Resonance Rotary Drilling Control for Varying Rock Types
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Solution Overview
Problem
Existing resonance enhanced rotary drilling technologies face challenges in achieving high frequencies and maintaining resonance across varying rock types, leading to inefficiencies and increased wear on drilling equipment, particularly in deep-hole drilling applications.
Innovation Solution
A method utilizing a fuzzy logic model to control resonance enhanced rotary drilling, which includes measuring current drilling parameters, calculating material characteristics, and adjusting drilling parameters in real-time to optimize drilling efficiency and reduce wear, by employing sensors and controllers to continuously adjust frequency and stroke of percussion forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of percussion frequency and stroke is used, then operator simplicity is maintained, but resonance cannot be easily achieved and maintained across varying rock types
Solution Approach 1:
The patent implements a feedback control system where down-hole sensors continuously monitor drilling parameters and material characteristics, and this information is transmitted to the surface control system that automatically adjusts percussion frequency and stroke to maintain resonance conditions across varying rock types
Solution Approach 2:
The patent replaces manual mechanical control with an automated electronic control system that uses sensors, signal processing, and actuators to dynamically adjust drilling parameters based on real-time feedback from the drilling environment
2Device complexity
If low frequency hydraulic periodic impactor is used, then device simplicity is maintained, but high frequencies required for resonance enhanced drilling cannot be attained
Solution Approach 1:
The patent employs a dynamically adjustable percussion mechanism that can vary both frequency and stroke independently, allowing the system to achieve high frequencies required for resonance enhanced drilling while maintaining adaptability to different rock types through real-time parameter adjustment
Solution Approach 2:
The patent implements a control system that dynamically changes the operational parameters (frequency and stroke) of the percussion mechanism based on real-time feedback from down-hole sensors, enabling the system to attain and maintain high frequencies necessary for resonance enhanced drilling across varying geological conditions
3Adaptability or versatility
If automated feedback control with down-hole sensors is implemented, then resonance can be maintained across varying rock types, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a unified control system where down-hole sensors simultaneously monitor both material characteristics and drilling parameters, and the surface control system processes this information to automatically adjust percussion parameters for maintaining resonance across diverse rock types
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 approach significantly enhances drilling efficiency, reduces wear on equipment, and allows for precise control of resonance enhanced drilling through varying rock types, leading to faster and more cost-effective drilling operations.
Implementation Method 1
Resonance enhanced rotary drilling is a special type of percussion rotary drilling in which there is an oscillator vibrating at high frequency so as to achieve resonance with the material being drilled
Implementation Method 2
The down-hole sensors may be piezoelectric sensors
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3
AI summary
Provided is a method for controlling a resonance enhanced rotary drill comprising a drilling module and a control system for controlling one or more drilling parameters of the drilling module, which method comprises: (a) employing one or more initial characteristics of the material being drilled, and/or one or more initial drilling parameters to control the drilling module; (b) measuring one or more current drilling parameters to obtain one or more measured drilling parameters; (c) employing the one or more measured drilling parameters as an input in the control system, in order to obtain an output from the control system, which output comprises one or more calculated characteristics of the material being drilled; (d) employing the one or more calculated characteristics of the material being drilled, and/or the one or more measured drilling parameters, as an input in the control system, in order to obtain an output from the control system, which output comprises one or more calculated drilling parameters; (e) optionally applying the one or more calculated drilling parameters to the drilling module; (f) optionally repeating steps (b), (c) (d) and (e).