Drilling Commences at WZ 12-8W-A6P1 Appraisal Well in China's Beibu Gulf

Australia's Horizon Oil Ltd. reported Tuesday that the WZ 12-8W-A6P1 appraisal well, Beibu Gulf, China, has been spud at 21:00 hrs local time Nov. 14. The well is located in the Weizhou 12-8 Fields Area 0.9 mile (1.5 kilometers) 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 16 inch hole of the pilot well at 2,611 feet (796 meters), towards section TD (total depth) at 3,632 feet (1,107 meters). The pilot well is anticipated to take about 10 days to drill to a planned total depth of 9,678 feet (2,950 meters) and, in the event an oil column is confirmed at this location, a horizontal production sidetrack will take a further 16 days.

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