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Lecture 19, marine seismic surveying

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Seismic Data Processing ZGE 373 Marine Seismic Acquisition Prepared by: Dr. Amin Khalil
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Page 1: Lecture 19, marine seismic surveying

Seismic Data ProcessingZGE 373

Marine Seismic Acquisition

Prepared by: Dr. Amin Khalil

Page 2: Lecture 19, marine seismic surveying

Marine Seismic Sources: Airgun cont’d

Response from an airgun

Page 3: Lecture 19, marine seismic surveying
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Air gun array

One air gun Array of air guns

single

Arra

y

desired

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Tuning An Air Gun Array

•Summing the signal of multiple guns creates a more desirable signal•Note the relative scales of the left and right plots

From

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Example of array

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Source signature change with Depths

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Definition

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Ghosts

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Effect of water layer

M u l t i p l e s

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Main Components

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How are things actually looks like

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Hydrophone

Principle of piezoelectric effect

Voltage proportional to the variation of the pressure

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Example

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Illastration

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End

Thank you


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