Method and device for simplifying the localization of a subsurface zone within the scope of a seismic exploration
First Claim
1. A method of collecting seismic data from a plurality of locations in a seismic field into which a seismic signal is transmitted, each location having a seismic receiver for receiving and recording seismic data resulting from the seismic signal, said method comprising the steps of:
- (a) moving a single position sensor to each of the plurality of locations;
(b) activating the position sensor at each location to generate a position signal indicating the geographic position of the location;
(c) recording the position signal for each location on the seismic receiver of such location;
(d) receiving and recording seismic data at the plurality of locations, the seismic data resulting from the seismic signal; and
(e) transmitting the position signal and the seismic data from each of the plurality of locations to a central station.
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Accused Products
Abstract
A method for the automatic association, with seismic signals received by receivers (R1 . . . Rn) distributed on a site to be explored, of topographic data relative to the location of these receivers. The seismic signals are collected and stored by seismic acquisition devices (B1-Bn) which, after each seismic "shooting", transmit the signals successively to a central station 1. When the receivers are positioned in the field, each receiver is located by means of radiopositioning of the GPS type for example, and the position indications are introduced into an auxiliary memory of the corresponding acquisition device. After each repatriation of the data of a shooting, the indications are read in this memory and remain associated with those data at the time of the general grouping on the tape recorder of the central station.
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Citations
15 Claims
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1. A method of collecting seismic data from a plurality of locations in a seismic field into which a seismic signal is transmitted, each location having a seismic receiver for receiving and recording seismic data resulting from the seismic signal, said method comprising the steps of:
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(a) moving a single position sensor to each of the plurality of locations; (b) activating the position sensor at each location to generate a position signal indicating the geographic position of the location; (c) recording the position signal for each location on the seismic receiver of such location; (d) receiving and recording seismic data at the plurality of locations, the seismic data resulting from the seismic signal; and (e) transmitting the position signal and the seismic data from each of the plurality of locations to a central station. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for collecting seismic data from a plurality of locations in a seismic field into which a seismic signal is transmitted, comprising:
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a single position sensor adapted to be moved to each of the plurality of locations to generate and transmit a position signal indicating the geographic position of the location; a plurality of seismic receivers, at least one seismic receiver positioned at each of the locations for receiving seismic data resulting from the seismic signal; and a plurality of seismic acquisition devices, one seismic acquisition device positioned at each of the locations for receiving and recording the position signal of the location, for recording the seismic data received by the at least one seismic receiver at the location, and for transmitting the recorded position signal and seismic data to a central station. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification