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Wireline logs run over the interval 2482-2509m – about 30m above the Jingemia oil field original oil-water contact – to evaluate a 27m oil column indicate that the entire Dongara Sandstone reservoir section is oil saturated in this well, VicPet said.
Reservoir pressure data indicates that this reservoir is not in pressure communication with the remainder of the Jingemia oil field.
Following the completion of wire line logging, Jingemia-8 will be cased for production as an oil development well.
“The wireline logs are very encouraging, as they confirm the strong possibility of a separate updip fault compartment in the Jingemia oil field not yet produced by the current production wells,” VicPet managing director John Kopcheff said.
“Further engineering studies and production testing are required to determine the additional recoverable oil reserves that could arise from the drilling of Jingemia-8.”
Kopcheff said he expected the completion of Jingemia-8 as a producer should boost output at the field to reach a total target rate of 4000-5000 barrels of oil per day.
Based on seismic 3D mapping and production history, the Jingemia oil field is interpreted to have the potential to contain in the range of 4-8 million barrels of recoverable oil, subject to further development drilling.
Jingemia-8 successfully intersected the Dongara Sandstone as near as possible to the structural crest of the Jingemia oil field, and updip from existing Jingemia wells.
Partners in L14 and Jingemia-8 are Origin Energy Developments (operator with a 49.189% stake), ARC Energy (44.141%), Victoria Petroleum Offshore (5%), Norwest Energy (1.278%), Roc Oil (0.25%) and J.K. Geary (0.142%).