Seismic data acquisition apparatus and method
First Claim
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1. A seismic data acquisition apparatus comprising:
- a) a plurality of sensors for detecting a seismic event, each sensor having an output indicative of the seismic event; and
b) at least one unit coupled to the plurality of sensors for receiving each sensor output, the unit adapted to transmit the received outputs as individual data packets, wherein each data packet includes one or more characterizing bits.
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Abstract
The present invention provides a method and apparatus of acquiring and processing seismic data. One or more controllers are each coupled to seismic sensors and to each other to form a network of data acquisition units. A main controller is coupled to a crossline unit via a cable comprising a synchronizing conductor and one or more power/data conductors. Commands and data are packaged such that multiple routings are possible without affecting final calculations. Each crossline unit is capable of accepting a fiber optic input, a wire input or a combination.
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Citations
47 Claims
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1. A seismic data acquisition apparatus comprising:
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a) a plurality of sensors for detecting a seismic event, each sensor having an output indicative of the seismic event; and
b) at least one unit coupled to the plurality of sensors for receiving each sensor output, the unit adapted to transmit the received outputs as individual data packets, wherein each data packet includes one or more characterizing bits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of seismic data acquisition, comprising:
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a) sensing acoustic energy with a plurality of sensors, each sensor providing an output indicative of the sensed energy;
b) combining the sensor outputs into a data packet; and
c) adding to the data packet one or more characterizing bits. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A deployable field unit for use in a seismic data acquisition system comprising:
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a) a housing;
b) an input port for receiving a signal transmitted in a first medium;
c) a media converter for converting said signal for transmission in a second medium; and
d) an output port for transmitted the converted signal. - View Dependent Claims (28, 29, 30, 31)
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32. A seismic data acquisition system comprising:
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a) a plurality of sensors for detecting a seismic event, each sensor having an output indicative of the seismic event; and
b) at least one field unit coupled to the first plurality of sensors for receiving each sensor output, the unit adapted to transmit the received outputs as a data packet, wherein each data packet includes one or more characterizing bits; and
c) a main control and recording unit coupled to the field unit for receiving the data packets. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of deploying a seismic data acquisition system comprising:
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a) extending a first signal transmission medium over a first distance;
b) coupling the first signal transmission medium to a field unit;
c) extending a second signal transmission medium over second distance;
d) coupling the second signal transmission medium to a plurality of sensors;
e) coupling the first signal transmission medium to a central control unit. - View Dependent Claims (46, 47)
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Specification