Seismic Cable Positioning Using Coupled Inertial System Units
First Claim
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1. An apparatus for use in a marine seismic survey, comprising:
- a seismic survey object; and
an inertial measurement unit coupled to the seismic survey object.
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Abstract
An apparatus and a method of its use in a marine seismic survey are disclosed. The apparatus includes a seismic survey object (106) and an inertial measurement device (130) coupled to the seismic survey object (106). The method includes taking inertial measurements of the movement of selected points on a seismic spread relative to at least one known point, and applying the inertial measurements to the known point to determine the positions of the selected points.
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Citations
69 Claims
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1. An apparatus for use in a marine seismic survey, comprising:
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a seismic survey object; and an inertial measurement unit coupled to the seismic survey object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A marine seismic spread, comprising:
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a plurality of seismic survey objects, including a plurality of acoustic receivers and at least one acoustic source, distributed over a survey area from at least one known point; and a plurality of inertial positioning devices coupled to the seismic survey objects and capable of taking inertial measurements of the movement of the seismic survey objects relative to the known point. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for use in a marine seismic survey, comprising:
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a seismic cable; and an inertial measurement unit coupled to the seismic cable. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method for use in a marine seismic survey, comprising:
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taking inertial measurements of movement of selected points on a seismic spread relative to at least one known point; and applying the inertial measurements to the known point to determine the positions of the selected points. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A method for use in a marine seismic survey, comprising:
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deploying a seismic cable at a known point; taking inertial measurements of movement of selected points on the seismic cable relative to the known point during the deployment; and applying the inertial measurements to the known point to determine the positions of the selected points. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A method for use in a marine seismic survey, comprising:
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conducting a survey with a seismic spread deployed from at least one known point; taking inertial measurements of movement of selected points on the seismic spread relative to the known point during the conduct of the seismic survey; and applying the inertial measurements to the known point to determine the positions of the selected points. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification