Shaped Charge Frame Axial Snap Track Assembly
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Solution Overview
Problem
The existing perforation tools for hydrocarbon production face increased assembly time and complexity due to the cumbersome process of installing and removing shaped charges from frames, which are secured with retention features.
Innovation Solution
The introduction of a shaped charge frame with an axially-oriented track featuring a snap structure for easy installation and removal of shaped charges, allowing for a slide-in mechanism that secures the charges with snap protrusions and provides flexibility for efficient handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shaped charges are secured with retention features in conventional frames, then the charges are held securely in place, but the assembly time and operational complexity increase
Solution Approach 1:
The frame is divided into modular components with axially-oriented tracks that accept shaped charges as separate insertable elements. This segmentation allows charges to be independently installed and removed without affecting other components, reducing assembly time while maintaining secure retention through dedicated track structures.
Solution Approach 2:
Instead of using complex retention features to secure charges, the invention inverts the approach by using simple snap structures that engage with axial tracks. The retention mechanism is simplified from multiple restraining elements to a single snap-fit engagement that secures charges axially, dramatically reducing assembly complexity and time.
2Reliability
If conventional retention features are used to secure shaped charges, then charge security is maintained, but device complexity increases
Solution Approach 1:
The frame structure is segmented into modular sections with integrated axial tracks, eliminating the need for separate complex retention mechanisms. Each track is a self-contained feature that provides secure charge holding, reducing overall frame complexity while maintaining reliability.
Solution Approach 2:
The axial tracks serve multiple functions: they guide charge insertion, provide structural support, and enable secure retention through snap engagement. This multi-functionality eliminates the need for separate retention features, simplifying the overall frame structure while maintaining charge security.
3Reliability
If shaped charges are installed with complex retention features, then secure mounting is achieved, but manufacturing cost increases
Solution Approach 1:
The invention simplifies the retention mechanism from complex multi-component structures to simple snap-fit features integrated into axial tracks. This inversion reduces manufacturing complexity and material requirements, lowering production costs while maintaining secure charge mounting through effective snap engagement.
Solution Approach 2:
The retention feature is merged with the track structure itself, eliminating the need for separate retention components. This integration reduces part count, simplifies manufacturing processes, and lowers assembly costs while maintaining secure charge mounting through the combined track-snap structure.
Data Source
AI summary
A frame for a shaped charge has a body with a cylindrical configuration, the body having a central passage along an axis thereof and a track extending in a direction parallel to the axis for installing and removing a shaped charge, the track having a snap structure. The frame provides a slide-in snap-in charge receptacle for a shaped charge.