The Roc Oil and CNOOC-led joint venture spudded the WZ 12-8W-A6P1 appraisal well, in Beibu Gulf, offshore China, according to parnter Horizon Oil.
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Map from Horizon Oil. |
The well is located in the Weizhou 12-8 fields area, 1.5km east of the WZ 12-10-2 discovery well, which was drilled in 2014 and found oil in the T42 sandstone.
The well objective is to evaluate the structure, sand and oil column thickness in the southeast part of the WZ 12-10-2 structure. Depending on results, a sidetrack will be drilled either at this location or towards the original discovery location WZ 12-10-2, to provide a horizontal producer which will add near term incremental production into the current WZ 6-12/12-8W utility platform, as well as determine production and reservoir performance from the WZ 12- 10-2 T42 main sand oil pool prior to full-scale field development planning in 2016. The intention is to plan for an integrated development of the WZ 12-10-1, 12-10-2, 12-8E and 12- 3 oil accumulations.
The current operation is drilling the 16in hole of the pilot well at 796m, towards section TD at 1107m. The pilot well is anticipated to take about 10 days to drill to a planned total depth of 2950m and, in the event an oil column is confirmed at this location, a horizontal production sidetrack will take a further 16 days.
ROC operates exploration and appraisal activities, while CNOOC is the operator of development and production. The joint venture includes CNOOC (51%), Roc Oil (19.6%), Horizon Oil (26.95%) and Majuko (2.45%).
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