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ESCI 444-Exploration Geophysics IIReflection Seismic Data
Processing
Steve H. Danbom, Ph.D., P.G.
Adjunct Professor
Office - Room 206AOffice Hours By Appointment
Lecture Week 12
Processing seismic reflections:inter retation
Spring, 2007
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COMBINING SEISMIC AND
WELLS ON WORKSTATION
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Chart with magnetic polarity reversals, standard age
nomen-clature, fossil record, seismic stratigraphy, & eustasy
for Cenozoic
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The time-average equation is useful in seismic
interpretation.
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VSP Outline
IDENTIFY WAVEPATHS
DOWNWAVES
Measure source signature
Measure wavefront spreading loss Measure frequency and Q
lossUPWAVES
Tie time to depth
Measure seismic wavelet See ahead of bitPITFALLS
SUMMARY
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VSP Montage
Seismic(-135deg) Corridor Synth Inside
Sonic Log
Time(sec)
Depth (ft)
D a n b o m G e o p h y s i c s
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Review of the many velocity terms used in this business.
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Review of the many velocity terms used in this business.
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D a n b o m G e o p h y s i c s
Review of the many velocity terms used in this business.
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D a n b o m G e o p h y s i c s
Review of the many velocity terms used in this business.
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D a n b o m G e o p h y s i c s
Review of the many velocity terms used in this business.
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D a n b o m G e o p h y s i c s
Remember this velocity scheme for quick & dirty
interpretation.
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DONT COUNT OUT 2-D
D a n b o m G e o p h y si c s
2-D image of the plutons
near Rio de Janeiro and
close-up...
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MODELING SALT DOMES
D a n b o m G e o p h y si c s
BEFORE-STACK DEPTH
MIGRATION
Becoming commonplace in
the business is before-stack
depth migration. Here this
methodology is being used
for a Gulf-coast salt dome
image to increase accuracy
of the final interpretation.
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ITS WORTH THE EFFORT
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
From Oz Yilmaz
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D a n b o m G e o p h y s i c s
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D a n b o m G e o p h y s i c s
