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Wednesday, 07 January, 2009, 21:10 GMT | more >>

Apache scores big at Julimar East



By Upstream staff 

Apache Corporation has boosted its reserves at Australia's North West Shelf, with the Julimar East-1 appraisal probe hitting 70% more net pay than the original Julimar-1 discovery well.

The US player said Julimar East-1 logged 224 feet of net gas pay in six sandstone reservoirs of the Triassic Mungaroo formation.

Julimar East-1 was drilled about six kilometres north-east of the Julimar-1 discovery, which hit 132 feet of net gas in four zones.

Production tests on two zones in the discovery well flowed at a combined rate of 85 million cubic feet per day, precluding the need for further testing of the Julimar East-1.

Three of the six pay zones in Julimar East-1 are stratigraphically equivalent to gas bearing reservoirs in the Julimar-1 well. The well will be suspended as a future production well.

"With 70 percent more net pay than the initial discovery, the Julimar East-1 well strengthens our belief that the ultimate recoverable reserves in the Julimar complex could exceed 1 trillion cubic feet," Apache boss Steven Farris said.

The Sedco 703 rig used to drill the Julimar East-1 will next drill Rosella, another 1 Tcf-potential gas prospect located about six kilometres south-west of the John Brookes Field, which currently is producing 250 MMcfd of gas from three wells.

The Julimar complex lies in Block WA356P, in which Apache holds a 65% stake.

The latest well was drilled to a total vertical depth of 13,517 feet in 561 feet of water about 140 kilometres off the Australian coast.

Two further exploratory wells - Brunello-1 and Julimar Northwest-1 - will be drilled this year to further appraise the Julimar complex.

The Julimar complex is on trend with other significant Mungaroo fields, including the West Tryal Rocks, Pluto and Gorgon fields.


Tuesday, 17 July, 2007, 13:31 GMT  | last updated: Wednesday, 18 July, 2007, 02:47 GMT

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