A series of flow tests were performed at various choke settings at the Beharra Springs Deep-1 gas discovery in licence L11 in the Perth Basin area, to enable characterisation of the well deliverability parameters.
Gas sample analysis indicates gas composition of approximately 7 per cent carbon dioxide (CO2), similar to that of Redback wells, which currently produces to the Beharra Springs facility.
Testing was performed over a 37-metre perforated interval in the Kingia Sandstone reservoir, from 3940 to 3977 metres measured depth with a tubing constrained rate of 46 million standard cubic feet per day.
This was sustained over a 225-minute interval through a 76/64-inch choke at 1855 pounds per square in gauge.
Looking ahead, the well is currently shut-in and testing equipment is being demobilised from the site and downhole gauges, to be recovered in the coming weeks.
The well will remain shut-in until it is tied to the adjacent Beharra Springs gas facility, which is expected by the end of the 2020 calendar year.
“Data obtained from well testing will be integrated with other subsurface data to enable estimation of the size of the gas resource and planning for potential follow-up appraisal drilling in the 2021 financial year,” Beach Energy stated.
“The Trieste 3D seismic survey has commenced, covering a 200 square kilometre area to the south east of Beharra Springs.”
The company expects seismic acquisition to be completed in the March 2020 quarter, covering several large prospects and leading to high grade future drilling targets.