Selective Magnetic Positioning Tool for Downhole Actuation
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Solution Overview
Problem
Existing downhole tools in hydrocarbon wells face challenges in precise interaction and control due to accidental actuation of multiple tools with similar mechanisms, leading to unintended movement and functionality changes.
Innovation Solution
A magnetic positioning tool with a plurality of magnets arranged in various configurations, including Halbach Arrays, is used to selectively interact with downhole components, allowing for precise actuation and positioning without inadvertently affecting other tools, by generating a magnetic field that can be directed to engage or disengage with specific tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magnetic positioning tool uses a magnetic field to actuate downhole components, then the ability to interact with tools is improved, but the risk of accidental actuation of multiple tools increases
Solution Approach 1:
The patent applies local quality by configuring magnets in specific patterns (such as Halbach Arrays) that concentrate magnetic field strength at particular locations. This allows the magnetic positioning tool to selectively actuate only the intended downhole component by positioning the high-field region precisely where needed, while minimizing magnetic field exposure to other tools in the wellbore, thereby preventing accidental actuation.
Solution Approach 2:
The patent segments the magnetic field interaction by using multiple magnets arranged in specific configurations rather than a single magnetic source. This segmentation allows different regions of the magnetic field to be independently controlled or directed at different times, enabling selective actuation of specific downhole components while leaving others unaffected.
2Adaptability or versatility
If multiple downhole tools are present in the wellbore, then the functionality and control options are improved, but the difficulty of selectively actuating specific tools increases
Solution Approach 1:
The patent employs magnetic field patterns as a form of 'magnetic signature' or identification code, analogous to color changes. Different downhole components can be designed with unique magnetic characteristics or response patterns, allowing the magnetic positioning tool to identify and selectively actuate specific tools by detecting their unique magnetic signatures, even when multiple tools are present in the wellbore.
Solution Approach 2:
The patent incorporates feedback mechanisms where the magnetic positioning tool can detect the presence, position, and magnetic characteristics of downhole components. This feedback information is used to adjust the magnetic field configuration in real-time, enabling the system to identify the target component and apply magnetic actuation forces only to the intended tool, thereby simplifying selective actuation among multiple tools.
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 magnetic positioning tool enables precise control and actuation of downhole components, reducing accidental interactions and allowing for selective engagement with specific tools, enhancing operational efficiency and safety in wellbore operations.
Implementation Method 1
A magnetic positioning tool with a plurality of magnets arranged in various configurations, including Halbach Arrays, is used to selectively interact with downhole components, allowing for precise actuation and positioning by generating a magnetic field that can be directed to engage or disengage with specific tools
Data Source
AI summary
A method of actuating a downhole component comprises positioning a magnetic positioning tool adjacent an actuable component within a wellbore, where the magnetic positioning tool comprises a plurality of magnets arranged in a first position, transitioning the plurality of magnets from the first position to a second position, detecting the plurality of magnets using a sensor associated with the actuable component, generating a signal indicative of the plurality of magnets being in the second position, and actuating the actuable component within the wellbore in response to the signal.