senex is delivering on its strategy to become a material supplier of gas to the east coast market, and this Cooper Basin gas discovery adds another potential supply source from our growing portfolio. With potential for further upside through near field exploration and a new gas play in the Dullingari group, the Cooper Basin continues to play an important role in our growth strategy.”

The Gemba-1 gas exploration well is located on the southwest margin of the Allunga Trough, close to existing infrastructure and approximately 37 kilometres south west of the Moomba processing facility.

Gemba-1 was designed to evaluate gas potential of the Patchawarra sandstones. The well was successfully drilled, cased and suspended in Q4 FY18 and intersected gas in the target zones, including in the deeper Dullingari group which represents a potential new gas play.

In November 2018, Senex successfully completed a seven-stage hydraulic fracturing program across depths of 2,360 – 2,730 metres. A seven-day flow test was subsequently undertaken from which Senex recovered 44 million standard cubic feet of gas and 88 barrels of liquids. A stabilised flow rate of ~8 million standard cubic feet per day was achieved with ~20% CO2 content.

Preliminary interpretation of volumes indicates pre-drill estimate of 15 billion cubic feet of ultimate gas recovery may be exceeded. In Q3 FY19, Senex will undertake an extended production test across each of the discovered intervals to further assess the reservoir, deliverability and ultimate recovery of each zone. A development plan will be prepared based on test results, with potential for first gas sales by end of 2019.

Results to date have been encouraging for further appraisal of the Allunga Trough, including new play potential of the Dullingari group.

Categories: Drilling Oil Well Operations Asia Operations Wells

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