Integrated Guiding and Injecting Mechanism for Conduit Operation
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Solution Overview
Problem
Existing continuous conduit operation equipment is cumbersome and height-restricted, particularly in limited spaces like coal mines, due to the separate guiding gooseneck and injector head configuration, which hinders wellhead installation and increases the risk of under-well abrasion.
Innovation Solution
A folding frame with a guiding and injecting integrated mechanism, incorporating a telescopic mechanism, sprocket and chain clamping assemblies, and a straightening apparatus to facilitate conduit movement and reduce device height, allowing for easier wellhead installation and minimizing under-well abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate guiding gooseneck and injector head configuration is used, then the guiding function and injecting function can be performed, but the device height becomes very high and wellhead installation becomes inconvenient
Solution Approach 1:
The patent combines the guiding gooseneck and injector head into a single integrated mechanism where the guiding channel and injecting components are merged into one structure. This integration eliminates the need for separate high-positioned components, thereby reducing the overall device height while maintaining both guiding and injecting functions, making wellhead installation convenient in limited space environments.
2Reliability
If the injector head has a certain height above the wellhead, then it can provide shielding and support functions, but it brings inconvenience to wellhead equipment installation
Solution Approach 1:
The patent employs a telescopic mechanism that allows the injector head to dynamically adjust its position and height. During wellhead installation, the injector head can be retracted to a lower position to facilitate equipment installation. Once installation is complete, it can be extended to provide the necessary shielding and support functions, thus balancing both requirements through dynamic adjustment.
3Length of stationary object
If a folding frame with telescopic mechanism is used, then the device height can be reduced, but the structural complexity increases
Solution Approach 1:
The folding frame is divided into multiple telescopic sections that can independently extend and retract. Each section contains simplified telescopic components rather than one complex mechanism, making the overall structure more manageable and easier to control while achieving significant height reduction when folded.
4Object-affected harmful factors
If the conduit guiding channel inlet and outlet are not in a straight line, then under-well abrasion can be minimized, but the guiding mechanism becomes more complex
Solution Approach 1:
The guiding channel is designed with a curved or arc-shaped path instead of a straight line, allowing the conduit to follow a smooth trajectory that prevents direct contact and abrasion at the wellhead area. This curved path design achieves abrasion prevention while maintaining relatively simple guiding mechanism structure through geometric optimization.
Data Source
AI summary
Disclosed is a continuous conduit operation apparatus, which comprises a folding frame and a guiding and injecting integrated mechanism configured to pull the conduit to go downwards a well or upwards a lifting direction. The folding frame comprises a base, a mounting frame connected to the base in a movable connection, and a telescopic mechanism configured to rotate the mounting frame in a vertical plane around a position of the movable connection. One end of the telescopic mechanism is movably connected to the base, another end of the telescopic mechanism is movably connected to the mounting frame. The guiding and injecting integrated mechanism is arranged on the mounting frame. The present disclosure integrates the guiding function and the injection function to reduce the height of the apparatus and is suitable for operation environment with limited space and height.