The Scalybutt-1 well, operated by ENI Australia, completed a wireline logging program including formation pressures and samples, sidewall cores, and velocity survey and is being plugged and suspended as planned. These data confirmed the presence of hydrocarbons in the western flank of the producing Woollybutt oil field.
The well is in WA-25-L, stepping-out 1.6 km west of the Woollybutt-2A,ST1 production well, and was designed to test the presence of hydrocarbons in the western flank of the producing Woollybutt oil field. The well was spudded on Saturday, June 26, 2004.
The impact on reserves in the Woollybutt field will not be quantified until the detailed results of the core and logs are integrated into the field mapping and reservoir models. This work will be carried out over the next few weeks.
Partner Tap Oil is encouraged by the potential impact on the Woollybutt-3 oil discovery 5.5 km to the south of Scalybutt-1 and is considering drilling an additional well to appraise this southern lobe of the Woollybutt structure. The Woollybutt oil field is currently producing at around 32,000 b/d.
The suspension of the Scalybutt-1 well will allow it to be re-used in the future, if required, to access oil reserves in the western part of the field.
WA-25-L joint venture participants include:
ENI Australia (operator) - 65%
Mobil Australia Resources Co. Pty Ltd. - 20%
Tap Oil Ltd. - 15%