Drilling continues at Karoon Gas Australia’s Kanagroo-2 in the 12 ¼ in. hole section at a current depth of 1760m.
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The Olinda Star. From Karoon. |
The Kangaroo-2 appraisal well is located in approximately 300m updip from Kangaroo-1 in Block S-M-1165.
It is the first well in the current Santos basin exploration and appraisal drilling campaign and will test the thick reservoir sequence observed in all surrounding wells. Karoon is targeting a 350m plus gross hydrocarbon column in this well.
The well is designed to confirm size of the oil column, the presence and size of a possible gas cap, reservoir continuity and properties, and flow rates for the Kangaroo oil discovery. This information will be crucial for assessing the commerciality of the Kangaroo oil field and, upon success, will be the basis for the front end engineering and design (FEED) phase bringing the project a step closer to commerciality.
Kangaroo-2 penetrated the target Paleocene reservoir at 1660m as indicated by increased logging while drilling resistivity readings, elevated gas readings and oil shows seen in mud log cuttings from the reservoir section consistent with reservoir descriptions from Kangaroo-1.
Drilling will continue using the Olinda Star semisubmersible drilling rig to total depth before running wireline logging designed to confirm the presence and extent of the hydrocarbon column. Coring and flow testing is expected to be undertaken upon a successful outcome from wireline logging.
Since 14 November 2014 progress report, blowout preventer (BOP) and equipment testing was completed, the cement shoe drilled out and drilling in the 12-1/4 in. hole section commenced.
Karoon is the operator of S-M-1165 and holds a 65% interest with partner Pacific Rubiales Energy Corp. (35%).
The exploration and appraisal drilling campaign, operated by Karoon, plans to use the Olinda Star semisubmersible drilling rig for the entire campaign, which is expected to continue through 1H 2015.
The rig contract provides Karoon with two firm wells plus two option wells, providing maximum flexibility for further appraisal of the Kangaroo oil discovery, including testing and appraisal of the Kangaroo West prospect in the event of a successful drilling in the first two wells.
The second well in the program is the Kangaroo West-1 exploration well, targeting a net un-risked prospective resource of 330MMbbls. Due to the large size and proximity to Kangaroo, a successful outcome at Kangaroo West-1 would materially add to any possible development of the Kangaroo oil field.
The play type for Kangaroo West-1 is proven at Kangaroo-1 with the intersection of a 76m gross oil column and oil recovered to surface from wireline DSTs. Kangaroo West-1 is located on the western flank of the same salt structure as Kangaroo-1 and has the same trap type and reservoir and seal intervals that have been mapped into the prospect from surrounding wells.
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