Rotating Collection Pipe Control in Well Fluid Separators
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Solution Overview
Problem
Existing separators for well fluids are inefficient in separating and removing constituents, particularly due to fixed weir barriers that do not optimally adjust to fluid interface levels, leading to non-optimized retention times and increased environmental risks.
Innovation Solution
A gravity-based separator with a rotating collection pipe and positioner that adjusts the opening height based on detected fluid parameters, allowing for precise removal of a first fluid constituent while minimizing retention time and preventing accidental release of second constituents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed collection pipe is used in the separator, then the structure is simple, but the separation efficiency is reduced due to non-optimal retention times and inability to adapt to varying fluid parameters
Solution Approach 1:
The collection pipe is made rotatable about a vertical axis, transforming it from a fixed static structure to a dynamic adjustable one. This allows the opening height to be changed based on detected fluid parameters, optimizing retention time and separation efficiency while adapting to varying well fluid conditions
Solution Approach 2:
A detection system monitors fluid parameters and provides feedback to control the rotation of the collection pipe. This closed-loop control enables the separator to automatically adjust the collection pipe opening height to optimal positions, maximizing separation efficiency while preventing accidental release of constituents
2Adaptability or versatility
If the collection pipe opening height is fixed, then the device operation is simple, but the separator cannot adapt to varying fluid ratios and flow rates
Solution Approach 1:
The separator system performs self-adjustment through automated detection and control mechanisms. The system monitors fluid parameters and automatically rotates the collection pipe to optimal positions without requiring manual intervention, maintaining ease of operation while achieving high adaptability to varying well fluid conditions
Solution Approach 2:
The collection pipe transitions from a fixed to a dynamically adjustable component, enabling the separator to adapt to different fluid ratios, flow rates, and constituent compositions. This dynamic adjustment capability allows the system to optimize performance across a wide range of operating conditions
3Speed
If gravity-based separation is used, then the separation process is simple and energy-efficient, but the separation speed is slow and retention time is excessive
Solution Approach 1:
The system performs preliminary action by detecting fluid parameters and pre-positioning the collection pipe opening at the optimal height before separation begins. This ensures that the separator is optimally configured from the start, reducing the time required for separation while maintaining the energy efficiency of gravity-based operation
Solution Approach 2:
The system changes the operational parameter of collection pipe opening height based on detected fluid parameters. By optimizing this parameter, the separator achieves faster separation speeds while maintaining gravity-based operation to minimize energy consumption
4Productivity
If the collection pipe opening is positioned for rapid removal of first constituent, then productivity increases, but there is risk of accidental release of second constituent
Solution Approach 1:
The detection system continuously monitors fluid parameters and provides feedback to control the collection pipe position. This real-time feedback ensures that the opening height is optimally positioned for rapid removal of the first constituent while maintaining a safety margin to prevent accidental release of the second constituent, thus achieving both high productivity and reliability
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
Enhances separation efficiency by optimizing retention times and reducing environmental risks through controlled fluid removal across varying flow rates and constituent ratios, improving well clean-up and production efficiency.
Implementation Method 1
Gravity segregation in many designs is the main force that accomplishes the separation within the separator, which means the heaviest fluid settles to the bottom of the separator and the lightest fluid rises to the top of the separator
Data Source
AI summary
A separator for separating constituents of well fluid produced by a well is provided. The separator includes a vessel for receiving well fluid such that a first fluid constituent overlies a second fluid constituent within the vessel, a collection pipe having an opening for collecting a first fluid constituent from the vessel, and a positioner connected to the collection pipe for rotating the collection pipe about an axis to adjust a height of the opening within well fluid in the vessel. A method and system are also provided.