Tamboran Resources Ltd (ASX:TBN) has completed the EP 161 Tanumbirini 3H (T3H) vertical well and build section at about 3,760 metres after encountering the target Mid-Velkerri ‘B’ shale.
The EP 161 exploration permit is in the Northern Territory’s Beetaloo Sub-basin.
Tamboran will commence drilling of the ~1,000-metre horizontal section in the Mid-Velkerri ‘B’ shale target shortly with the well is anticipated to reach total depth (TD) by the end of October.
T2H and T3H wells are planned to be fracture stimulated and flow tested prior to the end of the calendar year 2021.
Reduced drilling time
Santos QNT Pty Ltd, the operator of EP 161 (75% working interest) and Tamboran (25% working interest) spudded the T3H well on August 23, 2021.
Drilling of the vertical hole and build section was completed at the target depth of about 3,760 metres after encountering the Mid-Velkerri ‘B’ shale in line with pre-drill expectations.
Notably, drilling time in the T3H vertical and build section was reduced by 20% due to learnings from T2H.
The mud gas response logged and encountered within the Mid-Velkerri ‘B’ shale in T3H is consistent with data collected in the Tanumbirini 1 and T2H wells.
Drilling of the ~1,000-metre horizontal section will commence once the 7” casing has been run and cemented and the final angle build to 90 degrees is achieved.
Forward plan
T3H is anticipated to reach TD at ~4,900 metres depth by the end of October.
After the completion of T3H, the rig will demobilise from the EP 161 location and a fracture stimulation operation will be conducted on the T2H and T3H wells.
Preliminary flow test results from both wells are anticipated to be available prior to the end of the calendar year 2021.