Imaging in shot-geophone space |

**Jon Claerbout**

Till now, we have limited our data processing to midpoint-offset space. We have not analyzed reflection data directly in shot-geophone space. In practice this is often satisfactory. Sometimes it is not. The principal factor that drives us away from -space into -space is lateral velocity variation . In this chapter, we will see how migration can be performed in the presence of by going to -space.

Unfortunately, this chapter has no prescription for finding , although we will see how the problem manifests itself even in apparently stratified regions. We will also see why, in practice, amplitudes are dangerous.

- TOMOGRAPY OF REFLECTION DATA
- The grand isle gas field: a classic bright spot
- Kjartansson's model for lateral variation in amplitude
- Rotten alligators
- Focusing or absorption?

- SEISMIC RECIPROCITY IN PRINCIPLE AND IN PRACTICE
- SURVEY SINKING WITH THE DSR EQUATION
- The survey-sinking concept
- Survey sinking with the double-square-root equation
- The DSR equation in shot-geophone space
- The DSR equation in midpoint-offset space

- THE MEANING OF THE DSR EQUATION

- About this document ...

2009-03-16