Detonation Interrupt Device for Perforation Guns
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Solution Overview
Problem
The shipment of explosives for oil and gas applications is subject to restrictive regulations, which can increase shipping costs and risks, necessitating a solution that minimizes these constraints while ensuring safety.
Innovation Solution
A detonation interrupt device with a mechanical member that physically separates detonation train members until the perforation gun assembly is fully assembled, allowing for safe and efficient coupling of detonators and detonation cords, thereby enabling proper functioning and reducing the risk of accidental detonation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detonation train members are physically separated during shipment, then safety is improved and regulatory compliance is easier, but device complexity increases due to the mechanical member and assembly requirements
Solution Approach 1:
The detonation train is divided into separate members (first detonation train member and second detonation train member) that are physically separated during shipment. The mechanical member further segments the assembly process by providing a movable barrier that separates these detonation train members until final assembly, allowing safe transport while enabling functional integration when needed.
Solution Approach 2:
The mechanical member acts as an intermediary element between the first and second detonation train members. It provides a physical barrier that prevents direct interaction between the separated detonation train members during transport, while its movable nature allows it to be displaced during assembly to enable the detonation train to function properly when assembled.
2Productivity
If detonation train members are assembled together, then device functionality is improved, but safety risk increases during assembly and handling
Solution Approach 1:
The detonation train members are prepared and positioned in advance within the housing, but kept separated by the mechanical member until the final assembly step. This preliminary arrangement allows all components to be ready for immediate functionality while maintaining safety through physical separation during handling and assembly operations.
Solution Approach 2:
The mechanical member is extracted or displaced from its blocking position during the final assembly step, removing the safety barrier that separated the detonation train members. This extraction action enables the detonation train to become functional while ensuring that the separation (and thus safety) is maintained during all previous handling and assembly operations.
3Quantity of substance
If explosive components are shipped in separate packages, then shipping costs and regulatory restrictions are reduced, but assembly precision requirements increase
Solution Approach 1:
The housing serves multiple functions: it contains and positions both separated detonation train members during transport, provides a structured assembly environment, and guides the mechanical member's movement. This multi-functional design simplifies the assembly process and reduces precision requirements by providing built-in alignment and positioning features.
Solution Approach 2:
The mechanical member's movement is designed to be self-guided within the housing structure, using the housing walls and features as guides. This self-service mechanism reduces the need for high-precision manual assembly, as the component geometry and housing features automatically guide the mechanical member to its correct final position, enabling functionality while maintaining ease of assembly.
Data Source
AI summary
Provided is a detonation interrupt device. The detonation interrupt device, in one aspect, includes a first detonation train member positioned within a housing, and a mechanical member positioned proximate the first detonation train member. In this aspect, the mechanical member is movable between a first position physically separating the first detonation train member from a second detonation train member and thereby preventing the first detonation train member from detonating the second detonation train member, and a second position not physically separating the first detonation train member from the second detonation train member and thereby allowing the first detonation train member to detonate the second detonation train member, wherein the mechanical member is configured to automatically move from the first position to the second position as the housing and the second detonation train member move linearly with respect to each other.