Velocity Estimated from VSP and Dipole Sonic Zero-offset VSP PP data Deconvolution

VSP Composite PlotVSP Calibration

Offset VSP data with Surface Seismic Data

Z X

PP PSV

VSP Wavefield Separation

VSP data

• Zero offset VSP can be utilized for time-depth calibration, and estimation of amplitude recovery factor and Q. Offset VSP is effective for structure imaging near the well.

VSP Data Processing

Dipole

Vs

Dipole Vp

Walkaround VSP PP&PSV Circular Profile

Azimuth

IsIp

Acoustic- and Shear Impedance InversionVSPCDP Imaging based on Ray Tracing

Model BuildingAcoustic impedance Inversion

Walkaway VSP PP Data

• Walkaway VSP and walkaround VSP provides images with high quality, amenable for lithology and fluid prediction in the vicinity of the well.

Azimuth