Imaging the Morrow A Sandstone Using Shear Wave VSP Data, Postle Field, Oklahoma

Figure 7

Projection of first-arrival compressional and shear wave amplitudes for H1 component of three different geophones (channel 10, 31, and 55) and three different horizontal-vibrator source offsets (733 m, 1745 m, and 2439 m). The pattern of these maps helped us to estimate the azimuth of each geophone component in the borehole. The results of the 3C amplitude analysis, in addition to the vertical and horizontal sources hodogram analyses, improved the receiver reorientation process.