Integrated Shaped Charge Canister for Faster Perforation Tool Assembly
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Solution Overview
Problem
The installation and removal of shaped charges from perforation tool frames increase assembly time and complexity, leading to higher costs.
Innovation Solution
Integration of explosive material directly into a cylindrical charge canister with expansion portions, eliminating the need for separate casing and modular units, and allowing for pre-loading of charges and connectors within the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shaped charges are installed into frames with retention features, then the charges are securely held within the frame, but assembly time increases and complexity increases
Solution Approach 1:
The patent merges the shaped charge and its retention features into a single integrated canister unit. The canister includes a body with an interior cavity that houses the shaped charge, and the charge is retained within the canister through integrated retention features rather than requiring separate frame structures. This consolidation eliminates the need for complex external frames while maintaining secure charge retention.
2Reliability
If shaped charges are installed into frames with retention features, then the charges are securely held within the frame, but assembly time increases
Solution Approach 1:
The shaped charge is pre-installed into the canister during manufacturing, with the retention features already in place to secure the charge. This preliminary assembly eliminates the need for time-consuming field installation operations, as the charge is already securely retained in the canister before deployment to the well site.
3Adaptability or versatility
If modular shaped charge units are used, then the charges can be individually installed and removed, but cost and complexity increase
Solution Approach 1:
The patent segments the perforation system into modular canister units, each containing a shaped charge with integrated retention features. Each canister is a self-contained module that can be independently handled and deployed. This segmentation provides modularity for flexible configuration while keeping each individual unit simple and avoiding the complexity of coordinating multiple separate components.
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
Simplifies the assembly process, reduces costs, and enhances operational efficiency by eliminating the need for field installation of charges and connectors.
Implementation Method 1
The tools generally have explosive charges shaped to project a jet of reaction products, including hot gases and molten metal, into the formation
Implementation Method 2
The charges are generally activated by delivering energy, such as thermochemical energy and/or electrical energy, to an apex region of the charge
Data Source
AI summary
A charge canister for a perforation tool has a cylindrical body with an expansion portion extending along a radius of the cylindrical body, the expansion portion having a narrow portion at a first end of the expansion portion and a wide portion at a second end of the expansion portion opposite from the first end. An explosive material is disposed within the expansion portion in direct contact with an interior surface thereof.