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Method for segregating and stacking vertical seismic profile data in common reflection point bins

Patent ·
OSTI ID:6060586
A method is described for segregating and stacking offset vertical seismic profile data obtained from a seismic receiver located in a wellbore into common reflection point bins comprising the steps of: providing curves of constant, moveout corrected two-way reflector travel times from predetermined travel time data depending on receiver depth and source offset; dividing the offset distance of the shot location to the borehole into a predetermined number of equal common reflection point bins having boundaries; selecting a geophone depth and the corresponding normal incidence two-way travel time to this depth; sectioning two-way reflector travel time defined by the intersection of the common reflection point bin boundaries and the two-way travel time to the geophone depth crossing curves of constant two-way moveout corrected reflector travel times into two-way travel time segments; and stacking the sectioned two-way travel time segments at the center of the common reflection point bins with weights appropriate to fold.
Assignee:
Mobil Oil Corp., New York, NY
Patent Number(s):
US 4802147
OSTI ID:
6060586
Country of Publication:
United States
Language:
English