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Falcon Oil & Gas Ltd. has announced the start of stimulation activities at the Shenandoah South 1H (SS1H) well in EP 117 in the Beetaloo Basin, in Australia’s Northern Territory.
The well is operated by Falcon Oil & Gas Australia Limited’s joint venture partner, Tamboran B2 Pty Ltd.
According to a company media statement, the planned program, to be conducted by Condor Energy Service, includes 10 stimulation stages within the Amungee Member B-shale over a 500-metre horizontal section of SS1H. The stimulation operation is expected to be completed in December 2023.
Upon the completion of the stimulation campaign, production tubing will be installed ahead of the expected flowback of stimulation fluid and gas breakthrough, the company said.
“We look forward to this phase of operations in the Beetaloo with the stimulation and extended production testing of SS1H with the planned program incorporating the lessons from previous programs including Amungee NW-2H and with the DFIT [diagnostic fracture injection test] results providing confidence on the ability to achieve commercial flow rates. We will continue to update the market as results become available”, Philip O’Quigley, CEO of Falcon, said.
The stimulation program incorporates lessons from the joint venture’s Amungee NW-2H well in EP98 and the Tanumbirini wells in Santos-operated EP 161, Falcon said. These include an increase in hydraulic horsepower and higher well design pressures to increase the effectiveness of stimulation treatments and fluid conditioning methodologies to decrease the risk of skin damage.
According to Falcon, 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 in the ability to replicate or exceed the commercial flow rates achieved at the Tanumbirini location.
The company said it expects to release 30-day initial production flow rates in the first quarter of 2024, subject to weather conditions and the timing to flow back stimulation fluid to achieve gas breakthrough.
Falcon also noted that the results from the SS1H well are a key deliverable that will support the sanctioning of the joint venture’s proposed 40 million cubic feet per day pilot project at Shenandoah South.
To contact the author, email andreson.n.paul@gmail.com
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