The last well BS-4 was in 2007 & TD'd at 3338m. This was drilled 'underbalanced' with Nitrogen Brine mix using a Coil Tubing Unit to compensate for the tight nature of the WS. Due to this underbalance drilling, it flowed 35 mmcfd gas thro' the blooie line.
BS Nth1 tested 25m of the WS from 3370-3395m at 30 mmcfd in 2001. TD 3450m
BS Sth-1 had water bearing sands in the WS back in 2001 & a DST in the Kockatea shale flwd 4 bopd condensate. TD: 3471m
Earlier 3 wells at BS were drilled in 1991-'93.
Ann: West Erregulla 2 Update - Initial Wagina Gas, page-98
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