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
FIGURE 8C: TSUNAMI ADAPTIVE FILTERING FIGURE 8D: D IFFERENCE BETWEEN 8A AND 8C
RAISING QUALITY OF RTM MIGRATIONS
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
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.
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.
MORE EXAMPLES
FOOTHILLS DATASET SHOWING RTM RESULT IMAGED FROM FLOATING DATUM
MARMOUSI DATA WITH REVERSE TIME MIGRATION
SIGSBEE MODEL SHOWING THE RESULTS WITH KIRCHHOFF MIGRATION (TOP) AND THEN RTM (BOTTOM). DATA COURTESY OF SMAART JV.