Segmented Downhole Cable Filler for Core Access
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Solution Overview
Problem
Existing cabling systems for downhole environments face challenges in installation due to high pressure and temperature conditions, where protective elements complicate the removal of filler material for coupling with other components, making the process time-consuming, inefficient, and potentially damaging.
Innovation Solution
A cable design featuring a core surrounded by a protective jacket with a filler mechanism that includes intermittent filler sections or spirally wound filler material, allowing for easy exposure of the core without removing filler material, facilitating coupling with other components without specialized equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective elements are added to cables for downhole environments, then protection against harsh conditions is improved, but installation complexity and difficulty increase
Solution Approach 1:
The filler material is segmented into discrete sections rather than being continuous, allowing installers to access the core at specific locations by simply removing the jacket at those segments without having to remove entire lengths of filler material, thus reducing installation complexity while maintaining protective coverage
Solution Approach 2:
The filler material is extracted or removed only at specific locations where core access is needed, rather than removing the entire filler structure. This selective extraction allows access to the core for coupling while preserving the protective filler sections in other areas
2Ease of operation
If filler material is removed for coupling, then access to core is improved, but time consumption and potential damage increase
Solution Approach 1:
The filler is pre-segmented into sections during manufacturing, so that during installation only the jacket needs to be removed at the coupling location to expose the core, eliminating the time-consuming process of removing entire lengths of filler material and reducing potential for damage
Solution Approach 2:
The filler material is prepared in advance with discrete sections during cable manufacturing, so that when installation is needed, the core is already accessible by simply removing the jacket at the desired location, eliminating the need for time-consuming filler removal operations during field installation
Data Source
AI summary
A technique facilitates installation of cables in a variety of environments, including downhole environments. A cable is provided with a core surrounded by a protective jacket. In the radial space between the core and the protective jacket, a filler mechanism is deployed in the axial direction along the cable. The filler mechanism is designed to provide easy access to the core to facilitate coupling with various related components while limiting risk involved with exposing the core.