Lecture 20, marine surveying 2

Post on 15-Apr-2017

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Seismic Data ProcessingZGE 373

Marine Seismic Acquisition

2

Prepared by: Dr. Amin Khalil

solution

Illastration

The vessel

Other marine sources

1- Waterguns similar to airgun but the air is replaced with water

2- Marine vibrator Hyraulic or electric power system using plate immersed in the sea water. It makes sweep of frequency say from 10-80 Hz over 10 s intervals

Other Marine seismic technique

1- Sea bed recording system Uses OBS (Ocean Bottom Seismometers) attached to OBC (ocean bottom cable).