Seismic data hydrocarbon indicator

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

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367 21, 367 47, 367 70, 364421, G01V 136, G01V 134

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active

054405254

ABSTRACT:
A method for displaying seismic data to provide direct indications of the presence of hydrocarbons. Seismic data is processed using conventional amplitude versus offset techniques to obtain zero offset reflectivity, or A, traces and the amplitude versus offset slope, or B, traces. AB cross plots of each trace are then generated. Each sample point on the cross plot is then assigned a value corresponding to its deviation from the regression line of the cross plotted AB points. The assigned values are then plotted in their corresponding time sample positions to generate a trace or display providing a direct indication of hydrocarbons.

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