Projects: exploration seismology

Seismic source noise reduction

The search for oil and gas offshore usually involves letting off explosions of compressed air a metre or two below the water surface. These bangs have to be loud enough so that the echoes returning from oil and gas reservoirs (up to several kilometres below the surface) can be picked up by underwater microphones. When this is carried out close to shore, the result can be disturbance both to wildlife and to residents.

The photos show a ‘gun barge’ operating in the Dutch fenlands and airgun explosions - the source of all the noise.

CAP is carrying out ongoing research on reduction of environmental impact of seismic exploration. Contact us for more information.