Seismic Stack Velocity Calculator

Invert the normal-moveout hyperbola t(x)^2 = t0^2 + x^2/Vstk^2 for the stacking velocity in meters per second, given a zero-offset time in seconds and an observed arrival time in seconds at a source-receiver offset in meters.

Description

Invert the normal-moveout hyperbola t(x)^2 = t0^2 + x^2/Vstk^2 for the stacking velocity in meters per second, given a zero-offset time in seconds and an observed arrival time in seconds at a source-receiver offset in meters.

Seismic Stack Velocity Calculator: Invert the normal-moveout hyperbola t(x)^2 = t0^2 + x^2/Vstk^2 for the stacking velocity in meters per second, given a zero-offset time in seconds and an observed arrival time in seconds at a source-receiver offset in meters.

When to use Seismic Stack Velocity

Use this geological calculation for a transparent first-pass interpretation of measured rock, soil, fluid, well, stratigraphic, isotopic, geophysical, or seismic data under an explicitly selected model.

t0
Zero-offset two-way time t0 in seconds.
x
Source-receiver offset x in meters.
t(x)
Observed arrival time t(x) at that offset in seconds.

How Seismic Stack Velocity works

Invert the normal-moveout hyperbola t(x)^2 = t0^2 + x^2/Vstk^2 for the stacking velocity in meters per second, given a zero-offset time in seconds and an observed arrival time in seconds at a source-receiver offset in meters. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.1

V stk
Stacking velocity in meters per second.

Limitations and assumptions

  • Seismic magnitudes, moments, travel times, velocities, resolution, and energy depend on instrument correction, Earth model, phase picking, geometry, attenuation, radiation pattern, bandwidth, and calibration range. Magnitude scales are not universally interchangeable.
  • Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Alternative or Complementary approaches

Compare independent measurements and models, retain units and analytical metadata, propagate uncertainty, and validate interpretations against logs, cores, maps, laboratory data, or field observations.

References

  1. Seismology — Wikipedia contributors

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