Cyclonic-Gravitational Fluid Separator with Adjustable Apertures
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Solution Overview
Problem
Current fluid separation systems in oil and gas production, such as cyclone separators, do not effectively separate mixtures of oil, gas, water, and solids, leading to inefficiencies and operational challenges, particularly in offshore environments where space is limited and separation equipment is difficult to implement.
Innovation Solution
A fluid treatment system combining a cyclonic separator with a gravitational separating chamber, where the cyclonic separator induces centrifugal forces to separate lighter phases from heavier phases, and the gravitational chamber further separates heavier fluids and solids, with adjustable apertures controlling the re-entry of lighter fluids into the cyclonic separator to optimize the separation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If cyclone separators are used for rapid removal of oil from water, then separation speed is improved, but separation effectiveness deteriorates leading to solids and water being drawn up the oil production line
Solution Approach 1:
The system divides the separation process into two distinct stages: a cyclone separator for rapid initial separation and a gravitational separator for final effective separation. The cyclone separator handles the speed-critical initial separation, while the gravitational separator ensures effectiveness by removing remaining water and solids before oil exits through the production line.
Solution Approach 2:
The patent combines two different separation mechanisms (cyclonic and gravitational) into a single integrated system. The cyclone separator and gravitational separator work together synergistically, with the cyclone providing rapid separation and the gravitational separator providing final polishing, thus achieving both speed and effectiveness.
2Reliability
If large separator tanks are used to remove oil from water, then separation effectiveness is improved, but device footprint increases making implementation difficult in offshore environments
Solution Approach 1:
The cyclone separator is positioned inside the gravitational separator housing, with the cyclone separator occupying the central region and the gravitational separator utilizing the annular space between the cyclone separator and the housing wall. This nested arrangement allows both separation mechanisms to function simultaneously within a compact footprint.
Solution Approach 2:
The system transitions from traditional horizontal arrangement of separate separators to a vertical three-dimensional integration where the cyclone separator is nested within the gravitational separator housing, utilizing vertical space to reduce the horizontal footprint while maintaining effective separation capacity.
3Reliability
If combined cyclone and gravitational separator systems are used, then separation efficiency is enhanced, but control of separation performance becomes difficult
Solution Approach 1:
The system incorporates a controllable flow restriction device that monitors and adjusts the flow rate of fluid from the cyclone separator to the gravitational separator. This feedback control mechanism allows operators to optimize the split between the two separation stages, ensuring that the cyclone receives sufficient flow for rapid separation while the gravitational separator receives the appropriate amount for effective final separation.
Solution Approach 2:
The system uses a dynamically adjustable flow restriction device rather than fixed openings, allowing the flow distribution between cyclone and gravitational separator to be adjusted in real-time based on operating conditions. This dynamic control enables optimization of separation performance across varying flow rates and fluid compositions.
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 system enhances the control and effectiveness of fluid separation, allowing for efficient and rapid separation of mixtures, improving operational efficiencies by optimizing the split of fluid components and controlling the separation performance through adjustable apertures and geometry, thereby addressing the limitations of existing systems.
Implementation Method 1
cyclone separators... operate by creating a centrifugal force as a fluid mixture of water and oil enters the hydrocyclone through a tangential inlet. The centrifugal force directs the heavier water phase toward the edges of the hydrocyclone, while the lighter oil phase is retained at the centre of the hydrocyclone.
Implementation Method 2
the gravitational chamber further separates heavier fluids and solids
Data Source
AI summary
A fluid treatment system combines cyclonic separators and gravitational separators for use in onshore and offshore oil and gas operations and elsewhere. The characteristics of apertures that interface between a gravitational separation chamber and a cyclonic separator are configurable in accordance with operational requirements. By selecting aperture characteristics, improved control and separation efficiencies can be achieved.