Location / Proposed Depth
The Zola-1 well is located in permit WA-290-P, immediately south of the giant Gorgon gas field in the Carnarvon Basin, Western Australia. The well is being drilled in 285 metres of water and the primary Mungaroo Formation target will be intersected at approximately 4,300 metres below sea level. Further secondary targets will see the well drilled to a target depth of 5,000 metres.
Progress
During the period from 06:00 hours WST on 22 December 2010 to 06:00 hours WST on 29 December, 406mm (16”) hole was drilled to a total depth of 3,524metres and casing was run and cemented.
Forward Plan
Pressure test casing and drill ahead in 311mm (121/4”) hole to the second intermediate casing point at circa 3,976 metres, where 244mm (9 5/8”) casing will be run and cemented in the hole.
Zola-1 is now expected reach target depth in approximately 22 days. Upon completion of evaluation the well will be plugged and abandoned in the normal course of offshore operations.
Source: Press release
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