초록 ▼

A seismic data generation and collection system is described for use in a exploration vessel for determining the subsea structure of the earth. A plurality of acoustic energy sources are towed behind the boat and acoustic waves are emitted therefrom by conventional means. The reflection at the subse

A seismic data generation and collection system is described for use in a exploration vessel for determining the subsea structure of the earth. A plurality of acoustic energy sources are towed behind the boat and acoustic waves are emitted therefrom by conventional means. The reflection at the subsea interfaces of the acoustic waves are picked up by the energy detectors which produce analog signals. These analog signals are then converted to digital data; multiple computers are used to reformat the data into a desired format. A real time monitor computer and monitor plotter may also be provided to assist the operator in evaluation of the operation of the system. The desired record format includes header information relating to the parameters under which the seismic shot was made, which may be written directly onto the magnetic tape containing the seismic data.

대표청구항 ▼

In a marine seismic exploration vessel having means for producing pulses of seismic energy and means for detecting seismic signals reflected from the earth\s subsurface, a seismic signal recording system comprising: analog-to-digital converter means for converting the seismic signals produced after

In a marine seismic exploration vessel having means for producing pulses of seismic energy and means for detecting seismic signals reflected from the earth\s subsurface, a seismic signal recording system comprising: analog-to-digital converter means for converting the seismic signals produced after each pulse of seismic energy to digital traces in an exploration format; at least two digital computers each having means for converting the exploration format of said digital traces to digital records in a processing format; means for recording said digital records; and means for continuously alternating said digital traces of said analog-to-digital converter means to different ones of said computers so that capacity of said system for recording seismic records in processing format is increased.