Nexans

Alcatel

Anton Marius Knudsen

Jorn Wardeberg

Lars Oyvind Moen

Jo Slashedrn Wardeberg

A seismic cable ( ) and a method of manufacturing such a cable. The cable includes a plurality of elongated electrical/optical elements which are arranged to be interconnected with a number of seismic sensor devices arranged at intervals along the cable. A polymeric sheath and a protective outer armoring surround the elements to provide protection against radial stress of said cable. The sensor devices are installed outside of the elements and the armoring.

Seismic cables and a method for manufacturing such

A seismic cable ( ) including a plurality of electrical/optical elements ( ) which are arranged to be interconnected with a number of seismic sensor devices ( ) arranged at intervals along the cable and installed in a housing ( ) integrated in the cable ( ). The sensor housing ( ) is centrally arranged in the cable ( ) and interconnected with a central strength element ( ). The electrical/optical elements ( ) are arranged over and around the central element ( ) and over the housing ( ).

In a cable with a pneumatic hose, a sheath ( ) encloses the hose and conductor elements ( ) which are disposed between the sheath ( ) and the hose. A layer of compressible material ( ) is disposed between the conductor elements ( ) and the hose.

Air gun cable

A seismic cable (,) including a plurality of electrical/optical elements (,) which are arranged to be interconnected with a number of seismic sensor devices (,) arranged at intervals along the cable and installed in a housing (,) integrated in the cable (,). The sensor housing (,) is centrally arranged in the cable (,) and interconnected with a central strength element (,). The electrical/optical elements (,) are arranged over and around the central element (,) and over the housing (,).

A seismic cable (,) and a method of manufacturing such a cable. The cable includes a plurality of elongated electrical/optical elements which are arranged to be interconnected with a number of seismic sensor devices arranged at intervals along the cable. A polymeric sheath and a protective outer armoring surround the elements to provide protection against radial stress of said cable. The sensor devices are installed outside of the elements and the armoring.

The present invention relates to seismic cables (1), including a number of elongated electrical/optical elements (8) which are arranged to be interconnected with a number of seismic sensor devices (2,3,4) arranged at intervals along the cable. The sensor devices (2,3,4) are arranged within a central tube (5). The interconnections between the sensor devices (2,3,4) and the elongated elements (8) are arranged externally of the tube via at least one longitudinal slit (6) in the tube wall (5).

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Ener Haugen, Norway

Anton Marius Knudsen