Vacuum-Sealed Bulkhead Penetration for Hazardous Rig Environments
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Solution Overview
Problem
Drilling operations on rigs face challenges when penetrating bulkheads due to heat and spark generation, leading to increased operational costs and risks of fire or explosion, requiring shutdowns to minimize hazards.
Innovation Solution
A vacuum-sealing apparatus is used to isolate and penetrate bulkheads on drilling rigs, applying negative pressure to reduce heat and spark generation, allowing for safe penetration during ongoing operations by maintaining a vacuum until internal temperatures are safe and using sensors and control systems to manage the cutting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drilling operation is shut down to penetrate the bulkhead, then the risk of fire and explosion is reduced, but operational expense and non-productive time increase
Solution Approach 1:
The bulkhead penetration process is segmented into distinct phases: vacuum sealing preparation, controlled cutting operation, and post-penetration sealing. This segmentation allows the hazardous cutting operation to be isolated in a controlled vacuum zone while the rest of the drilling operation continues uninterrupted, resolving the contradiction between safety and productivity
Solution Approach 2:
A vacuum sealing apparatus acts as an intermediary barrier between the bulkhead penetration zone and the surrounding hazardous environment. This intermediary creates a controlled vacuum atmosphere that suppresses fire and explosion risks from sparks and heat, enabling continuous drilling operations without shutdown while maintaining safety
2Productivity
If the bulkhead penetration is performed during drilling operation, then productivity is maintained, but the risk of fire and explosion increases due to heat and spark generation
Solution Approach 1:
The vacuum sealing apparatus creates an inert vacuum environment around the bulkhead penetration zone, removing oxygen and other combustible gases that would otherwise support fire and explosion. This inert atmosphere allows abrasive cutting operations to proceed during active drilling without increasing fire hazard, maintaining both productivity and safety
Solution Approach 2:
The vacuum sealing apparatus converts the potentially harmful effects of heat and sparks generated during bulkhead cutting into beneficial outcomes. By containing these thermal effects within the vacuum-sealed zone, the heat is prevented from igniting surrounding hazardous atmospheres, while the vacuum itself suppresses combustion, thus converting the hazard into a controlled process that enables continuous operation
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
Enables safe and efficient penetration of bulkheads during drilling operations, reducing operational costs and minimizing hazards by controlling temperature and preventing fires or explosions, thus allowing continuous operation without shutting down the drilling process.
Implementation Method 1
A vacuum-sealing apparatus is used to isolate and penetrate bulkheads on drilling rigs, applying negative pressure to reduce heat and spark generation
Implementation Method 2
applying negative pressure to reduce heat and spark generation, allowing for safe penetration during ongoing operations by maintaining a vacuum until internal temperatures are safe
Data Source
AI summary
Wall sealing and penetrator apparatus for use in penetrating walls in dangerous conditions. An example wall sealing and penetrator apparatus includes a first portion comprising: a first housing, a first sealing element, a first vacuum port; and a second portion comprising, a second housing, a second sealing element, a second vacuum port, and a cutting element.