RTM: THE TSUNAMI ADVANTAGE - CDM Media · 3d tti south american land data: example 1 tsunami...
Transcript of RTM: THE TSUNAMI ADVANTAGE - CDM Media · 3d tti south american land data: example 1 tsunami...
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RTM: THE TSUNAMI ADVANTAGE
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TSUNAMI IMPLEMENTATION MEANS EASE OF USE
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CPU/GPU SUPPORT- FUTURE DEVICES
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FIGURE 3: GPU/CPU COMPARISON, GPU REFERS TO NV IDIA KEPLER K10; CPU REFERS TO ONE 12-CORE E5 NODE
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IMPULSE RESPONSE AND ILLUMINATION SCALING
FIGURE 1: RAW RTM RESULT (LEFT) AND RTM WITH CORRECTED SCALING (RIGHT)
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FIGURE 2: SHOWS AN EXAMPLE OF A CORRECTLY SCALED , MIGRATED SHOT.
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OFFSET GATHERS
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FIGURE 4: 3D OFFSET GATHERS
FIGURE 5: 2D OFFSET GATHERS WITH CORRECT VELOCITIES (LEFT) AND VELOCITY SLOWED BY 3% (RIGHT)
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ANISOTROPY SUPPORT
P e r f o r m a n c e
S t a b i l i t y
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FIGURE 6: STABILITY IMPLEMENTATION
FIGURE 7: STABILITY COMPARISONS
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FILTERING OF BACKSCATTER NOISE
FIGURE 8A: UNFILTERED IMAGE
FIGURE 8B: TYPICAL RTM FILTERING
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FIGURE 8C: TSUNAMI ADAPTIVE FILTERING FIGURE 8D: D IFFERENCE BETWEEN 8A AND 8C
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RAISING QUALITY OF RTM MIGRATIONS
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FIGURE 9A: K IRCHHOFF MIGRATION OF 3D LAND DATASET. MAX FREQUENCY OF 40 HZ
FIGURE 9B: RTM M IGRATION OF 3D LAND DATASET. MAX FREQUENCY OF 40 HZ
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3D TTI SOUTH AMERICAN LAND DATA: EXAMPLE 1
TSUNAMI K IRCHHOFF M IGRATION RESULT
TSUNAMI RTM RESULT
THIS EXAMPLE SHOWS TH E TSUNAMI RTM ON 3D LAND DATA RUNNING A TTI MIGRATION. THE MODEL BUILDING
AND NOISE SUPPRESSION WAS DONE BY THRUST BELT IMAGING.
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3D TTI SOUTH AMERICAN LAND DATA : EXAMPLE 2
TSUNAMI K IRCHHOFF M IGRATION RESULT
TSUNAMI RTM RESULT
THIS EXAMPLE SHOWS TH E TSUNAMI RTM ON 3D LAND DATA RUNNING A TTI MIGRATION. THE MODEL BUILDING
AND NOISE SUPPRESSION WAS DONE BY THRUST BELT IMAGING.
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MORE EXAMPLES
FOOTHILLS DATASET SHOWING RTM RESULT IMAGED FROM FLOATING DATUM
MARMOUSI DATA WITH REVERSE TIME MIGRATION
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SIGSBEE MODEL SHOWING THE RESULTS WITH KIRCHHOFF MIGRATION (TOP) AND THEN RTM (BOTTOM). DATA COURTESY OF SMAART JV.
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