This follows the successful completion in late 2006 of the Wilpinnie North Block farm-out agreement with the Santos-led PPL-93 joint venture.
Perth-based Impress yesterday said Wilpinnie-4 will be drilled to test a combined structural/stratigraphic trap with a closure of some 440 acres (178 hectares) spanning the PPL-93 and PEL-115 permit boundaries.
The primary target is the Jurassic Mid Namur reservoir.
The well is about 200m northwest and updip of Wilpinnie-3 drilled by Santos in 1996.
Wilpinnie-3 intersected an oil-saturated Jurassic Mid Namur Formation sandstone reservoir and on drill search test, flowed at 785 barrels of oil per day before declining to 41bopd and 20 barrels of water per day.
Impress said the Wilpinnie-4 structure has potential oil in-place of 7.5 million barrels (P50) and potential recoverable reserves of 3.5MMbbl (P50).
Interests in the Wilpinnie North Block of PPL-93 are Santos with 33%, Origin Energy (6.595%), Delhi Petroleum (10.105%), VicPet (20%), Impress Energy (20%) and Roma Petroleum (10%).
