WesternGeco has completed acquisition of a Q-Marine seismic survey for the Danish Oil and Natural Gas Co. (DONG) over the Siri field in the North Sea.

The 128-sq-km, high-resolution Q survey was acquired in May over a 1996 heritage survey and will include 4D processing of the vintage data.

"WesternGeco Q-Technology was selected for this monitor survey because of the high activity level in the area where the increased spatial Q-marine sampling could enhance noise reduction," Jesper Wissendorf Hansen, operations geophysicist, DONG E&P A/S, said. "Furthermore, the steerable streamers added a safety element to the work around the installations in the area, in addition to the advantage of steering the feather."

The survey was conducted in two phases. First, the Q-Technology vesselWestern Pride, towing six 3,200-m cables with 100-m separation, repeated the 1996 survey. An interleaved pass then increased data density and will be used for enhanced imaging.

06/08/04