Method of seismic surveying

Details Method of seismic surveying Method of seismic surveying

2008-05-20

2008-05-20

Keith, Jack (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C367S039000, C367S040000

Reexamination Certificate

active

11548521

ABSTRACT:
The present invention provides a seismic surveying method in which vibrators in a first vibrator group are actuated at time T0and vibrators in a second vibrator group are actuated at time T1,where T0<T1<T0+S1+L and S1is the sweep time of the first group and L is the listening time. This method enables the time required to complete a seismic survey to be reduced. In other embodiments, vibrators in the first vibrator group may be actuated at time T2,where T1<T2<T1+S2+L and S2is the sweep time of the first group, and vibrators in the second vibrator group at time T3where T2<T3<T2+S1+L and T3−T2≠T1−T0.Such embodiments providing that by appropriately combining the shot records noise may be eliminated.

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