Santos confirms discovery in Browse basin offshore Australia
The Lasseter-1 exploration well offshore Western Australia in Browse basin has discovered gas and condensate.
ADELAIDE, Australia –The Lasseter-1 exploration well offshore Western Australia in Browse basin has discovered gas and condensate.
The well found a gross gas/condensate interval of 405 m (1,238 ft) and wireline logs confirm 78 m (256 ft) of net pay in Jurassic Lower Vulcan and Plover intervals between 4,880 and 5,285 m (16,006 and 17,335 ft) measured from below the rotary table.
TD of the well is 5,329 m (17,479 ft) MDRT 480 km (298 mi) north/northeast of Broome in 404 m (1,325 ft) of water.
The samples confirm good mobility in the higher porosity sands in the Lower Vulcan, says Santos. Multiple independent hydrocarbon columns are interpreted, including an estimated 250 m (820 ft) column for the Lower Vulcan reservoirs.
Multiple hydrocarbon samples have been recovered and the initial analysis confirms a condensate to gas ratio in the range of 10-25 bbls/MMscf and inerts consistent with proximal field gas compositions and pre-drill expectations.
The well will now be P&A’d as planned.
Santos holds a 30% interest inWA-274-P and is the operator. Joint venture partners are Chevron (50%) and INPEX (20%).