| 摘要 |
PCT No. PCT/GB95/02836 Sec. 371 Date Aug. 4, 1997 Sec. 102(e) Date Aug. 4, 1997 PCT Filed Dec. 6, 1995 PCT Pub. No. WO96/18117 PCT Pub. Date Jun. 13, 1996The present invention enables both deep marine seismic surveys and site seismic surveys to be performed simultaneously. A survey vessel tows a first seismic array (6, 16, 20) for a deep survey and a second seismic array (6, 16, 20) for the site survey. The arrays are operationally distinct but may share common physical components. |
