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Exercise 1: P-wave Phase Velocities in VTI

Exercise 1: P-wave Phase Velocities in VTI. Excel Spreadsheet:. P-wave phase velocity in VTI media. Exercise 1: P-wave Phase Velocities in VTI. Which anisotropy parameter controls the near-vertical velocity? Which anisotropy parameter is responsible for horizontal velocity?.

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Exercise 1: P-wave Phase Velocities in VTI

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  1. Exercise 1: P-wave Phase Velocities in VTI Excel Spreadsheet: P-wave phase velocity in VTI media

  2. Exercise 1: P-wave Phase Velocities in VTI • Which anisotropy parameter controls the near-vertical velocity? • Which anisotropy parameter is responsible for horizontal velocity?

  3. Exercise 2: Ray Tracing in VTI Media Snell’s law: Excel Spreadsheet: Raypaths.xls

  4. Exercise 2: Ray Tracing in VTI Media • How would you make anisotropic ray trajectory deviate from the isotropic one towards the vertical? • What happens when the initial phase angle equals to 35°?

  5. Exercise 3: Dip Dependence of NMO Velocity Excel Spreadsheet: Dip moveout.xls

  6. Exercise 3: Dip Dependence of NMO Velocity • Which anisotropy parameter controls Vnmofor a horizontal reflector? • Which combination of anisotropy parameters controls the dip dependence of Vnmo? • Explain the DMO signature for elliptical anisotropy.

  7. Exercise 4: Correction of Nonhyperbolic Moveout Excel Spreadsheet: Nonhyperbolic moveout.xls

  8. Exercise 4: Correction of Nonhyperbolic Moveout • What controls the sign and magnitude of nonhyperbolic moveout? • What happens for elliptical anisotropy?

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