RF Hydrocarbon Upgrading System Viscosity Reduction
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Solution Overview
Problem
Current hydrocarbon resource extraction methods, such as Steam-Assisted Gravity Drainage (SAGD), face challenges like long production times, significant heat loss, excessive steam consumption, high costs, and environmental impact due to water usage, especially in regions like permafrost areas or those with thin payzones or shale layers, and require additional processing for recovered oil with unique chemical or physical traits.
Innovation Solution
A radio frequency (RF) hydrocarbon resource upgrading system that includes RF power applicator stages within pipeline segments, using an inner tubular dielectric coupler and an electrically conductive outer housing to apply RF energy at specific frequencies and power levels to upgrade hydrocarbon resources, reducing viscosity and improving processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Steam-Assisted Gravity Drainage (SAGD) is used to extract heavy oil, then oil recovery is achieved, but production time is extended and heat loss increases
Solution Approach 1:
The patent replaces the thermal heating mechanism of SAGD with radio frequency electromagnetic heating. Instead of injecting steam to heat the heavy oil, the system uses RF energy applied through wellbores to directly heat and reduce the viscosity of the hydrocarbon resource, thereby accelerating the extraction process and reducing production time.
Solution Approach 2:
The patent changes the heating method from thermal conduction (steam injection) to electromagnetic heating (radio frequency). This parameter change in the heating mechanism allows for more efficient and faster heating of the heavy oil, reducing the time required for oil recovery while maintaining effectiveness.
2Productivity
If Steam-Assisted Gravity Drainage (SAGD) is used to extract heavy oil, then oil recovery is achieved, but steam consumption increases
Solution Approach 1:
The patent substitutes the steam injection system with a radio frequency heating system. Instead of consuming large quantities of steam to heat the heavy oil, the system uses electromagnetic energy directly applied to the hydrocarbon resource, significantly reducing substance consumption while maintaining oil recovery effectiveness.
Solution Approach 2:
The patent extracts and eliminates the need for steam as a heating medium. By using radio frequency energy directly in the wellbores, the system removes the dependency on steam injection, thereby reducing water consumption and the associated environmental impacts.
3Productivity
If conventional heating methods are used to reduce hydrocarbon viscosity, then oil flow is improved, but processing temperature must be high
Solution Approach 1:
The patent replaces conventional thermal heating with radio frequency electromagnetic heating. This substitution allows for more efficient and targeted heating of the hydrocarbon resource, reducing the overall processing temperature required while still achieving sufficient viscosity reduction for improved oil flow.
Solution Approach 2:
The patent utilizes radio frequency electromagnetic waves to create vibrational energy in the hydrocarbon molecules, which generates internal heating more efficiently than conventional thermal conduction. This vibrational heating mechanism achieves better viscosity reduction at lower processing temperatures.
4Productivity
If heavy oil is transported through pipeline, then resource delivery is achieved, but additional processing is required due to unique chemical or physical traits
Solution Approach 1:
The patent applies radio frequency heating and viscosity reduction treatment to the heavy oil in the wellbores before it enters the pipeline. This preliminary action prepares the hydrocarbon resource by reducing its viscosity and improving its flow characteristics, thereby simplifying subsequent pipeline transport and reducing the need for additional processing equipment.
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
The RF upgrading system efficiently reduces hydrocarbon viscosity and improves processing efficiency, allowing for lower temperature processing, reduced costs, and enhanced oil quality, enabling longer pipeline transport and refining without the need for diluents, thus addressing the limitations of traditional methods.
Implementation Method 1
an RF applicator comprising an inner tubular dielectric coupler between the pair of pipeline segments, and an electrically conductive outer housing surrounding the inner tubular dielectric coupler
Implementation Method 2
an RF source coupled to the electrically conductive outer housing and having an operating frequency and power to upgrade the hydrocarbon resource
Data Source
AI summary
A device for transporting and upgrading a hydrocarbon resource may include a pair of pipeline segments configured to transport the hydrocarbon resource therethrough and a radio frequency (RF) upgrading device. The RF upgrading device may include an RF applicator comprising an inner tubular dielectric coupler between the pair of pipeline segments, and an electrically conductive outer housing surrounding the inner tubular dielectric coupler. The RF upgrading device may also include an RF source coupled to the electrically conductive outer housing and having an operating frequency and power to upgrade the hydrocarbon resource.