Bridge Concentric Water Distributor for High-Inclination Wells
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Solution Overview
Problem
Conventional eccentric layered water injection processes in high-inclination wells face difficulties in dropping and pulling stoppers and mating in-well instruments, making testing and adjustment challenging.
Innovation Solution
A bridge concentric continuously adjustable water regulator is designed with an outer tube, adjusting sleeve, concentric valve, water outlet, lower sealed section, and bridge passages, allowing for easy mating of concentric tubular columns and auxiliary flow passages to facilitate independent layer testing and adjustment without affecting adjacent layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional eccentric layered water injection process is used, then water injection can be performed in high-inclination wells, but it is difficult to perform dropping and pulling of stopper and mating of in-well instruments
Solution Approach 1:
The patent inverts the conventional eccentric structure by using a concentric valve design where the valve body and valve core are both centered on the same axis. This inversion simplifies the structural complexity while improving operational ease for dropping and pulling stoppers and mating instruments in high-inclination wells.
Solution Approach 2:
The device is segmented into distinct functional components including the outer tube, inner tube, concentric valve, bridge passage, and sealed sections. This segmentation allows independent testing and adjustment of each layer without affecting others, simplifying operations in high-inclination wells.
2Measurement precision
If conventional water injection process is used, then water flooding can be performed, but testing and adjustment of water flooding rate is difficult without affecting adjacent layers
Solution Approach 1:
The device divides the water injection system into separate sealed sections for different layers, with bridge passages providing auxiliary flow paths. This segmentation enables independent testing and adjustment of water flooding rates for each layer without affecting adjacent layers, achieving precise measurement while maintaining manageable system complexity.
Solution Approach 2:
The bridge passage acts as an intermediary component that provides auxiliary flow passages between layers. This mediator allows testing and adjustment operations on one layer to proceed without disrupting the water flow of adjacent layers, enabling precise measurement with reduced operational complexity.
3Adaptability or versatility
If concentric valve with bridge passage is used, then auxiliary flow passages are provided for independent layer testing, but device structure becomes more complex
Solution Approach 1:
The concentric valve design nests the inner tube within the outer tube, with the bridge passage integrated into the wall of the outer tube. This nesting arrangement provides auxiliary flow passages for independent layer testing while maintaining a compact structure that does not excessively increase overall device complexity.
Solution Approach 2:
The concentric valve structure serves multiple functions: it controls water flow to the concentric valve, provides auxiliary flow passages through bridge passages, and enables independent testing of different layers. This multi-functionality increases adaptability while the integrated design keeps structural complexity manageable.
4Measurement precision
If multiple sealed sections and bridge passages are added, then flow-carrying influence is reduced for accurate single layer testing, but manufacturing complexity increases
Solution Approach 1:
The device is manufactured as segmented components including upper and lower outer tubes, inner tubes, and sealed sections that can be produced separately and then assembled through threaded connections. This segmentation improves measurement precision for single layer flow rate while facilitating easier manufacturing of individual components.
Solution Approach 2:
The threaded connection design between upper and lower outer tubes allows separate manufacturing of sections that can be precisely machined independently, then assembled with standardized threading. This approach maintains high measurement precision while improving ease of manufacture through modular production.
Data Source
AI summary
A bridge concentric continuously adjustable water regulator comprising: an outer tube; an adjusting sleeve disposed in the outer tube; a concentric valve connected below the adjusting sleeve, with a center of circle of the concentric valve being concentric to the outer tube; a water outlet which runs through a side wall of the outer tube and is connected to the concentric valve; a lower sealed section which is disposed in the outer tube and is below the concentric valve and the water outlet; and a bridge passage disposed in the side wall of the outer tube and outside the concentric valve and the lower sealed section.