Each zone is being opened to flow through temporary test equipment aboard the Ensco-102 rig to provide productivity data, plus gas/condensate and oil samples for analysis and assay.
At the completion of the testing program, the well will be available for production and the Ensco 102 drilling rig will commence drilling activities for the Yolla-3 well.
Gas flows from the Upper EVCM Gas Zone equaled 32.3 million cubic feet of gas per day (mmcfgd) plus 561 barrels of condensate, while the Lower EVCM Zone flowed 27.2mmcfgd and 297 barrels of condensate.
The new Intra EVCM Oil Zone flowed at an approximately 4,000 barrels per day of 32 degree API oil accompanied by 3.4mmcfgd.
The Yolla field is located within the Tasmanian offshore production licence, T/L1 about 95km southwest of Wilson’s Promontory and 110km north of the Tasmanian coastline.
Following completion of the development drilling phase, the Ensco 102 drilling rig will be mobilised to drill the Trefoil-1 exploration well, 40km west of Yolla.
“The gas flow rates are in line with our pre-drill expectations and they mitigate one of the largest remaining risks on the BassGas project. The continuity of the producing sands appears to be good and the flow rates achieved indicate that the Yolla-4 well may be capable of delivering our initial contractual gas volumes,” said AWE’s managing director Bruce Phillips.
“The oil flow rate from the new Intra- EVCM is also an unexpected bonus that will hopefully deliver additional value for AWE’s shareholders.”
Participants in T/L 1 are AWE Petroleum 30%, Origin Energy Resources (Operator) 32.5%, CalEnergy 20%, Wandoo Petroleum 12.5%, Origin Energy Northwest 5%.
