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Production process of winding layer of logging signal cable

A technology for cable winding and well logging signals, which is applied in the direction of communication cables, cable/conductor manufacturing, cables, etc., can solve the problems of short service life of well logging cables and easy damage of well logging cables, and achieve strong bending resistance, Ease of demolding and increased strength

Active Publication Date: 2018-12-04
ANHUI TIANCAI CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the logging cable may be damaged by the surrounding environment during the downhole process, and the logging cable is constantly rotating during work, the logging cable is easily damaged, resulting in a short service life of the logging cable

Method used

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  • Production process of winding layer of logging signal cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A production process for a well logging signal cable winding layer, comprising the following steps:

[0026] (1) Mix 100 parts of nano-titanium dioxide-modified polyvinyl chloride, 50 parts of polystyrene, 30 parts of corundum-modified polycarbonate and 20 parts of isoprene rubber, and put them in a high-speed mixer and stir for 40 minutes at a speed of 600 r / min. After stirring, add a urea solution with a mass concentration of 5% that is 20 times the weight of the mixture into the mixture, put the mixed solution into a closed environment filled with a mixture of hydrogen and nitrogen, and let it stand at 110°C for 30 minutes, wherein the pressure of the mixture is 2Mpa, the volume ratio of hydrogen to nitrogen is 2:3, filter after standing, wash the precipitate with deionized water, put it in a vacuum drying oven to dry;

[0027] (2) Dissolve the dried mixture in the above steps in a calcium chloride solution that is 30 times the weight of the mixture and have a mass c...

Embodiment 2

[0031] A production process for a well logging signal cable winding layer, comprising the following steps:

[0032] (1) Mix 150 parts of nano-titanium dioxide-modified polyvinyl chloride, 80 parts of polystyrene, 60 parts of corundum-modified polycarbonate and 40 parts of isoprene rubber, and put them into a high-speed mixer and stir for 60 minutes at a speed of 800 r / min. After stirring, add urea solution with a mass concentration of 26 times the weight of the mixture to the mixture, and put the mixed solution into a closed environment full of hydrogen and nitrogen gas mixture, and let it stand at 140°C for 40min, wherein the pressure of the mixture gas 3Mpa, the volume ratio of hydrogen to nitrogen is 2:3, filter after standing, wash the precipitate with deionized water, put it in a vacuum drying oven to dry;

[0033] (2) Dissolve the dried mixture in the above steps in a calcium chloride solution that is 50 times the weight of the mixture and have a mass concentration of 13...

Embodiment 3

[0041] A production process for a well logging signal cable winding layer, comprising the following steps:

[0042] (1) Mix 120 parts of nano-titanium dioxide modified polyvinyl chloride, 60 parts of polystyrene, 40 parts of corundum modified polycarbonate and 30 parts of isoprene rubber, and put them into a high-speed mixer and stir for 50 minutes at a speed of 700r / min After stirring, add a urea solution with a mass concentration of 6% that is 22 times the weight of the mixture into the mixture, put the mixed solution into a closed environment filled with a mixture of hydrogen and nitrogen, and let it stand at 120°C for 35 minutes, wherein the pressure of the mixture is 2Mpa, the volume ratio of hydrogen to nitrogen is 2:3, filter after standing, wash the precipitate with deionized water, put it in a vacuum drying oven to dry;

[0043] (2) Dissolve the dried mixture in the above steps in a calcium chloride solution that is 40 times the weight of the mixture and have a mass c...

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Abstract

The invention discloses a production process of a winding layer of a logging signal cable, and relates to the field of signal cables. The production process comprises the steps of firstly uniformly mixing nano-titanium dioxide modified polyvinyl chloride, polystyrene, corundum modified polycarbonate and isoprene rubber, putting the mixture into a high-speed mixer to mix, then adding a urea solution, putting the mixed solution into a closed environment filled with the mixture of hydrogen and nitrogen, filtering after standing, dissolving the precipitate in a calcium chloride solution, placing the solution in a water bath with the temperature being 35-45 DEG C, adding coconut oil fatty acid diethanolamide, dicumyl peroxide, zinc oxide and 2-methyl methacrylate into the solution, finally adding viscose fibers, nano-aluminum oxide and methyl methacrylate- n-butyl acrylate-sodium allylsulfonate, putting the mixture in sesame oil saturated vapor pressure for fumigation, recycling ethyl alcohol and sesame oil by vacuum concentration, and delivering the mixture to an extruding machine for extrusion molding. The prepared winding layer of the logging signal cable is high in strength, toughness and bending resistance, good in corrosion resistance and long in service life.

Description

Technical field: [0001] The invention relates to the field of signal cables, in particular to a production process for winding layers of well logging signal cables. Background technique: [0002] A signal cable is a signal transmission tool. The signal transmitted by the general signal cable is very small. In order to avoid signal interference, the signal cable has four layers of protection, which are insulation layer, shielding layer, winding layer, and sheath layer. It is only to ensure the accurate transmission of weak power signals. The shielding layer, Generally, it is conductive cloth, braided copper mesh or copper foil (aluminum), and the shielding layer needs to be grounded. External interference signals can be guided into the ground by this layer, preventing interference signals from entering the inner conductor and reducing the loss of transmission signals. The winding layer is mainly to prevent the shielding net from damaging the insulation layer. [0003] With ...

Claims

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Application Information

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IPC IPC(8): H01B13/24H01B11/00
CPCH01B11/00H01B13/24
Inventor 林建宝瞿庆广林新中陶伟高昌林李贻昌徐家斌李登军
Owner ANHUI TIANCAI CABLE GRP
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