Drilling Continues at Pateke-4H Well in NZ’s Offshore Taranaki Basin


AWE Limited reported Tuesday that as at 06:00 hours (6.00am NZDT) today the Pateke-4H development well in petroleum mining permit (PEP) 38158 offshore New Zealand was at a measured depth of 12,673 feet (3,863 meters) and drilling ahead on the planned trajectory with an 8.5 inch drilling assembly after successfully side-tracking from the 9.625 inch casing at 11,768 feet (3,587 meters).

The second sidetrack (ST-2) will be drilled to a depth of approximately 13,303 feet (4,055 meters) and intersect the F10 reservoir at a horizontal angle of approximately 90 degrees. Drilling will continue through the F10 reservoir section to a planned total measured depth of 17,654 feet (5,381 meters), following which a 6.625 inch production liner will be installed.

The Kapuni F10 sandstone objective has already been intersected on prognosis with oil shows and real time logging measurements indicating the likely presence of an oil bearing reservoir. The commercial significance of the oil shows will not be clear until the horizontal drilling is completed and the reservoir size and quality is fully assessed.

The Pateke-4H development well is in PMP 38158 and AWE is the Operator. Located in the offshore Taranaki Basin, New Zealand, PMP 38158 contains the Tui, Amokura and Pateke fields and has been producing since 2007.

Pateke-4H is targeting a mapped northern extension of the currently producing Pateke field. The well is being drilled in water depth of approximately 406 feet (124 meters) with a planned total measured depth of 17,588 feet (5,381 meters), including a 4,350 feet (1,326 meters) horizontal section. If successful, the well will be completed for subsequent tie-back to the Tui FPSO (Umuroa) for production in 2015.

The Joint Venture partners in PMP 38158 are:

  • AWE Limited (via subsidiaries) (Operator): 57.5 percent
  • New Zealand Oil & Gas (via subsidiaries): 27.5 percent
  • Pan Pacific Petroleum (via subsidiaries): 15.0 percent


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