Go to:

  previous
  next
  story

The Geophysical Corner is a regular column in the EXPLORER, produced cooperatively by the AAPG Geophysical Integration and SEG Interpretation committees, and edited by M. Ray Thomasson. This month's column is titled "VSP -- The Link Between Geology and Geophysics."

VSP Links Geology, Geophysics

By RONALD C. HINDS and RICHARD KUZMISKI

Editor's note: Hinds is a senior geophysicist for PanCanadian Resources, Calgary, Canada; Kuzmiski is responsible for VSP and acoustic log processing at Computalog, Calgary.

Click on the figure below to view greater detail.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 7. The data in (A) resulted from applying several data polarization steps to the X, Y, And Z data shown in Figure 6. The isolated upgoing event data is plotted in depth of sonde location (trace) versus two-way traveltime. In order to visualize the geology extending from the well laterally towards the source direction, the VSPCDP transformed data is computed and shown in (B). The data shows two faults and the green event truncates up against the first fault located approximately 75 meters from the well location.