the earth’s near surface as a vibroseis signal generator
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The Earth’s Near Surface as a Vibroseis Signal Generator. Zhiyong Jiang. University of Utah. Outline. Introduction Methodology Synthetic Data Test Conclusions. Motivation: in Indonesia gas hydrates blur the reflections. g. s. s’. x. Outline. Introduction Methodology - PowerPoint PPT PresentationTRANSCRIPT
The Earth’s Near Surface as The Earth’s Near Surface as a Vibroseis Signal Generatora Vibroseis Signal Generator
Zhiyong JiangZhiyong Jiang
University of UtahUniversity of Utah
OutlineOutline
• IntroductionIntroduction• MethodologyMethodology• Synthetic Data TestSynthetic Data Test• ConclusionsConclusions
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Pilot signalPilot signalVibroseis traceVibroseis trace
OutlineOutline
• IntroductionIntroduction• MethodologyMethodology• Synthetic Data TestSynthetic Data Test• ConclusionsConclusions
Velocity ModelVelocity Model
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OutlineOutline
• IntroductionIntroduction• MethodologyMethodology• Synthetic Data TestSynthetic Data Test• ConclusionsConclusions
ConclusionConclusion
• Free surface points can be regarded as Free surface points can be regarded as vibroseis signal generator, and direct waves, vibroseis signal generator, and direct waves, primary reflections, multiple reflections can primary reflections, multiple reflections can be regarded as the pilot signal, the response be regarded as the pilot signal, the response can be thought of as vibroseis tracecan be thought of as vibroseis trace
• With EAV, a ringy trace can be compressed With EAV, a ringy trace can be compressed into an impulsive primary reflectioninto an impulsive primary reflection
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Pilot Pilot signalsignal
vibroseis vibroseis tracetrace
Future work: use EAV to deblur the scattering due Future work: use EAV to deblur the scattering due to gas hydrates near the sea floor to gas hydrates near the sea floor
We thank UTAM sponsors for their We thank UTAM sponsors for their financial supportfinancial support
AcknowledgmentsAcknowledgments