Capping Stack Diverter for High-Pressure Blowout Containment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Offshore oil well blowouts pose challenges due to high-pressure hydrocarbon releases, which conventional hoses cannot handle, leading to environmental damage and potential secondary subsea blowouts, with existing diverter systems being complex, time-consuming, and inefficient in containing and recapturing hydrocarbons.
Innovation Solution
A capping stack system with a connector for blowout preventers, a flowing stack with rigid steel pipes and guide posts, and an intervention blowout preventer, allowing for secure diversion and containment of high-pressure fluids up to 15,000 p.s.i. without the need for hoses or subsea equipment, facilitating easy installation and minimizing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional hoses are used to divert high-pressure hydrocarbons, then the system is simple, but the hoses cannot handle the high pressure and fail
Solution Approach 1:
The diverter system is divided into separate functional components: a diverter body with internal passages, a piston mechanism for controlling flow, and a discharge outlet. This segmentation allows each component to be optimized for its specific function while collectively handling the high-pressure fluid diversion without requiring a single complex hose structure.
Solution Approach 2:
The piston acts as an intermediary mechanism between the high-pressure hydrocarbon flow and the discharge outlet. It controls the opening and closing of the flow path, mediating the pressure transmission and enabling safe diversion of high-pressure fluids through a controlled mechanism rather than relying on pressure-resistant hoses alone.
2Strength
If complex diverter systems are used to contain high-pressure fluids, then the system can handle the pressure, but the installation becomes time-consuming and inefficient
Solution Approach 1:
The diverter system is designed with pre-assembled components and internal passages that are prepared in advance. The piston mechanism and flow passages are configured beforehand, allowing for rapid deployment and installation without time-consuming assembly procedures during the emergency diversion operation.
Solution Approach 2:
The system incorporates a movable piston that can dynamically adjust the flow path opening and closing based on operational requirements. This dynamic mechanism allows the system to be installed and activated quickly, as the piston can be positioned to open the flow path without requiring complex pre-configuration of the entire diversion system.
3Productivity
If conventional diverter systems are used, then the system can divert fluids, but it cannot efficiently recapture hydrocarbons and causes environmental damage
Solution Approach 1:
The system converts the potentially harmful high-pressure hydrocarbon release into a beneficial controlled flow. By using the piston mechanism to precisely control the discharge path, the system directs the hydrocarbon flow through a predetermined route to a safe discharge location, transforming an environmental hazard into a controlled process that prevents widespread pollution while maintaining productivity.
Solution Approach 2:
The diverter system is designed to be self-regulating through the piston mechanism, which automatically responds to pressure changes and flow conditions. The system self-adjusts the flow path and discharge rate without requiring external intervention, enabling efficient hydrocarbon recapture and minimizing environmental damage through autonomous operation.
Data Source
AI summary
A system for capping a blowout preventer has a capping stack with a connector suitable for connection to the blowout preventer, a flowing stack, and an intervention blowout preventer connected to a connector of the flowing stack. The capping stack has a fluid passage extending from the connector. The capping stack has at least one diverter line in communication with the fluid passage. The flowing stack has an interior passageway extending to the connector at an upper end thereof. The flowing stack has at least one pipe in communication with the interior passageway. The pipe is connected with the diverter line of the capping stack such that a flow fluid passing through the diverter line passes through the pipe into the interior passageway of the flowing stack.