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1999 RESEARCH UTAM ACCOMPLISHMENTS

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- Migration Deconvolution of 3D Prestack Data Shows Noticeable
Improvement in Resolution and Artifact Reduction for Some Data.
- IMPLICATION: Acquisition Footprint can be Partly Suppressed in Prestack Data.
- PROBLEMS: Some Reflectors Lose Strength. Some Instability in W. Texas Example.

- DMO Deconvolution Developed and Applied to Data.
- IMPLICATION: Acquisition Footprint can be Partly Suppressed in DMO Images.
- PROBLEMS: Not Enough Data Tested.

- 3-D Wavepath Migration Shows Significant Speedup in CPU Time Compared
to Kirchhoff Migration.
- IMPLICATIONS: 3-D Integral Prestack Migration in 1/10 or Less Cost!
- Fast Velocity Analysis Method.
- PROBLEMS: Sensitivity to Incidence Angle Estimation.

- Seismic Interferometry
- IMPLICATION: Mitigation of source and receiver statics.
- PROBLEM: Not enough data examples, incomplete understanding of
limitations and benefits.

- Extensive Synthetic Tests Suggest Salt Bodies and Ore Bodies can be Imaged by PS Transmission
Waves.
- IMPLICATION: Single Well Imaging of Salt Flanks Realistic?
- Ore Body Imaging with Crosswell Experiments.
- PROBLEMS: Not Enough Data Tests.

- Reduced-Time Migration.
- IMPLICATION: More Accurate Migration Images in Presence of Velocity Errors.
- PROBLEMS: Not Enough Data Tests.

- Development of Adaptive Reverse-Time Migration.
- IMPLICATION: For some Velocity Models, an Order-of-Magnitude Reduction in
Computation Time relative to Standard Reverse-Time Migration.
- Image Both Primaries and Multiples Simultaneously.

- Time-to-Depth Conversion by Velocity Continuation.
- IMPLICATION: Better Time Migrated Sections.
- PROBLEMS: Theory Only, No Numerical Tests.

- Multicomponent Data Processing.
- IMPLICATION: Better Quality Migration Images.
- PROBLEMS: Not Enough Data Tests.

- True Amplitude Remigration by Stationary-Phase Migration.
- IMPLICATION: Improved AVO Method.
- PROBLEMS: Not Enough Data Tests.

- Model Resolution for Traveltime Tomograms.
- IMPLICATION: Resolution Estimates for Smooth Velocity Models and
Finite-Band Data.