ABSTRACT

We present examples of 4D time-shifts obtained with offset and angle sub-stacks of seismic data acquired in deep (Gulf of Mexico) and shallow water (North Sea) marine environments. We compare the observations with two proposed rock-physics models using different linear relationships between the velocity change and the strain field induced by reservoir compaction. The model involving only vertical strain component predicts a similar time-shift with offset behavior as that observed from the data. We do not observe a strong decrease of time-shifts with offset as reported in previous publications.

Presentation Date: Wednesday, October 19, 2016

Start Time: 8:00:00 AM

Location: 146

Presentation Type: ORAL

Keywords:
dependence, vertical cross-section, upstream oil & gas, lower panel, compaction, top reservoir, data example, hatchell, velocity change, model 2
Subjects:
Reservoir Characterization, Seismic processing and interpretation
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2016. Society of Exploration Geophysicists
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