Santos has successfully fracture stimulated the Tanumbirini 2H (T2H) and 3H (T3H) horizontal wells across 11 and 10 stages respectively within the targeted Mid-Velkerri B shale formation.
On 30 December 2021, Tamboran announced that the wells in the Beetaloo Sub-basin permit EP 161 were flowing gas to the surface following a successful fracture simulation program.
Both wells are now undergoing de-watering and undergoing cleanup activities.
“Achieving successful flow to surface from the deepest and longest successfully stimulated horizontal wells in the Beetaloo Sub-basin is an important milestone for Tamboran and our joint venture partner Santos,” Tamboran managing director and chief executive Joel Riddle said.
“Tamboran expects to announce further updates relating to the flow performance following the initial 30-days at regular intervals.”
Production data is expected to be announced after a 30-day flow test, but the estimated steady production for the wells is 3 million standard feet per day per 1,000 m horizontal length.
“As we have seen with other unconventional basins, development wells are expected to be drilled with horizontal sections of up to 3,000 m, providing increased recoveries at a significantly lower unit cost,” said Riddle.
“ Steady-state production from development wells of 3,000 m could be extrapolated linearly, with commercial potentially achieved at 9 million scfpd.”
Tamboran holds a 25 per cent non-operated interest in the T2H and T3H wells.
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