Smart Push Force Application Tool for Drilling Trajectory Control
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Solution Overview
Problem
Current rotary steering drilling systems face limitations in deflection capability, drilling life, and speed, particularly in complex formations, and their performance is contradictory to near-bit measurement requirements.
Innovation Solution
A high-efficiency smart steering drilling system equipped with a smart push force application tool and centralizer, featuring a telescoping push force application wing rib that automatically adjusts inclination and azimuth angles to apply forces, combined with a flexible joint and near-bit measurement tools, enabling precise trajectory control and enhanced drilling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rotary steering drilling system is used, then drilling speed is improved, but deflection capability is insufficient
Solution Approach 1:
The patent employs a dynamic push force application mechanism where the push force application wing rib can be extended or retracted based on real-time trajectory deviation. The system dynamically adjusts the push force magnitude and direction (upward, downward, leftward, rightward) to achieve precise trajectory control while maintaining high drilling speed through rotary drilling operations.
Solution Approach 2:
The system incorporates near-bit measurement tools that continuously monitor inclination angle and azimuth angle, providing real-time feedback to the control system. This feedback loop enables the smart push force application tool to automatically adjust push force parameters based on actual trajectory deviation from the designed well path, resolving the contradiction between maintaining drilling speed and achieving precise deflection control.
2Manufacturing precision
If push force is increased to improve deflection, then trajectory control is improved, but drilling life of steering system decreases
Solution Approach 1:
The system applies push force only when and where needed based on real-time trajectory deviation detection. The near-bit measurement tools identify specific deviation points, and the push force application wing rib activates only at those locations and moments, applying partial action rather than continuous full-force application. This reduces cumulative wear on the steering system components while maintaining precise trajectory control where necessary.
Solution Approach 2:
The smart push force application tool incorporates self-regulating capabilities through integrated sensors and control systems that automatically adjust push force parameters based on real-time conditions. The system monitors its own performance and trajectory deviation, making autonomous decisions about when and how much push force to apply, thereby optimizing both trajectory control precision and component lifespan without requiring external intervention.
3Manufacturing precision
If smart push force application tool is added for trajectory control, then trajectory precision is improved, but device complexity increases
Solution Approach 1:
The smart push force application tool integrates multiple functions into a single device: near-bit measurement capabilities for detecting inclination and azimuth angles, control system for processing trajectory deviation data, and push force application mechanism with extendable wing ribs. This multi-functional integration achieves precise trajectory control while minimizing the number of separate components, thereby reducing overall system complexity compared to having separate independent systems for each function.
4Force
If telescoping push force application wing rib is used, then push force output is increased, but device complexity increases
Solution Approach 1:
The push force application wing rib employs a telescoping mechanism that dynamically extends or retracts based on real-time trajectory deviation requirements. The wing rib can be extended to increase push force output when large corrections are needed, and retracted when minimal correction is required. This dynamic adaptability maximizes push force output when necessary while minimizing mechanical complexity by using a single adjustable component rather than multiple fixed-force mechanisms.
Data Source
AI summary
A high efficiency smart steering drilling system includes a smart push force application tool and a centralizer. The centralizer is at an end close to a drill bit. The smart push force application tool is at an end away from the drill bit and includes a push force application wing rib having a telescoping function. The smart push force application tool is capable of automatically measuring an inclination angle and an azimuth angle and comparing the inclination angle and the azimuth angle with design values so as to control the push force application wing rib to output a push force in a telescopic manner based on a difference between the measured values and the design values and applying a push force to the drill bit. The drilling system achieves combined deflection under double action of drill bit push and pointing, greatly improving the deflection capability.