Vol. 2, 2014
A Stark Difference
These seismic compressors deliver a lot of power and air in a light, compact package
In the hunt for oil and gas deep below the ocean's surface, seismologists use specialized air guns that send sound-wave pulses deep into the water to get a reading of what lies below.
Seismic air guns are submerged below the water surface and towed behind a boat or ship. Each gun consists of one or more pneumatic chambers that are pressurized with compressed air. Receivers such as geophones or hydrophones record the sound waves as they bounce off subsurface formations at distances as far as 15 kilometers (10 miles) deep.
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