PARTICLE MOTION VECTOR MEASUREMENT IN A TOWED, MARINE SEISMIC CABLE
First Claim
6. An apparatus comprising:
- a streamer;
a plurality of acoustic sensors distributed along the streamer; and
a plurality of particle motion sensors distributed along the streamer, at least one particle motion sensor being symmetric about its longitudinal axis and having a center of gravity coincident with its volumetric center.
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0 Petitions
Accused Products
Abstract
A particle motion sensor, includes: a sensing element capable of sensing a particle motion vector from a change in position thereof, and a packing material in which the sensing element is positioned, wherein the particle motion sensor is symmetric about its longitudinal axis and has a center of gravity coincident with its volumetric center. An apparatus includes a streamer; a plurality of acoustic sensors distributed along the streamer; and a plurality of particle motion sensors distributed along the streamer, at least one particle motion sensor being symmetric about its longitudinal axis and having a center of gravity coincident with its volumetric center.
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Citations
59 Claims
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6. An apparatus comprising:
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a streamer; a plurality of acoustic sensors distributed along the streamer; and a plurality of particle motion sensors distributed along the streamer, at least one particle motion sensor being symmetric about its longitudinal axis and having a center of gravity coincident with its volumetric center. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A particle motion sensor, comprising:
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an accelerometer capable of sensing a particle motion vector from a change in position thereof, and a packing material in which the sensing element is positioned. - View Dependent Claims (16, 17, 18, 19)
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20. An apparatus comprising:
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a streamer; a plurality of acoustic sensors distributed along the streamer; and a plurality of particle motion sensors distributed along the streamer, at least one particle motion sensor including; an accelerometer capable of sensing a particle motion vector from a change in position thereof, and a packing material in which the sensing element is positioned. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A particle motion sensor, comprising:
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an accelerometer capable of sensing a particle motion vector from a change in position thereof, and a packing material in which the accelerometer is positioned; wherein the particle motion sensor is symmetric about its longitudinal axis and has a center of gravity coincident with its volumetric center.
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29. A streamer, comprising:
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a cable; a plurality of acoustic sensors distributed along the seismic cable; and a micro electromechanical system accelerometer. - View Dependent Claims (1, 2, 3, 4, 5, 30, 31, 32, 33, 36, 37, 38, 39)
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32-1. The streamer of claim 29, wherein the micro electromechanical system accelerometer is disposed in a packing material.
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35. The streamer of claim 34, wherein the packing material comprises:
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a fluid; a deformable, expanded foam body; a polymer with added micro-spheres;
ora low density plastic.
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- 40. A particle motion sensor for use in a streamer, the particle motion sensor comprising a micro electromechanical system accelerometer.
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48. A particle motion sensor for measuring seismic wavefield in water, comprising:
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a sensing element capable of sensing a particle motion vector from a change in position thereof; and a packing material in which the sensing element is positioned; wherein the sensing element is a velocity meter or an accelerometer comprises micro electromechanical system. - View Dependent Claims (49, 50, 51, 52)
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53. A particle motion sensor, comprising:
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a packing material; a plurality of components including at least one sensing element, the components being disposed in the packing material in a manner defining an aperture through which a cable may extend. - View Dependent Claims (54, 55, 56, 57, 58, 59)
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Specification