Donga-4 drilling report, ATP 805P, Surat Basin
Posted: 7 December 2006
Victoria Petroleum NL has been advised by Bow Energy Limited (Bow) operator for the Donga-4 oil appraisal well located in the Donga Oil Field in ATP 805P in the Surat-Bowen Basin, Queensland that at 0600 hours Eastern Standard Time today the operation was drilling ahead at 926 metres in 8 ½ inch hole.
The 12 day well that commenced drilling on 1 December 2006 is targeting the Triassic aged basal Moolayember sandstone (Donga sandstone) which was productive at Donga-3.
If Donga-4 is successful, the rig will immediately move to drill the Donga-5 appraisal well location 0.55 kilometres north of Donga-4.
Donga-3, drilled in October 2005, recovered 23 barrels of light oil and 39 barrels of formation water from the Donga sandstone on test.
Near the end of an extended production test earlier this year, Donga-3 was flowing about 50 barrels of fluid per day with 25% oil cut and is interpreted to have intersected the oil-water contact of the field.
The Donga-4 appraisal well location is offset about 1 kilometre southwest of Donga-3 and Donga-5 is offset about 0.75 kilometres west of Donga-3.
The wells are interpreted to intersect the Donga sandstone 10 to 15 metres up dip from Donga-3 at a depth of approximately 1,570 metres KB.
Bow’s recent assessment of the field suggests it has the potential to contain 2.2 to 5 million barrels of oil with oil recovery contingent on adequate water drive.
The interests in ATP 805P are:
- Victoria Petroleum 15%
- Bow Energy 85% (Operator)
Posted by Richard Price, Editor, EnergyME.com
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