Wellbore Intervention Tool with Adjustable Cutter and Sweeper
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Solution Overview
Problem
Existing methods for penetrating wellbore obstructions, such as collapsed sections or stuck tools, are often ineffective and lack guaranteed success, particularly when using traditional milling tools or heavier intervention apparatus.
Innovation Solution
A wellbore intervention tool equipped with a cutting tool featuring rotating cutter members and a displacement mechanism, coupled with a sweeper that allows for angular or linear adjustment and deflection, enabling efficient penetration and milling of obstructions by adjusting the cutting position and applying axial force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional milling tools or heavier intervention apparatus are used to penetrate wellbore obstructions, then penetration capability is improved, but reliability of successful penetration deteriorates
Solution Approach 1:
The cutting tool is made dynamically adjustable through the displacement mechanism, allowing real-time modification of cutting position and angle relative to the tool axis. This enables adaptation to varying obstruction characteristics during penetration, improving both penetration capability and reliability by optimizing cutting conditions dynamically rather than using fixed traditional milling tools
Solution Approach 2:
The invention changes the parameters of the cutting operation by allowing adjustment of the cutting tool's position and orientation through the displacement mechanism. This enables modification of cutting depth, angle, and location to match specific obstruction properties, thereby achieving reliable penetration across different obstruction types without requiring heavier apparatus
2Device complexity
If the cutting tool is fixed in position, then device complexity is reduced, but adaptability to different obstruction positions deteriorates
Solution Approach 1:
The displacement mechanism introduces dynamic adjustability to the cutting tool position, allowing it to move along the tool axis and change orientation. This dynamic capability provides adaptability to different obstruction positions and configurations while maintaining a relatively simple overall device structure through mechanical actuation rather than complex control systems
3Ease of operation
If the cutting tool operates in a fixed position, then ease of operation is improved, but productivity of obstruction removal deteriorates
Solution Approach 1:
The displacement mechanism enables dynamic adjustment of the cutting tool during operation, allowing optimization of cutting parameters for different obstruction conditions. This increases penetration speed and productivity by adapting to varying material hardness and geometry, while the mechanism remains simple enough to maintain ease of operation through straightforward mechanical control
Solution Approach 2:
By allowing changes in cutting position, depth, and angle through the displacement mechanism, the system can optimize cutting parameters for maximum material removal rate. This increases productivity by adapting to different obstruction characteristics while maintaining operational simplicity through mechanical adjustment capabilities
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 tool effectively penetrates and removes obstructions, reducing the risk of 'kickback' and improving penetration speed and efficiency, allowing for successful access or retrieval of wellbore components.
Implementation Method 1
mechanically mill away, or to disintegrate, an obstruction
Implementation Method 2
rotating cutter member for penetrating the obstruction
Data Source
Figure 1~2
Figure 2A~3
Figure 4
AI summary
A wellbore intervention tool for use in penetrating an obstruction in a wellbore includes a cutting tool having at least one rotating cutter member for penetrating the obstruction. A displacement mechanism coupled to the cutting tool sets and adjusts a cutting position of the cutting tool relative to a tool axis. A sweeper coupled to the displacement mechanism deflects the displacement mechanism about the tool axis, and the cutting tool is deflected with the displacement mechanism.