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US 7,352,654 B2Granted
Coupling aid for seismic cable
AssigneeWesternGeco L.L.C.
InventorsNicolas Goujon, Johan Fredrik Naes, Rune Voldsbekk, Lars Ranheim
Life of this patent
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Abstract
The present invention provides a coupling device (300). The coupling device includes a collar (315, 405) defining an opening therethrough to receive a seismic sensor (305) such that the collar (315, 405) permits rotation about the seismic sensor (305) and at least three extensions (320, 410) from the collar, the extensions (320, 410) being capable of rotating with the collar (315, 405) such that any two of them may couple to the ground.
Claims30
A coupling device, comprising:
- a collar defining an opening therethrough to receive a seismic sensor such that the collar permits rotation about the seismic sensor, the collar having a dimension parallel to an axial direction of the seismic sensor that is smaller than a corresponding dimension of the seismic sensor parallel to the axial direction;
- and
- at least three extensions from the collar, the extensions capable of rotating with the collar such that any two of them may couple to the ground.
An apparatus, comprising:
- a seismic cable;
- a plurality of sensor housings coupled to the cable;
- and
- a plurality of seismic coupling devices coupled to the plurality of sensor housings such that each seismic coupling device is capable of rotating about a corresponding one of the sensor housing, wherein the seismic coupling devices comprise:
- a collar defining an opening therethrough to receive the sensor housing such that the collar permits rotation about the sensor housing, the collar having a dimension parallel to an axial direction of the seismic sensor that is smaller than a corresponding dimension of the seismic sensor parallel to the axial direction;
- and
- at least three extensions from the collar, the extensions capable of rotating with the collar such that any two of them may couple to the ground.
4 more elements
A coupling device, comprising:
- a collar defining a triangular opening therethrough to receive a seismic sensor such that the collar permits rotation about the seismic sensor, the collar having a dimension parallel to an axial direction of the seismic sensor that is smaller than a corresponding dimension of the seismic sensor parallel to the axial direction;
- and
- at least three extensions from the collar, each of the extensions having a triangular cross-section whose orientation is inverted relative to the triangular opening and being capable of rotating with the collar such that any two of them may couple to the ground.
A coupling device, comprising:
- a collar defining an opening therethrough to receive a seismic sensor such that the collar permits rotation about the seismic sensor, the collar having a dimension parallel to an axial direction of the seismic sensor that is smaller than a corresponding dimension of the seismic sensor parallel to the axial direction;
- and
- at least three extensions from the collar, the extensions capable of rotating with the collar such that any two of them may couple to the ground, at least one of the three extensions including an arm and a spherical endpiece.
A coupling device, comprising:
- a collar defining an opening therethrough to receive a seismic sensor such that the collar permits rotation about the seismic sensor, the collar having a dimension parallel to an axial direction of the seismic sensor that is smaller than a corresponding dimension of the seismic sensor parallel to the axial direction;
- and
- at least three extensions from the collar, the extensions being retractably coupled to the collar by a spring or a deformable material and being capable of rotating with the collar such that any two of them may couple to the ground.
Dependencies are inferred from the claim text.