Foldable Continuous Rod Guide for Rig Jib Stabilization
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Solution Overview
Problem
Existing well servicing technologies lack effective collapsible guides for continuous well strings and inadequate stabilization during storage and transport, limiting efficiency and convenience.
Innovation Solution
A foldable guide system comprising arc-shaped segments with pivot joints and hydraulic actuators, allowing for compact storage and deployment, along with a selectively deployable jib and winchline system for improved stabilization and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a continuous rod guide is suspended from the mast during operation, then it can guide continuous rod into the injector, but it occupies space and cannot be compacted for storage and transport
Solution Approach 1:
The continuous rod guide is divided into multiple telescopic segments that can be collapsed into one another. Each segment contains guide rollers and can be independently retracted, allowing the entire guide structure to be compacted to a fraction of its operational length for storage and transport while maintaining full functionality when deployed.
Solution Approach 2:
The guide structure employs telescopic mechanisms with movable segments that can dynamically change between extended (operational) and retracted (storage) states. Hydraulic or mechanical actuators enable the segments to extend outward to form the guide path during operation and retract inward for compact storage, providing adaptability between operational and storage modes.
2Adaptability or versatility
If the mast is used in slant well mode requiring jib deployment, then it can reach outboard locations, but the jib increases device complexity and storage requirements
Solution Approach 1:
The jib is constructed as a telescopic structure with multiple segments that can extend and retract. When slant well mode is required, the jib segments extend to reach the necessary outboard location. When not in use, the segments retract into a compact configuration, reducing the overall device footprint and simplifying storage without compromising the ability to deploy for slant well operations.
Solution Approach 2:
The telescopic jib serves multiple functions: it provides structural support for the guide during both vertical and slant well operations, enables the mast to adapt to different well configurations, and can be reconfigured or stored when not needed. This multi-functionality reduces the need for separate specialized structures for different operational modes.
3Stability of the object's composition
If the guide is stabilized during operation, then it maintains positional accuracy, but it lacks stabilization means during storage and transport
Solution Approach 1:
The stabilization system is designed to be dynamically active only when needed. During operation, the guide segments are extended and locked in position, with stabilization mechanisms engaged to maintain positional accuracy. During storage and transport, the segments are retracted and the stabilization mechanisms are disengaged or automatically adjusted, allowing the structure to adapt to different stability requirements without permanent fixtures.
Solution Approach 2:
The telescopic guide structure incorporates self-stabilizing features that automatically engage or disengage based on the operational state. When segments are extended for operation, built-in stabilization elements activate to secure the guide in position. When retracted for storage, the same structure naturally assumes a compact, stable configuration without requiring additional stabilization means, making the system self-sufficient across different states.
Data Source
AI summary
An foldable guide for a continuous rod injector features first and second segments of similar length and a shorter third segment. In a fully folded state of the guide, the shorter third segment is foldable into a position contained between facing-together concave sides of the first and segments for improved collapse of the guide into a compact state for storage or transport. A proximal end of the first segment is mounted to the injector, which is carried on a mast having a selectively deployable jib thereon at an elevation above the installed position of the injector. The jib is movable between a slant-mode condition reaching outward from the mast and a vertical-mode position retracted into a more compact relation with the mast. The slant-mode condition provides improved support and stability by providing a more direct overhead support for the rod guide in slant well applications.