Seismic vibrator to produce a continuous signal
First Claim
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1. A method comprising:
- receiving, by a control unit of a seismic vibrator, a non-frequency-swept pilot signal having a predetermined waveform;
in response to the pilot signal, the control unit causing vibrational actuation of at least one moveable element of the seismic vibrator; and
generating, by the seismic vibrator due to the vibrational actuation of the at least one moveable element, a first continuous seismic signal having content in a first frequency bandwidth of multiple frequencies.
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Abstract
A seismic vibrator receives a pilot signal having a predetermined waveform. The pilot signal causes vibrational actuation of at least one moveable element of the seismic vibrator. A continuous seismic signal having content in a first frequency bandwidth of multiple frequencies is generated by the seismic vibrator.
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Citations
24 Claims
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1. A method comprising:
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receiving, by a control unit of a seismic vibrator, a non-frequency-swept pilot signal having a predetermined waveform; in response to the pilot signal, the control unit causing vibrational actuation of at least one moveable element of the seismic vibrator; and generating, by the seismic vibrator due to the vibrational actuation of the at least one moveable element, a first continuous seismic signal having content in a first frequency bandwidth of multiple frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 23)
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14. A system comprising:
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a seismic vibrator having a control unit and at least one moveable element, wherein the control unit is responsive to a pilot signal to cause oscillating movement of the at least one moveable element, wherein the pilot signal has a predetermined waveform with content at multiple frequencies within a first frequency bandwidth, wherein oscillating movement of the at least one moveable member is to cause generation of a first continuous seismic signal having content in the first frequency bandwidth, wherein the first continuous seismic signal having the content in the first frequency bandwidth is generated without sweeping the pilot signal across the frequencies of the first frequency bandwidth. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. An article comprising at least one computer-readable storage medium storing instructions that upon execution cause a system having a processor to:
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send a non-frequency-swept pilot signal to a seismic vibrator, wherein the pilot signal has a predetermined waveform having content at multiple frequencies in a predetermined frequency bandwidth, wherein the seismic vibrator is responsive to the pilot signal to generate a continuous seismic signal having content at multiple frequencies in the predetermined frequency bandwidth; and process a signal received by a seismic receiver in response to the continuous seismic signal. - View Dependent Claims (22, 24)
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Specification