Digital sensor streamers and applications thereof
First Claim
1. A geophysical survey system, comprising:
- at least one streamer having a plurality of spaced apart sensor units, at least one of the sensor units including at least one digital hydrophone sensor, the hydrophone sensor comprising a piezoelectric sensing element and employing a quantized feedback loop to produce a digital output signal, wherein the quantized feedback loop is configured to exert a quantized force on the piezoelectric sensing element; and
a data recording system configured to collect and store data from the sensor units.
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Accused Products
Abstract
A disclosed data acquisition system includes one or more streamers having multiple spaced apart sensor units. At least one sensor unit includes at least one digital sensor employing a quantized feedback loop to produce a digital output signal. A data recording system collects and stores data from the sensor units. The quantized feedback loop may be adapted to exert a quantized force on the sensing element. A described method for acquiring data includes deploying at least one streamer having multiple spaced apart sensor units, where at least a portion of the sensor units include a digital sensor employing a quantized feedback loop to produce a digital output signal. A stimulus event is triggered. Data is received from the sensor units and stored.
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Citations
20 Claims
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1. A geophysical survey system, comprising:
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at least one streamer having a plurality of spaced apart sensor units, at least one of the sensor units including at least one digital hydrophone sensor, the hydrophone sensor comprising a piezoelectric sensing element and employing a quantized feedback loop to produce a digital output signal, wherein the quantized feedback loop is configured to exert a quantized force on the piezoelectric sensing element; and a data recording system configured to collect and store data from the sensor units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A geophysical survey method, comprising:
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deploying at least one streamer having a plurality of spaced apart sensor units, wherein at least a portion of the sensor units comprise a digital hydrophone sensor, the hydrophone sensor comprising a piezoelectric sensing element and employing a quantized feedback loop to produce a digital output signal, wherein the quantized feedback loop is configured to exert a first quantized force on the piezoelectric sensing element; triggering a stimulus event; receiving data from the sensor units; and storing the data. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification