Drilling on Jacala-1 started at 7.30 yesterday morning. The well has a planned total depth of 2322m and is expected to take about 18 days to drill and log. It is targeting a large four-way dip structure and the reservoir is interpreted to be in Barrow Sandstones at a depth of 2106m.
Jacala-1 is located on the Exmouth Sub-basin about 200km west of Barrow Island and 100km north-west of the Laverda, Vincent and Enfield field complex in roughly 1060m of water.
Jacala could hold up to 500 million barrels of recoverable oil but it is a long shot.
“Because it’s such a high-risk project, we’re going into it assuming it’s going to be dry,” Roc chief executive John Doran told EnergyReview.net recently.
“But if not, that well could be the one we’re looking for.”
WA-351-P joint venture participants are operator BHP Billiton Petroleum (North West Shelf) which holds a 55% stake, Tap (Shelfal) which owns 25% and Roc Oil (WA), which holds the remaining stake.