Marine Seismic Surveys: The Search for Oil and Natural Gas Offshore

Publication #: 2016-0040

Published: NOV 2016

Pages: 2p.

Filed Under: Atlantic Canada

Marine seismic surveys use sound energy to map geological structures under the seabed. Devices use compressed air to produce pulses of high-energy, low-frequency sound waves that travel through the water and penetrate more than 6,000 metres into rock layers below the sea floor. These sound waves bounce back to the ocean surface where receivers record the strength and return time of each sound wave. From this data, maps of the geology below the seabed are developed.

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