Modular Diverter and Annular BOP Connector for Offshore Drilling
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Solution Overview
Problem
Offshore oil and gas drilling operations face challenges in reducing equipment complexity within limited size and weight constraints, particularly in the moon pool area, where existing systems are cumbersome and difficult to maintain.
Innovation Solution
A modular diverter system incorporating an annular blowout preventer joint and diverter assembly that can be assembled on-site, allowing for temporary blocking or diversion of fluid flow, and includes features like elastomer sealing, auxiliary lines, and a connector system to support and divert fluids efficiently, enabling maintenance and reducing equipment size and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional blowout preventer stacks and riser systems are used, then well bore pressure control and fluid diversion capabilities are achieved, but equipment complexity and size increase significantly
Solution Approach 1:
The system is divided into separate functional modules: an annular BOP joint with sealing capabilities, a diverter joint with flow diversion paths, and a connector for assembly. This segmentation allows each component to perform its specific function efficiently while reducing overall system complexity and facilitating easier maintenance and replacement of individual parts.
Solution Approach 2:
The connector enables nested assembly where the diverter joint and annular BOP joint are coupled together to form an integrated unit. This nesting approach consolidates multiple functions into a compact configuration, reducing the spatial footprint and complexity compared to traditional separate installations.
2Reliability
If traditional blowout preventer stacks are used, then pressure control functionality is achieved, but size and weight constraints in moon pool area are violated
Solution Approach 1:
By segmenting the system into modular joints (annular BOP joint, diverter joint, connector), the overall weight and size are distributed and reduced compared to a monolithic blowout preventer stack. This allows the equipment to fit within the constrained moon pool area while maintaining full pressure control functionality.
Solution Approach 2:
The annular BOP joint and diverter joint are merged into a coupled assembly, eliminating the need for separate installations and reducing total equipment size and weight. This integrated design maintains both pressure control and fluid diversion capabilities in a compact configuration suitable for offshore moon pool environments.
3Adaptability or versatility
If complex equipment systems are installed, then comprehensive functionality is achieved, but maintenance difficulty increases
Solution Approach 1:
The modular joint design with standardized connectors enables easy disassembly and maintenance of individual components. The annular BOP joint, diverter joint, and connector can be independently inspected, repaired, or replaced without affecting the entire system, significantly improving ease of maintenance while preserving comprehensive functionality.
Solution Approach 2:
The universal connector design allows the same joint configuration to serve multiple functions (pressure control, fluid diversion, assembly). This multi-functionality reduces the number of different component types needed, simplifying maintenance procedures and reducing the skill level required for repairs.
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 modular system simplifies equipment configuration, reduces maintenance needs, and increases the longevity of seals, while allowing for flexible operation and maintenance, thus addressing the complexity and size constraints in offshore drilling environments.
Implementation Method 1
an elastomer sealing element positioned within the outer body that is collapsible to seal internally within the outer body
Data Source
AI summary
A connector for receiving flow therethrough includes a body with a seat including a keyed groove, a stab including a key, and a locking member to retain the key within the keyed groove of the seat.