ORIGIN Energy is set to wrap up its BassGas Mid Life Enhancement project after production from its Yolla 5 development well was successfully tied-in to export facilities on the Yolla platform.

Adding production from Yolla 5 takes the daily production rate at the BassGas facilities to about 64 terajoules per day, project partner AWE said in an announcement.

AWE said Origin was monitoring well performance to achieve optimal co-mingling of production from Yolla 5 with that of the Yolla 6 and Yolla 4 wells.

Managing director Bruce Clement said the new wells would provide increased production capability over a longer term as well as a greater level of well redundancy.

“The joint venture is now turning its attention to the tie-in and commissioning of the gas compression and condensate pumping modules on the Yolla platform, work that is expected to take approximately 18 months to complete,” he said.

Once jack-up drilling rig West Telesto is released the development drilling phase of the project will be complete.

The BassGas project consists of the Yolla offshore well head platform, located in the Bass Strait and connected by pipeline to the gas processing facility at Lang Lang, Victoria.

AWE holds a 35 per cent stake in the T/ L1 permit where the Yolla wells were drilled.

Origin Energy holds a 42.5% stake, while Toyota Tsusho Gas and Prize Petroleum International each hold 11.25%.