Adjustable Damper for Downhole Tool Assembly
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Solution Overview
Problem
Existing downhole tools face challenges in assembly and disassembly due to the need for strong connections during use while allowing clearance during assembly, which can lead to damage from shock and vibration.
Innovation Solution
The implementation of an adjustable damper positioned between the interior component and the protective housing, which is electrically adjustable to change its size in a transverse direction, allowing for easier assembly and disassembly by reducing the friction force and eliminating the need for excessive radial dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a strong connection is used between the interior component and protective housing during use, then the connection strength is improved, but the assembly and disassembly becomes difficult and may cause damage from shock and vibration
Solution Approach 1:
The damper is designed with adjustable radial dimensions that can be modified during assembly and operation. The damper includes a compressible portion that allows the radial dimension to be reduced for easy assembly and disassembly, while maintaining sufficient connection strength during use. This dynamic adjustment capability resolves the contradiction between strong connection and ease of assembly.
Solution Approach 2:
The damper's radial dimension is made variable through the use of compressible materials and adjustable mechanisms. By changing the radial dimension parameter, the damper can provide strong connection during operation but allow easy assembly and disassembly when needed, thus resolving the technical contradiction.
2Strength
If the damper radial dimension is increased to provide strong connection, then the connection strength is improved, but the assembly force required increases and may cause damage
Solution Approach 1:
The damper incorporates a compressible portion that allows the radial dimension to be dynamically adjusted. During assembly, the radial dimension can be reduced to minimize assembly force, while during operation, the damper maintains sufficient compression to provide strong connection. This dynamic capability reduces the peak forces required during assembly.
Solution Approach 2:
The compressible portion of the damper acts as a cushioning element that absorbs shock and vibration during assembly and operation. This beforehand cushioning protects the interior component and housing from damage by reducing peak forces and vibrations that could otherwise cause harm.
3Ease of operation
If the damper radial dimension is reduced to facilitate assembly, then the assembly ease is improved, but the connection strength during use may be insufficient
Solution Approach 1:
The damper is designed with a compressible portion that allows the radial dimension to be reduced during assembly for ease of insertion, while automatically maintaining sufficient connection strength during operation through the elastic recovery of the compressible material. This dynamic adjustment ensures both easy assembly and strong connection.
4Strength
If excessive radial dimensions are used in the damper, then the connection strength is improved, but the device complexity and space requirements increase
Solution Approach 1:
The damper uses compressible materials and adjustable designs that allow the radial dimension to be optimized. By changing the material properties and structural parameters, the damper achieves sufficient connection strength with minimized radial dimensions, reducing device complexity and space requirements while maintaining performance.
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 solution enables faster, easier, and safer assembly and disassembly of downhole tools by reducing the longitudinal force required, thereby minimizing the risk of damage from shock and vibration.
Implementation Method 1
an adjustable damper positioned between the ID surface and the OD surface and configured to change size in a transverse direction perpendicular to a longitudinal axis of the interior component
Data Source
AI summary
A device may include an interior component having an outer diameter (OD) surface. A device may include a protective housing positioned around at least a portion of the interior component and having an inner diameter (ID) surface proximate the OD surface of the interior component. A device may include an adjustable damper positioned between the ID surface and the OD surface and configured to change size in a transverse direction perpendicular to a longitudinal axis of the interior component.