AWE's stimulation campaign has started off on an encouraging note, with the company experiencing its first successful hydraulic stimulation in the onshore Arrowsmith-2 unconventional gas well on Sunday. Flow back from the well started on Monday.
The target for the stimulation was the tight High Cliff sandstone formation between 10,679 and 10,810 feet (3,255 and 3,295 meters).
Well partner Norwest Energy said that the well was currently flowing water and gas, with water rates declining during the day. A visible flare was evident and strengthening throughout Monday, and was stronger again early Tuesday, Norwest added.
AWE had however dropped a note of caution, stating that "it is too early in the program to draw any firm conclusions about the commercial potential of the High Cliff sandstone being evaluated."
AWE's planned stimulation campaign will incorporate activity at three onshore wells in the Perth Basin; Arrowsmith-2, Woodada Deep-1 and Senecio-2. Five zones are planned for testing at Arrowsmith, while Woodada Deep and Senecio will see three zones and one zone tested respectively.
"The whole stimulation campaign – for Arrowsmith, Woodada and Senecio –could be completed in six to eight weeks," a spokesperson with AWE told Rigzone through a telephone interview on Tuesday.
AWE has a 44.252 percent stake in Arrowsmith-2, while Norwest Energy is the operator and owns 27.945 percent stake. Bharat Resources owns the remaining 27.803 percent stake. Woodada Deep-1 is fully-owned by AWE. AWE and Origin have equal stakes in Senecio-2.
AWE and Norwest are listed in Australia, while Bharat Resources is an Indian stated-owned company.
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