BassGas Project

Permit: T/L1 Yolla (AWE 35%)

Location: Bass Basin, South Eastern Australia

Current status: Production, Development

Bass Basin
AWE has a 35% interest in the Origin Energy operated BassGas project that produces gas, condensate and LPG from the offshore Yolla field located in Bass Strait between Victoria and Tasmania. Product is conveyed via pipeline from the Yolla platform to a gas processing facility at Lang Lang in Victoria.

The BassGas Mid-Life Enhancement (MLE) project, designed to fully develop the field and to ensure that production continues well into the next decade, is nearing completion.

The BassGas MLE commenced in 2011, with the Phase 1a installation of an accomodation module completed by the Operator of the BassGas project, Origin Energy, in 2013.

During 2014-15, gas compression and condensate pumping modules were successfully lifted onto the Yolla platform and two new production wells were drilled, Yolla-5 and Yolla-6. In August 2015, production from the two new wells was co-mingled with the existing Yolla-4 well and production regularly exceeded 60 TJ/day gross.

The focus now is Stage 3, the hookup and commissioning of the gas compression and condensate pumping modules on the Yolla platform. While not yet needed, gas compression on the platform will be important to recovering the remaining 2P Reserves.

Future development:

A number of future expansion opportunities exist in the Bass Basin with retention leases held for the Trefoil, Rockhopper, White Ibis and Bass discoveries located near the producing Yolla field. AWE holds a 40% interest in these leases which are operated by Origin Energy. With a similar gas/liquids mix to the Yolla field, the Trefoil field (17mmboe 2C Resources net to AWE) could potentially be tied back to the Yolla platform and utilise the existing BassGas onshore facilities.

Further information:


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