Falcon Oil & Gas begin stimulation activities in Australian shale basin
(WO) – Falcon Oil & Gas Ltd. announced the commencement of stimulation activities at the Shenandoah South 1H (“SS1H”) well in EP11,7 which is operated by Falcon Oil & Gas Australia Limited’s joint venture partner, Tamboran B2 Pty Limited.
The planned program, to be conducted by Condor Energy Service, includes 10 stimulation stages within the Amungee Member B-shale over a 500-meter horizontal section of SS1H. The stimulation operation is expected to be completed in December 2023.
On completion of the stimulation campaign, production tubing will be installed ahead of expected flowback of stimulation fluid and gas breakthrough.
The stimulation program incorporates lessons learned from the joint venture’s Amungee NW-2H well in EP98 and the Tanumbirini wells in Santos operated EP161. This includes an increase in hydraulic horsepower and higher well design pressures to increase effectiveness of stimulation treatments and fluid conditioning methodologies to decrease the risk of skin damage.
Diagnostic fracture injection test (“DFIT”) results have already demonstrated an over-pressured regime at the Shenandoah South location, with a pore pressure gradient of at least 0.54 psi /ft. This is in line with results demonstrated at the Tanumbirini well (0.51 – 0.56 psi/ft), providing confidence on the ability to replicate or exceed the commercial flow rates achieved at the Tanumbirini location.
Current expectations are to release 30-day initial production (IP30) flow rates in Q1 2024, subject to weather conditions and the timing to flow back stimulation fluid to achieve gas breakthrough.
Results from the SS1H well are a key deliverable that will support the sanctioning of the joint venture’s proposed 40 MMcfd pilot project at Shenandoah South.