Senex Energy completes initial flow test of Gemba-1, in the Cooper basin


BRISBANE -- Senex Energy Ltd. has successfully completed the initial flow test of the Gemba-1 gas exploration well in the Cooper basin, with stabilized flow rates of approximately 8 MMscfd, plus associated liquids.

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 (PEL 516: Senex 100% and operator) is located on the southwest margin of the Allunga Trough, close to existing infrastructure and approximately 37 km southwest 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 fourth-quarter 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 m. A seven-day flow test was subsequently undertaken from which Senex recovered 44 MMscfg and 88 bbl of liquids. A stabilized flow rate of ~8 MMscfd was achieved with ~20% CO2 content.

Preliminary interpretation of volumes indicates pre-drill estimate of 15 Bcf of ultimate gas recovery may be exceeded. In third-quarter 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.

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