Downhole Sand and Gas Separator With Radial Openings
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Solution Overview
Problem
Existing solutions for separating gas and solids from fluids produced in oil and gas wells are complex and expensive, leading to reduced equipment lifespan.
Innovation Solution
A downhole separator with a tubular body, radial directed openings, and a dip tube to separate three-phase fluids into gas, liquid, and solid components, utilizing annulus areas to manage flow velocities for efficient separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complicated and expensive equipment is used to separate gas and solids from fluids, then separation efficiency is improved, but device complexity and cost increase
Solution Approach 1:
The separator is divided into distinct functional zones: an upper separation section with radial openings for gas-solid separation, and a lower pumping section with a dip tube for liquid withdrawal. This segmentation allows each zone to perform its specific function efficiently without requiring complex integrated systems.
Solution Approach 2:
The harmful components (gas and solids) are extracted and removed from the fluid stream through the radial openings in the upper section. By separating and removing these components at the source, the downstream equipment is protected without requiring complex protection systems.
2Reliability
If conventional separation equipment is used, then gas and solids are separated from fluids, but the run life of downstream equipment is shortened due to complexity and cost
Solution Approach 1:
The separator performs self-service by automatically separating gas and solids from the liquid stream through its simple geometric structure. The radial openings and dip tube configuration create natural flow patterns that separate phases without requiring additional control systems, sensors, or complex mechanisms, thereby extending equipment lifespan through simplicity.
3Device complexity
If a simple separator design is used, then device complexity is reduced, but separation efficiency may be compromised
Solution Approach 1:
The separator utilizes changes in flow parameters (velocity, direction) as the fluid moves through different sections. The radial openings create a transition from axial to radial flow, allowing gas and solids to separate under changing flow conditions. This parameter-based separation achieves efficient separation with simple geometric features rather than complex mechanisms.
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
Efficiently separates gas and solids from fluids, protecting downstream equipment by reducing harmful exposure, thus extending its operational life.
Implementation Method 1
a dip tube disposed inside the tubular body for delivering a primarily liquid component of the three-phase fluid to be processed
Implementation Method 2
a radial directed opening in an uphole end of the tubular body for allowing the three-phase fluid to enter the downhole separator while also permitting a gas component of the three-phase fluid to exit the downhole separator
Data Source
AI summary
A downhole separator for separating a three-phase fluid produced in an oil or gas well. The downhole separator including a tubular body and a radial directed opening in an uphole end of the tubular body for allowing the three-phase fluid to enter the downhole separator while also permitting a gas component of the three-phase fluid to exit the downhole separator. The downhole separator also including a dip tube disposed inside the tubular body for delivering a primarily liquid component of the three-phase fluid to be processed and a first annulus area disposed between the dip tube and the tubular body. A method of separating components of a three-phase fluid produced in an oil or gas well. The method includes the step of pumping the three-phase fluid into a downhole separator to separate the three-phase fluid into the separate components.