Karoon Gas Australia completed the down-dip side-track drilling of the Kangaroo-2 well, offshore Brazil.
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The Olinda Star. From Karoon. |
Kangaroo-2 is located in exploration Block S-M-1165, in the Santos basin, 300m up-dip and 4km south of Kangaroo-1, where Karoon confirmed a 250m oil column in Paleocene and Maastrichtian aged reservoirs.
According to Karoon, the objective of the side-tracked well in the down-dip side-track location was to better define the resource size, recovery factors and collect valuable data in the Kangaroo field. The information gathered will be used to build the geological model and early development concepts. Side-track-1 was drilled to evaluate potential hydrocarbon accumulations in the Campanian. Five reservoir fluid samples were recovered by wireline from a 50m gross oil column in the Maastrichtian section with a net to gross of 36% and an average porosity of 24%. One sample was opened on surface and contained 3 liters of 38° API oil. No hydrocarbons were encountered in the deeper Campanian interval.
Now that the side-track-1 is complete, preparations are underway to begin side-track-2.
Karoon plans on drilling the side-track-2 into Paleocene and Maastrichtian reservoirs in an up-dip location to test reservoir and hydrocarbon potential towards the salt wall. The information gathered will be important for assessing the commerciality of the Kangaroo oil field and will be used to update the field subsurface development plan which will drive front end engineering and design (FEED).
Following the Kangaroo-2 completion, Karoon will move the Olinda Star to drill the Kangaroo West-1 exploration well to evaluate the salt-flank prospect on the western side of Kangaroo salt structure, approximately 4.5km from Kangaroo-2.
According to Karoon, the salt flank play was first proven by Kangaroo-1 with the intersection of a 76m gross oil column and oil recovered to surface from wireline DSTs.
Karoon’s exploration and appraisal drilling campaign is expected to continue through 1H 2015.
At the beginning of January, production testing on Kangaroo-2 saw flow rates reach 3700 stb/d on a choke.
In November, the company encountered oil in five separate zones in the Kangaroo-2 appraisal well.
Karoon is the operator of Block S-M-1165 with 65% interest with partner Pacific Rubiales (35%).
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