Guide Vane Insert for Cross-Bore Valve Block Erosion
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Solution Overview
Problem
Conventional flow manifolds in the oil and gas industry face significant erosion issues due to fluid flow, leading to increased size, weight, and cost, as well as potential damage from high-velocity particles, which complicates system design and manufacturing processes.
Innovation Solution
The integration of guide vane inserts within flow bores of valve blocks, featuring vanes extending from a wall into a passageway, which deflects fluid flow to reduce erosion and act as sacrificial elements, thereby minimizing the need for long flow bores and additional corrosion-resistant alloy layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If long straight flow bores or pipes are used to reduce erosion, then erosion resistance is improved, but the footprint and overall size of the flow manifold increases
Solution Approach 1:
The flow manifold is divided into modular units with compact flow bores. Each module handles a portion of the fluid flow, allowing erosion protection without requiring excessively long individual flow paths. The segmentation enables compact arrangement while maintaining sufficient flow length for erosion mitigation.
Solution Approach 2:
The patent employs curved and optimized flow bore geometries instead of purely straight paths. The curved flow bores reduce erosion by distributing flow stresses more evenly while achieving the required effective flow length within a compact footprint, eliminating the need for long straight sections.
2Reliability
If long straight flow bores or pipes are used to reduce erosion, then erosion resistance is improved, but the manufacturing cost increases
Solution Approach 1:
By segmenting the flow manifold into standardized modules, manufacturing becomes more efficient through repetition and economies of scale. Each module can be manufactured independently with optimized flow bores, reducing overall manufacturing complexity and cost compared to a single large structure requiring long flow paths.
Solution Approach 2:
The patent optimizes flow bore parameters (diameter, curvature, length) to achieve erosion resistance without excessive length. By changing the geometric parameters to curved paths and modular dimensions, the effective flow length for erosion protection is achieved while keeping manufacturing costs reasonable through efficient material usage and standardized production.
3Ease of operation
If cross-drills intersections are added to long straight flow bores, then flow distribution is improved, but excessive erosion occurs at intersection points
Solution Approach 1:
The patent applies different geometric characteristics to different locations within the flow manifold. At cross-drill intersection points, the flow bore geometry is locally optimized with curved transitions and enlarged radii to reduce flow velocity and turbulence, thereby minimizing erosion at these critical locations while maintaining effective flow distribution.
Solution Approach 2:
Curved flow bores with optimized radii are used at intersection points to replace sharp angles. The curvature distributes flow stresses more evenly and reduces turbulence-induced erosion at cross-drill locations, while still achieving the required flow distribution to multiple outlets.
4Reliability
If CRA layer with increased thickness is applied to flow bores, then erosion resistance is improved, but the weight and cost of the flow manifold increases
Solution Approach 1:
The flow manifold is segmented into modules, allowing selective application of CRA layers only at critical erosion zones rather than uniformly throughout. This targeted approach reduces overall material usage and weight while maintaining erosion resistance where most needed.
Solution Approach 2:
The CRA layer thickness is varied locally based on erosion risk. Thinner or no CRA coating is applied in low-risk areas, while thicker protection is applied only at high-velocity zones and intersection points. This localized quality approach reduces total material consumption and weight while maintaining adequate erosion resistance.
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
This solution significantly reduces erosion rates, decreases the complexity and weight of valve blocks, and lowers manufacturing costs, while maintaining equipment functionality and extending its operational lifespan.
Implementation Method 1
The at least one insert may include a wall contacting an inner surface of the first flow bore or the second flow bore, a passageway defined within the wall and having openings at opposite ends of the insert, and a plurality of vanes extending from an inner surface of the wall into the passageway
Data Source
AI summary
A valve block may have a cross-drill intersection bore formed within the valve block by a first flow bore intersecting a second flow bore. Additionally, at least one insert may be within the first flow bore or the second flow bore. The at least one insert may include a wall contacting an inner surface of the first flow bore or the second flow bore, a passageway defined within the wall and having openings at opposite ends of the insert, and a plurality of vanes extending from an inner surface of the wall into the passageway. The one of the opposite ends of the at least one insert may align with a surface of the cross-drill intersection bore. The at least one insert may reduce and/or protect the bores within the valve block from erosional damage.