Subsea Manifold Layout With Parallel Headers to Cut Leakage Points
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Solution Overview
Problem
Conventional subsea equipment for connecting multiple flowlines is complex, leading to increased manufacturing time, transportation challenges, and higher installation costs due to the large number of components and potential leakage points, especially at greater depths.
Innovation Solution
The equipment is redesigned with two parallel manifolds interconnected by a jumper, reducing the number of components such as connection elements, block valves, and PLETs, and utilizing a single-block machining process for production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional subsea equipment with multiple manifolds and connection elements is used, then fluid flow control functionality is achieved, but device complexity and number of components increase
Solution Approach 1:
The patent combines multiple manifolds and connection elements into a single integrated manifold body with multiple headers. The manifold body integrates fluid control functions, connection points for subsea lines, and support structures into one unified component, eliminating the need for separate manifolds and reducing the overall number of parts while maintaining full fluid flow control capability
Solution Approach 2:
The single manifold body performs multiple functions simultaneously: it serves as a fluid distribution hub with multiple headers for different flowlines, provides structural support for subsea lines, incorporates block valves for flow control, and acts as a mounting platform for connection equipment. This multi-functionality reduces device complexity while maintaining adaptability
2Adaptability or versatility
If multiple separate components (manifolds, jumpers, connectors, PLETs) are used, then fluid import and export functionality is achieved, but manufacturing time and installation time increase
Solution Approach 1:
The patent merges manifolds, jumpers, and connector functions into a single integrated manifold body. This consolidation reduces the number of separate manufacturing processes and assembly steps required, significantly decreasing both manufacturing time and on-site installation time while preserving complete fluid import and export functionality through the multiple headers
3Adaptability or versatility
If numerous connection elements and welded pipe sections are used, then fluid distribution capability is achieved, but potential leakage points increase
Solution Approach 1:
The patent consolidates multiple connection elements into a single monoblock manifold body, eliminating numerous welded joints and connection interfaces that serve as potential leakage points. The integrated design maintains fluid distribution capability through internal passages and headers while significantly improving reliability by reducing the number of potential failure points
4Strength
If heavy metal structures and multiple components are used, then structural strength to withstand line weight is achieved, but equipment weight increases
Solution Approach 1:
The patent integrates multiple structural components into a single optimized manifold body design. This consolidation allows for more efficient structural distribution and material usage, reducing overall equipment weight while maintaining the necessary structural strength to withstand line weights and operational loads through the integrated foundation structure and support elements
Data Source
AI summary
A subsea equipment includes two manifolds for fluid import and export from oil wells. The first and second manifolds are arranged in parallel and are interconnected by a jumper. The first manifold includes all equipment for field flow control, such as, for example, selection valves, actuators or robot for remote operations and mandrels for connection to the Christmas trees. The second manifold includes only block valves and mandrels for future interconnection or interconnection to the first manifold.