1887

Abstract

Summary

4D AVO remains a rarely-used tool. Why is that? Conventional wisdom is that the majority of 4D effects occurring in the reservoir are already detectable and interpretable using acoustic amplitude differences and/or time shift information. We present 2 ways that we can access pre-stack 4D information: one very simple method, that helps us determine if application of a full elastic 4D inversion workflow is a worthwhile exercise; and an elastic extension to joint 4D seismic inversion. A real data example illustrates the potential added value of such an approach, where we separate changes in pressure and saturation effects at a water injection well.

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/content/papers/10.3997/2214-4609.202112857
2021-10-18
2024-04-28
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References

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