Dual Drill Head Alignment via Electromagnetic Detection
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Solution Overview
Problem
Current methods for drilling parallel boreholes with high accuracy are costly and time-consuming, requiring multiple corrective drillings due to low precision, and existing solutions like artificial magnetic fields and high-precision optical gyroscopes are expensive and complex.
Innovation Solution
One drill head detects the other using a detection unit that emits and receives electromagnetic radiation, allowing for real-time adjustment of the advancing direction based on the location and alignment of the other drill head, enabling precise convergence without relying on predetermined paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional drilling methods with predetermined paths are used, then the drilling process is simple to plan, but the alignment precision between two drill heads is insufficient (±0.5 meters)
Solution Approach 1:
The patent implements real-time feedback by having each drill head detect the other drill head's position and orientation during drilling. The detection unit continuously monitors the relative position and provides feedback signals that are processed by a control unit, which then adjusts the drilling parameters to maintain precise alignment toward a common target point.
Solution Approach 2:
The patent replaces complex mechanical alignment systems (such as artificial magnetic fields or optical gyroscopes) with a detection-based system where drill heads actively detect each other. This substitution reduces device complexity while achieving superior alignment precision through real-time positional awareness and adaptive control.
2Manufacturing precision
If artificial magnetic fields or magnetic target points are introduced to increase accuracy, then the alignment precision improves, but the cost and time for setup and removal increase
Solution Approach 1:
The patent extracts the alignment function from external辅助设备 (artificial magnetic fields or magnetic target points) and integrates it directly into the drill heads themselves. Each drill head contains a detection unit that actively detects the other drill head, eliminating the need for separate alignment infrastructure and its associated setup and removal time.
Solution Approach 2:
The drill heads perform their own alignment function by detecting each other and autonomously adjusting their positions. This self-service capability eliminates the need for external alignment systems and the time-consuming processes of installing and removing artificial magnetic fields or target points.
3Manufacturing precision
If high-precision optical gyroscope systems are used for location, then the alignment precision improves, but the cost and complexity of the system increase
Solution Approach 1:
The patent merges the detection and alignment functions into a single integrated system where each drill head contains both the detection unit and the control unit. This combination eliminates the need for separate, expensive optical gyroscope systems while achieving comparable or superior alignment precision through direct mutual detection.
Solution Approach 2:
The patent replaces complex optical-mechanical gyroscope systems with an electromagnetic detection-based system. The detection units in each drill head use electromagnetic fields to detect the position and orientation of the other drill head, providing a simpler, more cost-effective solution with equivalent or better precision.
4Manufacturing precision
If multiple corrective drillings are performed to achieve proper alignment, then the final alignment accuracy improves, but the total drilling time and cost increase
Solution Approach 1:
The patent performs preliminary alignment actions continuously during the drilling process itself. Rather than completing drilling first and then performing separate corrective operations, the detection and control systems proactively maintain alignment throughout drilling, preventing the need for later corrective drillings and improving overall productivity.
Solution Approach 2:
The alignment detection and adjustment actions continue continuously throughout the entire drilling process. The detection units constantly monitor the relative positions of the two drill heads, and the control units continuously adjust drilling parameters to maintain optimal alignment, ensuring that alignment maintenance is an ongoing process rather than a series of discrete corrective actions.
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 method reduces the need for costly corrections and complex alignment systems, allowing for efficient and accurate drilling of continuous boreholes with reduced time and effort, enabling the creation of long boreholes with smaller drilling devices.
Implementation Method 1
a detection device on the other drill head by which the other drill head is detected
Data Source
Figure 1
AI summary
Method for drilling a borehole into the ground with two converging drill heads (1, 2), wherein one of the two drill heads (1, 2) detects the other drill head by means of a detection unit (6) and the thrust direction of at least one of the drill heads (1, 2) is adjusted in relation to the other drill head (1, 2).