Background

In petroleum geophysics, one geological event can be imaged with multiple data types. For instance, the top of a reservoir can be mapped with multiple seismic surveys and multiple well log runs. Inversion can be used to create a single model of the top of the reservoir to satisfy these diverse data. The Madagascar data set can be viewed as a similar problem. Figure illustrates this point on only the densely sampled data. The Madagascar data can be imaged by taking the derivative along the tracks and binned. The derivative along both the ascending tracks and the descending tracks individually provides an image of the ridge. Combining both data sets to create one model of the ridge can be achieved with inversion.

 

updwnder1
Figure 2 Dense data: ascending (top) and descending (bottom) tracks with gradient