Cable Protecting Device Spring-Loaded Collar Engagement
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Solution Overview
Problem
Existing cable protecting devices for wellbores are time-consuming to mount on pipe connections and lack rigidity, often requiring multiple personnel and increasing the risk of device parts falling into the well, especially at pipe joints with collars of wider diameters.
Innovation Solution
A cable protecting device with a collar extending around the pipeline circumference, featuring a second recess with spring-loaded engaging means that securely fasten to the collar ends, providing a positive lock and reducing the risk of falling, and allowing for easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cable protecting devices are mounted on pipe connections using conventional methods, then the cable is protected, but the mounting operation is time-consuming and requires multiple personnel
Solution Approach 1:
The cable protecting device is divided into separate components: a clamp body and engaging means that can be assembled together. This segmentation allows for pre-assembly and simplifies the mounting operation on pipe connections, reducing the time and personnel required while maintaining protection functionality.
Solution Approach 2:
The engaging means incorporates spring-loaded elements that provide dynamic engagement with the pipe connection. This dynamic mechanism allows for easy installation and removal while ensuring secure mounting during operation, thereby improving productivity without excessive complexity.
2Reliability
If conventional cable protecting devices are used on pipe joints, then cable protection is provided, but the risk of device parts falling into the well increases
Solution Approach 1:
The engaging means is designed with spring-loaded elements that pre-load the engagement mechanism before actual use. This prior cushioning ensures that the device maintains secure engagement with the pipe connection throughout operation, preventing parts from falling into the well and improving reliability.
Solution Approach 2:
The spring-loaded engaging means automatically maintains engagement pressure on the pipe connection without requiring additional active components or continuous monitoring. This self-service mechanism ensures consistent retention and prevents accidental disengagement or part loss.
3Ease of operation
If multiple personnel are deployed for mounting operations, then secure installation is achieved, but the danger of personnel injury increases
Solution Approach 1:
The device is segmented into components that can be easily assembled and mounted, allowing a single operator to perform the installation safely and efficiently. This reduces personnel exposure to hazards while maintaining proper installation quality.
Solution Approach 2:
The dynamic spring-loaded engaging means provides self-adjusting engagement that is safe to operate with minimal personnel. The mechanism inherently ensures proper installation without requiring multiple people to monitor and control the mounting process.
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 device enables rapid, secure mounting and removal of cable protecting devices on downhole pipes, reducing the risk of parts falling into the well and minimizing the need for multiple personnel, while maintaining a secure grip even in high-temperature environments.
Implementation Method 1
at least one of the engaging means is spring loaded so as to apply a force through the engaging means into the corresponding end of the collar
Data Source
AI summary
This invention relates to a cable protecting device (5) for protecting cables (7) extending over a collar (2) on a pipeline (1), said collar extending around the circumference of the pipe and extending a known length outside said pipeline circumference, the collar having a first and second end surface, the cable protecting device (5) having a length in the direction of the pipeline being longer than the collar (2), and comprising a first recess along the inner surface for enclosing the cable (7) to be protected and a second recess in said inner surface for containing at least a part of the collar (2), the ends of said device at least partially covering the corresponding parts of the collar ends. The length of the second recess corresponds essentially to the length of the collar, each end of said second recess being provided with engaging means (4) adapted to engage with the corresponding end surface of the collar, thus fixing the protecting device (5) to the collar.