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Abstract

The use of seismic velocities as an attribute related to hydrocarbon presence is not as common as amplitude-derived attributes (e.g. AVO) because the interpretation of interval seismic velocities depends on a range of subsurface properties such as lithology, porosity, pore pressure and fluid content. High-resolution interval velocities can be used as a seismic attribute because low velocity anomalies can be related to light hydrocarbon content. To complement the use of seismic velocities to detect hydrocarbon traps, we propose two different interval velocity-derived attributes, instantaneous acceleration and secondary velocity. Low velocity anomalies can be better delineated by using a crossplot between both attributes thereby reducing significantly the interpretation uncertainty. In this abstract we report a case study using these new attributes which suggests the presence of a reservoir of light oil or gas.

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/content/papers/10.3997/2214-4609.20148480
2012-06-04
2024-06-19
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/content/papers/10.3997/2214-4609.20148480
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