Blowout Preventer Sealing and Gas Detection System
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Solution Overview
Problem
Current blowout preventer systems are susceptible to leaks under high pressure and lack the ability to detect gas buildup at the wellbore, leading to potential oil spills and inadequate emergency containment and recovery measures, especially in deep sea drilling where material failure is common and real-time oil flow regulation is not possible.
Innovation Solution
A system comprising a housing with a receiving and distribution chamber, sealably connected to vertical tubular members, featuring a cone aperture for flow control, valve means for regulating flow, and pump means for facilitating hydrocarbon management, along with sensors for detecting gas buildup and relaying information, which minimizes stress from formation fluid pressure and provides real-time oil flow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blowout preventer systems use multiple interconnected parts with gaskets to seal leakage, then sealing capability is improved, but susceptibility to leaks under high pressure increases due to material failure
Solution Approach 1:
The blowout preventer system is divided into multiple interconnected components (body, piston, gaskets, sealing elements) that work together to create multiple sealing zones. This segmentation allows the system to maintain sealing capability while distributing stress across various elements rather than concentrating it in a single point of failure.
Solution Approach 2:
The system employs composite sealing structures combining multiple materials with different properties - metal components for structural strength, elastomeric gaskets for sealing, and PTFE (Teflon) coatings for low friction and chemical resistance. This composite approach enables the sealing elements to withstand high formation pressures while maintaining their sealing integrity.
2Reliability
If blowout preventer systems are subjected to enormous external hydrostatic pressure and formation fluid pressure, then containment capability is improved, but material failure risk increases
Solution Approach 1:
The system employs a balanced piston mechanism where hydraulic pressure from formation fluids acts on the piston to counterbalance external hydrostatic pressures. This counterweight principle allows the containment structure to withstand enormous pressures by distributing loads through the piston-area differential rather than concentrating stress on single structural elements.
Solution Approach 2:
The blowout preventer incorporates pre-installed sealing elements, gaskets, and stress-distribution features designed to cushion and absorb pressure spikes before they can cause material failure. The system is pre-configured with multiple sealing zones and stress-relief mechanisms that activate automatically when pressure thresholds are exceeded.
3Device complexity
If current blowout preventer systems lack gas detection capability, then system simplicity is maintained, but ability to detect gas buildup and prevent spills deteriorates
Solution Approach 1:
The blowout preventer system integrates multiple functions into a single unified device: mechanical sealing, hydraulic containment, and gas detection. Sensors are incorporated within the existing piston-chamber structure, allowing the same system to perform both containment and detection functions without requiring separate standalone devices, thus maintaining operational simplicity while enhancing safety capabilities.
4Device complexity
If emergency containment systems operate only on on or off basis, then system complexity is reduced, but ability to regulate oil flow in real time deteriorates
Solution Approach 1:
The blowout preventer incorporates dynamic control capabilities through adjustable piston positions and variable aperture openings. The system can transition between fully closed, partially open, and fully open states, allowing real-time regulation of oil and gas flow. Sensors provide continuous feedback on pressure and flow conditions, enabling dynamic adjustment of containment parameters rather than simple on/off control.
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 system effectively diverts and distributes oil flow, relieves excess pressure, prevents hydrate buildup, and enables early detection of gas buildup, ensuring safer drilling operations and more effective emergency response by maintaining standard temperature and pressure conditions.
Implementation Method 1
The system effectively diverts and distributes oil flow, relieves excess pressure
Implementation Method 2
pump means for facilitating hydrocarbon management
Implementation Method 3
valve means for regulating flow
Implementation Method 4
sensors for detecting gas buildup and relaying information
Implementation Method 5
prevents hydrate buildup, and enables early detection of gas buildup, ensuring safer drilling operations by maintaining standard temperature and pressure conditions
Data Source
AI summary
An apparatus for containing and controlling the flow of hydrocarbons from a bore well or other earth formation includes a housing enclosing a receiving and distribution chamber, receiving and distribution chamber is in fluid communication with and sealably connected to a top vertical tubular member and a bottom vertical tubular member, wherein the top and bottom tubular members extend from the receiving and distribution chamber to the exterior of said housing. The apparatus further includes a cone aperture adapted to prevent or allow the flow of liquid into the top tubular member, at least one outlet passage between the receiving and distribution chamber and the exterior of the housing, valve means adapted to permit or prevent the flow of liquid through at least one of said outlet passages, and pump devices adapted to facilitate the flow of hydrocarbons through at least one of said outlet passages.