Cenkos9 Aug 2021 08:49
Amungee Testing Commences Falcon Oil & Gas has commenced production testing operations at the
Amungee NW-1H well to determine whether all 11 frack stages
contributed to an initial extended production test (EPT) conducted in
2016, or if a casing deformation after the seventh frack stage resulted in
just four frack stages contributing to the 1.1MMscf/d flow rate. Based on
an assumption that the 2016 EPT was proven to mostly come from just
four frack stages, it could be inferred that a normalised flow rate over all
eleven frack stages has the potential to be significantly higher.
? Returning to Amungee – Operations have recommenced at the Amungee NW 1H
well to determine if all frack stages contributed to the initial EPT conducted in 2016. To recap, the Amungee NW 1H well was drilled in 2015 and completed with 11 frack
stages over a 1,100m lateral in the Middle Velkerri B shale. The well was
subsequently put on a 57-day extended production test, during which time
production averaged 1.1MMscf/d. Following the success of the extended production
test, Falcon’s JV partner Origin Energy submitted a notice of discovery to the
Northern Territory Government, amounting to a gross contingent resource of 6.6Tcf
(1.46Tcf net to Falcon). The 11 frack stages were placed across a 1,100m lateral section according to the
interpretation of the reservoir and completion quality and the location of various
small faults. After the 7th frack stage, a casing deformation at 3,111.6mMDRT was
discovered (see below). After some diagnostics it was decided to shift the remaining
five stages along the wellbore to provide a greater standoff distance from the casing
deformation location. A 12th stage was attempted on the well; however, formation
breakdown was not achieved and the frac treatment was terminated early without
placing proppant. It is possible that this casing deformation prevented the final seven frack stages from
contributing to the EPT, meaning that the 1.1MMscf/d test result is reflective of only
four frack stages. Based on an assumption that the 2016 EPT was proven to mostly come from just four
frack stages, it could be inferred that a normalised flow rate over all eleven frack
stages has the potential to be significantly higher, especially when you consider that
frack stages 8-11 are only over a distance of <200m (see below), compared to the
1,100m lateral length
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