Karoon Gas Australia’s Kangaroo-2 confirmed more pay at the second sidetrack well in the shallow offshore waters of Brazil.
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Map of the Santos basin. From Karoon. |
Kangaroo-2 is located in exploration Block S-M-1165 in the Santos basin, about 300m up-dip and 4km south of Kangaroo-1.
The second sidetrack confirmed a 250m gross oil column in the Paleocene and Maastrichtian aged reservoirs.
Karoon says that the Kangaroo-2 down-dip sidetrack was drilled to a depth of 2745m. Five reservoir fluid samples were recovered by wireline from a 37m gross oil column with a net to gross of 60% and an average porosity of 27%. One sample was opened on the surface and contained 2.9 litres of 39° API oil.
According to partner Pacific Rubiales, two separate extended production tests in the Kangaroo-2 appraisal wellbore flowed 31° to 38° API light oil at maximum rates of between 2500 b/d and 3700 b/d, with stabilized rates of 1,820 bbl/d 3,450 bbl/d, respectively.
“With the first appraisal and sidetrack program at Kangaroo-2 complete, the joint venture has taken a significant step forward in understanding the field. Well data indicates a number of separate accumulations make up the field, and there is no significant gas cap as originally prognosed,” says Robert Hosking, Karoon managing director. “These wells have proven a play type with potentially hundreds of millions of barrels trapped in place in the Kangaroo oil field (recovery factor to be determined). Follow-up drilling of this same play will commence over the coming days immediately to the west at Kangaroo West-1.”
The Olinda Star drilling rig will move to begin drilling the Kangaroo West-1 exploration well to evaluate the salt-flank prospect on the western side of Kangaroo salt structure.
In late January, Karoon completed drilling at the down-dip sidetrack of Kangaroo-2. Karoon’s exploration and appraisal drilling campaign is expected to continue through 1H 2015.
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