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.