Light precursor cable

A leading segment and cable technology, which is applied in the field of light leading segment cables, can solve the problems of increased cable length, increased operation depth, and impact on offshore operations, and achieves the effects of increased tensile strength, reduced operational difficulty, and omitted pulling

Active Publication Date: 2016-02-17
曹波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the current leading cables have a relatively heavy steel wire structure, which will form a U-shaped structure after being launched into the water, which will greatly increase the length of the cable and greatly increase the depth required for operation. normal offshore operations

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] A light-duty leading cable, comprising a wire core 1, a shielding layer 2, a pressure-resistant layer 3, a waterproof layer 4, a tensile layer 5, a waterproof and wear-resistant layer 6, and a shock-absorbing layer 7, and the shielding layer 2 covers the wire core 1, The pressure-resistant layer 3 covers the shielding layer 2, the waterproof layer 4 covers the pressure-resistant layer 3, the tensile layer 5 covers the waterproof layer 4, the waterproof and wear-resistant layer 6 covers the tensile layer 5, and the shock-absorbing layer 7 covers the waterproof and durable Grinding layer 6.

[0020] The wire core 1 is a metal wire. Also, there is an optical fiber in the core 1 . The shielding layer 2 is wrapped with aluminum foil.

[0021] like figure 2 The tensile layer 5 includes composite wire layers 9 and glued layers 10 , the composite wire layers 9 and the glued layers 10 are arranged alternately, and the composite wire layers 9 are arranged around a common cent...

Embodiment 2

[0025] A light-duty leading cable, comprising a wire core 1, a shielding layer 2, a pressure-resistant layer 3, a waterproof layer 4, a tensile layer 5, a waterproof and wear-resistant layer 6, and a shock-absorbing layer 7, and the shielding layer 2 covers the wire core 1, The pressure-resistant layer 3 covers the shielding layer 2, the waterproof layer 4 covers the pressure-resistant layer 3, the tensile layer 5 covers the waterproof layer 4, the waterproof and wear-resistant layer 6 covers the tensile layer 5, and the shock-absorbing layer 7 covers the waterproof and durable Grinding layer 6.

[0026] The core 1 is a signal wire. Also, the core includes three optical fibers. The shielding layer 2 is wound with copper foil.

[0027] like figure 2 The tensile layer 5 includes composite wire layers 9 and glued layers 10 , the composite wire layers 9 and the glued layers 10 are arranged alternately, and the composite wire layers 9 are arranged around a common center in the ...

Embodiment 3

[0031] A light-duty leading cable, comprising a wire core 1, a shielding layer 2, a pressure-resistant layer 3, a waterproof layer 4, a tensile layer 5, a waterproof and wear-resistant layer 6, and a shock-absorbing layer 7, and the shielding layer 2 covers the wire core 1, The pressure-resistant layer 3 covers the shielding layer 2, the waterproof layer 4 covers the pressure-resistant layer 3, the tensile layer 5 covers the waterproof layer 4, the waterproof and wear-resistant layer 6 covers the tensile layer 5, and the shock-absorbing layer 7 covers the waterproof and durable Grinding layer 6.

[0032] The wire core 1 is a metal wire. Also, there is an optical fiber in the core 1 . The shielding layer 2 is wrapped with aluminum foil.

[0033] like image 3 The tensile layer 5 is surrounded by monofilament fibers, fiber bundles or fiber ropes 11 made of monofilament fibers or fiber bundles parallel to the cable axis.

[0034] The waterproof and wear-resistant layer 6 is c...

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Abstract

The invention relates to a light precursor cable, comprising a core, a shielding layer, a waterproof layer, a tensile layer, a waterproof wear-resisting layer, a damping layer and a buoyancy layer, wherein the shielding layer coats the core, the waterproof layer coats the shielding layer, the tensile layer coats the waterproof layer, the waterproof wear-resisting layer coats the tensile layer, the damping layer coats the waterproof wear-resisting layer, and the buoyancy layer coats the damping layer. The light precursor cable has the characteristics of light weight, strong tension, wear resistance, small creep deformation, cutting resistance and water repellency; the length of the cable which is sunk into water is reduced under the condition that a float marker is not used, so that power loss of a tractor tug is greatly reduced to significantly reduce the operation difficulty of shallow sea operation.

Description

technical field [0001] The invention belongs to the technical field of marine geological exploration, in particular to a light leading cable. Background technique [0002] The leading cable is installed between the ship and the signal acquisition equipment, which requires frequent and long-term towing, retracting, and the leading cable mainly serves as a buffer and vibration isolation for the tow cable and the array. Taking the 3D seismic acquisition of offshore OBC as an example, OBC construction requires frequent retracting and releasing of cables, and it needs to be equipped with source ships, instrument ships, etc. The connection between these ships and underwater detection equipment requires the use of leading cables. [0003] However, most of the current leading cables have a relatively heavy steel wire structure, which will form a U-shaped structure after being launched into the water, which will greatly increase the length of the cable and greatly increase the depth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/18H01B7/282
CPCH01B7/1805H01B7/1855H01B7/189H01B7/2825
Inventor 曹波
Owner 曹波
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