Multi-portion Shaped Charge Liner for Tungsten Efficiency
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Solution Overview
Problem
Current shaped charge liners waste a significant amount of expensive tungsten material as only about 25-30% is converted into the jet, with the remaining 75% in the slug portion not contributing effectively to penetration, leading to inefficiencies in hydrocarbon recovery.
Innovation Solution
A liner for shaped charges comprising multiple portions, where at least one portion is made of powder materials, such as aluminum, copper, or tungsten, optimized to enhance the jet and slug segments for improved perforation, with varying particle sizes to achieve uniform detonation and stable jet formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If powder materials like tungsten are used in the slug portion of the liner, then the liner can be fabricated with expensive materials to achieve high density, but a substantial amount of money is wasted because only 25-30% of the material is converted into the jet
Solution Approach 1:
The liner is divided into multiple portions with different materials - the jet portion uses high-density powder materials like tungsten for maximum penetration, while the slug portion uses cheaper alternative materials. This segmentation allows optimization of each portion's function while reducing overall material waste.
Solution Approach 2:
Different portions of the liner are assigned different material properties according to their functional requirements. The jet portion requires high density for penetration effectiveness, so it uses expensive powder materials, while the slug portion can use cheaper materials since it serves a different function of breaking up and preventing plugging.
2Quantity of substance
If different solid materials are used for the jet and slug portions, then material efficiency can be improved, but the manufacturing complexity increases
Solution Approach 1:
The invention allows for parameter changes in material composition, density, and particle size across different portions of the liner. By adjusting these parameters locally, the design achieves optimal material efficiency while maintaining manufacturability through controlled variation rather than complete heterogeneity.
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 multi-portion liner design significantly enhances the conversion efficiency of tungsten and other materials into the jet, optimizing the perforation process and reducing material waste, thereby improving the effectiveness of shaped charge operations.
Implementation Method 1
The particle sizes of the powder materials for the slug and jet segments of the liner may be selected to achieve a more uniform detonation wave front through the slug and/or jet
Data Source
AI summary
A liner for a shaped charge is disclosed which comprises a plurality of portions, where at least one portion is composed of powder materials. In one embodiment, the liner comprises two portions that are composed of different powder materials, while alternative embodiments of the liner comprise three portions or four portions. When the shaped charge is used in a perforating gun, reactive powder materials may be added to the plurality of portions of the liner to optimize the penetration or the enhancement of the perforating tunnel.