New Zealand Oil & Gas Ltd. reported Tuesday it has completed an incident-free 3D seismic survey covering approximately 250 square miles (650 square kilometers) of the Clipper permit East of Oamaru in the Canterbury Basin off New Zealand's South Island.
The seismic vessel Polarcus Alima began the survey Dec. 17 towing 12 seismic streamers, each 328 feet (100 meters) apart and reaching 4.9 miles (8 kilometers) behind the vessel. The survey was completed at approximately 8.30 this morning, more than a week ahead of schedule. The terms of the Clipper exploration permit required a 3D survey to be completed by October 2014.
The survey included an extension into the Galleon permit immediately southwest of Clipper. Rights to explore in the Galleon permit were awarded to New Zealand Oil & Gas in the New Zealand Government 2013 Block Offer Dec. 6. The completed seismic survey extension satisfies New Zealand Oil & Gas's first year work obligation for this permit. (Details of the Block Offer award are at http://goo.gl/k4T1B7.)
Data from the survey will be processed overseas and then analyzed by New Zealand Oil & Gas geoscientists in Wellington. The next process of study could take one to two years.
The Clipper and Galleon permits lie in the Canterbury Basin, which is a focus for frontier, conventional oil and gas exploration. Extensive surveys were conducted in the Canterbury Basin in the 1970s and 1980s and wells were drilled by BP in 1984. Drilling by another operator is scheduled in an adjacent permit in early 2014.
A seismic survey is a method of testing the earth's physical properties using acoustic (sound) waves similar to ultrasound. Data collected is analyzed to create an image of the subsurface, which helps to determine whether prospects to drill exist and to resolve the location of any exploration well. The New Zealand Government has a description of the process on the Petroleum and Minerals website at http://is.gd/EE5thh.
The survey was conducted under the New Zealand Department of Conservation 2013 Code of Conduct For Minimizing Acoustic Disturbance to Marine Mammals From Seismic Survey Operations. Details of the Code can be found at http://goo.gl/oQLY3v.
View Full Article
WHAT DO YOU THINK?
Click on the button below to add a comment.
Generated by readers, the comments included herein do not reflect the views and opinions of Rigzone. All comments are subject to editorial review. Off-topic, inappropriate or insulting comments will be removed.
Most Popular Articles