Basic Seismic Processing
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Transcript of Basic Seismic Processing
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Basic Seismic ProcessingBasic Seismic ProcessingINPUT
FILTER
CMP Gather
NMO
STACK
MIGRATE
DISPLAY
GEOM
VEL ANAL
STATICS
MUTE
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More Seismic ProcessingMore Seismic Processing
INPUT
BP FILTER CMP Gather
NMO
STACK
MIGRATE
DISPLAY
GEOM
VEL ANAL
STATICSDEMUX
VIB CORR
FK FILTER
DECONDMO/
MIGRATE
SAVE
DECON
FK FILTER
MUTE
GAIN RCVR
COHERENCYENHANCE
COHERENCYENHANCE
TIMETO
DEPTH
EDIT
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SP to CMP GatherSP to CMP Gather
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SP to CMP GatherSP to CMP Gather
Shot Gathers
CMP Gathers
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GathersGathers
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NMONMO
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NMONMO
Original Too Slow Too FastJust Right
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NMO Layered MediumNMO Layered Medium
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NMO StretchNMO Stretch
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RMS VelocityRMS Velocity
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NMO vs dipNMO vs dip
Flat Slow Flat Fast Dip Slow
V = V0/cos
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Estimating VEstimating Vstackstack
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Estimating VEstimating Vstackstack
Velocity Spectra
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Estimating VEstimating Vstackstack
Constant Velocity Gathers (CMP)
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Estimating VEstimating Vstackstack
Constant Velocity Stacks
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NMO and NoiseNMO and Noise
Decreasing S/N
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Velocity SpectraVelocity Spectra
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Horizon Velocity AnalysisHorizon Velocity Analysis
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Velocity EstimatesVelocity EstimatesCMP No.
Tim
e, s
ec
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MutingMuting
CMP NMO NMO+Mute
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StaticsStatics
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StaticsStatics
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StaticsStatics
Before
After
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StackStack