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AssigneeSaudi Arabian Oil Company
InventorConstantinos Tsingas
Estimating the term…
An array of seismic energy receivers is deployed at fixed locations across the length and width of a land surface area of interest. A land fleet composed of a number of vibratory swept frequency or vibroseis seismic energy sources is deployed at predetermined initial locations within the receiver array. The sources are arranged in groups which at their initial locations are spaced from other groups of the source fleet by an intergroup spacing distance representing a segment of the receiver array. Each of the vibratory sources in a source group is assigned within that group a designated specific length for its energy emissions and a frequency sweep band different from the other sources in the group. The sources in all groups concurrently emit energy at a succession of spaced, assigned locations as they are moved incrementally over their respective intergroup spacings. The responses of subsurface formations to the emissions from the sources are recorded as a blended seismic record by the fixed array of processors and made available for processing.
A method of surveying of subsurface formations in a survey area of interest with emission of seismic energy by a plurality of vibratory source groups at a succession of vibrator source points along a shot line in the area of interest, each vibratory source group comprising a plurality of swept frequency seismic energy sources emitting seismic energy for reception as blended seismic records at a fixed receiver array of seismic energy receivers deployed across the survey area of interest, each vibratory source group being spaced along the shot line from other vibratory source groups of the plurality of vibratory source groups by an intergroup spacing, the method comprising the method the steps of:
A method of surveying of subsurface formations in a survey area of interest with emission of seismic energy by a plurality of vibratory source groups at a succession of vibrator source points along a shot line in the survey area of interest, each vibratory source group comprising a plurality of swept frequency seismic energy sources, each swept frequency seismic energy source in a vibratory source group being assigned a designated specific time sweep length for its energy emissions and a frequency sweep band different from each of the other swept frequency seismic sources in the vibratory source group, the swept frequency seismic energy sources of the a plurality of vibratory source groups emitting seismic energy for reception as blended seismic records at a fixed receiver array of seismic energy receivers deployed across the survey area of interest, each vibratory source group being spaced along the shot line from other vibratory source groups of the plurality of vibratory source groups by an intergroup spacing, the method comprising the method the steps of:
A method of surveying a subsurface formation, the method comprising:
Dependencies are inferred from the claim text.