Logging Optical-Fiber Duct Cable with Armor Tubes
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Solution Overview
Problem
Existing logging cables transmit electrical signals through metal conductors, resulting in low transmission speed and limited information capacity, making them unsuitable for complex working conditions.
Innovation Solution
A logging encapsulated optical-fiber duct cable with an external encapsulation layer, armor tubes, and a filling layer, using thermoplastic materials and stainless steel components, along with a manufacturing method that includes forming optical fiber protective tubes, filling layers, and armor tubes to protect and enhance the optical fibers, enabling high-speed signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If metal conductors are used to transmit electrical signals, then the cable structure is simple, but the transmission speed is low and the amount of information is small
Solution Approach 1:
The patent replaces metal conductors that transmit electrical signals with optical fibers that transmit optical signals. This substitution fundamentally changes the signal transmission mechanism from electrical to optical, enabling much higher transmission speeds and information capacity while maintaining cable functionality
Solution Approach 2:
The patent employs a composite structure consisting of optical fibers, protective tubes, filling layers, and armor tubes. This multi-material composite design provides both high-speed optical transmission capability and enhanced mechanical protection, resolving the contradiction between transmission performance and structural complexity
2Adaptability or versatility
If metal conductors are used, then the cable is easy to manufacture, but it cannot be applied to complex working conditions
Solution Approach 1:
The patent divides the cable into distinct functional segments: optical fibers for signal transmission, protective tubes for fiber protection, filling layers for structural integrity, and armor tubes for mechanical strength. This segmentation allows each component to be optimized for its specific function while improving overall adaptability to complex working conditions
Solution Approach 2:
The patent changes the fundamental transmission parameter from electrical signals to optical signals, enabling the cable to operate in environments where electrical conductors would fail. This parameter change allows application in complex conditions such as high electromagnetic interference, corrosion-prone environments, and high-temperature settings
3Reliability
If optical fibers are protected by multiple layers, then the corrosion resistance and mechanical protection are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent implements a nested protective structure where optical fibers are placed inside protective tubes, which are then surrounded by filling layers, and finally encased in armor tubes. This nested arrangement provides multiple layers of protection against corrosion and mechanical damage while organizing the manufacturing process in a systematic sequence
Solution Approach 2:
The patent introduces filling layers as intermediary elements between the protective tubes and armor tubes. These filling layers serve as mediators that provide additional corrosion protection and structural support, enhancing reliability while maintaining a manageable manufacturing process through standardized layering
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a logging cable with improved corrosion resistance, mechanical protection, high temperature tolerance, and the ability to transmit multiple signals at high speeds, addressing the limitations of existing cables.
Implementation Method 1
A logging encapsulated optical-fiber duct cable comprises an external encapsulation layer. At least one armor tube is arranged in the encapsulation layer. An optical fiber protective tube is arranged in each armor tube. An optical fiber is arranged in the optical fiber protective tube.
Data Source
AI summary
The present invention discloses a logging encapsulated optical-fiber duct cable and a manufacturing method thereof. The encapsulated optical-fiber duct cable mainly comprises an external encapsulation layer. At least one armor tube is arranged in the encapsulation layer. An optical fiber protective tube is arranged in each armor tube. A filling layer is arranged in a space between the optical fiber protective tube and the armor tube. An optical fiber is arranged in the optical fiber protective tube. The manufacturing method mainly comprises four steps: pavement of the optical fiber and formation of the protective tube, formation of the filling layer, formation of the armor tube and formation of the encapsulation layer. The optical-fiber duct cable of the present invention has the advantages of large length, high strength, good temperature tolerance, small signal transmission loss, high transmission speed and synchronous transmission of multiple signals.