Locking and sealing connection structure for load-bearing cable

A technology for connecting structures and cables, applied in the direction of connections, connections, and parts of connecting devices where permanent deformation is active, it can solve problems such as affecting the construction process, low connection reliability, and long construction period, saving time and improving On-site operability and simple structure

Pending Publication Date: 2021-03-19
贵州航天凯山石油仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by various factors such as the outer diameter of the instrument and the outer diameter of the cable, the existing locking and sealing connection structure is inconvenient to operate, the construction period is long, and a variety of special tools are required; the connection reliability is low and the service life is short, which affects The whole construction process and other issues

Method used

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  • Locking and sealing connection structure for load-bearing cable
  • Locking and sealing connection structure for load-bearing cable
  • Locking and sealing connection structure for load-bearing cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Push the load-carrying cable 1 into the figure 1 As shown, peel off layer by layer from top to bottom and from outside to inside. The outermost layer is an outer sheath 16, and the outer sheath 16 is composed of two layers of steel wires to form an armor layer 17. The armor layer 17 is provided with an inner sheath 18, and a group of copper wires 19 are arranged inside the inner sheath 18. The copper wires 19 An F46 insulating layer 22 is arranged on the outside, and a layer of polyimide film 21 is also arranged between the copper wire 19 and the F46 insulating layer 22 .

[0026] In this example, the figure 1 The load-bearing cable 1 shown is safely and reliably connected to the lead wire 20 on the instrument body 13 .

[0027] During specific implementation, first press the load-bearing cable 1 figure 1 Layers shown peeled away. Another example figure 2 As shown, put the weight 2, screw plug 3 and seal 4 on the stripped load-bearing cable 1 in sequence, insert t...

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PUM

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Abstract

The invention discloses a locking and sealing connection structure for a load-bearing cable. The locking and sealing connection structure comprises a load-bearing cable (1); an armor layer (17) of theload-bearing cable (1) is inserted from the upper end of an outer pipe (5) and is fixedly connected with the upper end of the outer pipe (5) through a clamp jacket (6), a clamp (7) and a clamp screwplug (8) in the outer pipe (5); the lower end of the outer pipe (5) is in threaded connection with the upper end of a wiring pipe (15); the lower end of the wiring pipe (15) is in threaded connectionwith the upper end of an instrument body (13); and a lead (20) of the instrument body (13) is connected with a copper wire (19) of the load-bearing cable (1) in the wiring pipe (15). The structure issimple and rapid and efficient to operate; enough initial pre-tightening force can be ensured; and when the cable bears lifting force, the clamp further carried out locking, and enough locking force is guaranteed. The structure is a multi-layer fully-sealed structure. The field operability and the electrical connection reliability are improved. The structure is suitable for locking and sealing connection of a load-bearing cable.

Description

technical field [0001] The invention relates to a locking and sealing connection structure for load-bearing cables, belonging to the technical field of downhole instrument structures. Background technique [0002] In the fields of oil and gas fields or coal mine exploration, geothermal logging, and marine survey, load-bearing cables of various specifications are commonly used to connect downhole instruments, and then lower or lift construction operations. The load-bearing cable is mainly composed of outer sheath, armor layer, inner sheath, conductor and insulation layer. [0003] When using load-bearing cables to supply power to downhole tools, you need to solve: electrical connections and mechanical connections. However, limited by various factors such as the outer diameter of the instrument and the outer diameter of the cable, the existing locking and sealing connection structure is inconvenient to operate, the construction period is long, and a variety of special tools a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/627H01R13/639H01R13/62H01R13/52H01R4/14H01R4/18
CPCH01R4/14H01R4/18H01R13/5202H01R13/5205H01R13/5213H01R13/5216H01R13/62H01R13/627H01R13/639
Inventor 王守舵张小波冯贵洪李金霖
Owner 贵州航天凯山石油仪器有限公司
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