AUKLAND, New Zealand -- The 6 1/8-in. (15.6-cm) section of Kupe South 7 Sidetrack 1 (KS-7 ST1) offshore Taranaki basin in New Zealand has been drilled to a final depth of 3,503 m (11,493 ft) MD from rotary table by operator Origin Energy.
Over the last week, the abandonment of the 8 1/2 in. (21.6 cm) section of the Kupe South 7 (KS-7) well was successfully completed. The well, renamed KS-7 ST1, was directionally drilled away from the original hole from below the 9 5/8 in. (24.4 cm) casing shoe, a 7 in. (17.8-cm) liner set down to the top of the reservoir and the reservoir section redrilled.
The reservoir section now will be evaluated with wire-line logs and then a 5 in. (12.7 cm) liner will be set and cemented.
The Kupe Project drilling campaign is being undertaken on a "batch-drilling" basis. This process involves completing the same section of each of the three wells before proceeding to the subsequent section and is a more efficient approach than drilling the wells separately.
Participants in the Kupe Gas Project are Origin Energy, 50%; wholly owned subsidiary of Genesis Energy, 31%; New Zealand Oil & Gas Ltd. subsidiaries, 15%; and Mitsui E&P Australia Pty Ltd., 4%.