3D 3C P-S Converted Wave Imaging

Advanced 3C technology specific to P-S converted wave Processing & Imaging workflows. Divestco provides inhouse innovative research and development including alignment H1 3C orientation (H1ORIENT), P-S 3C Vector Scaling, 3C Vector Deconvolution, and P-S 3C Migration algorithms. Local expertise allows for client specific solutions to 3C processing challenges.

• Complete 3D 3C processing tools developed at Divestco
• P-S statics solutions
• Shear Wave Splitting analysis
  (Overburden, and subsurface layer stripping analysis of radial and transverse components)
• Alignment of H1 Orientation (H1ORIENT)
  H1ORIENT is a robust process designed to automatically resolve the HOR of H1/H2 without the benefit of knowing Field Orientation and Magnetic Declination values. This method doesn’t make any assumptions from the field and determines rotation of each receiver by using a data driven approach.
• Automated shear wave receiver statics
• 3C Vector Scaling, Radial and Transverse
• 3C Vector Deconvolution, Radial and Transverse
• 3C – 6D Interpolation (SPRINT6D-3C)
• 3D P-S Migration (Kirchhoff, shot profile WEM)

Shot profile P-S WEM impulse response

Nonzero offset impulse responses of the 3D shot profile WEM of P-S converted waves. The red picks show the CCP at the bottom of the migration ellipses. The blue arrow shows the downward going P-wave of the source and green arrow upward going converted S-wave to the receiver. The asymmetric amplitude response is natural to converted wave shot profile migration. (Ng, 2014, GeoConvention)

P-S WEM time slices

Time slice pairs of the final stack of P-Sv converted wave without interpolation: (A) Post CCP stack WEM, and (B) prestack shot profile WEM.