Drill Bit Force Guidance for Real-Time Well Path Correction
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Solution Overview
Problem
Current directional drilling systems face challenges in promptly correcting deviations of the drill bit from a planned well path due to formation anomalies, as instrumentation modules are often located far from the drill bit, resulting in a lag-time before corrective actions can be taken.
Innovation Solution
A guidance system comprising a force measurement system and steering module that includes sensors and a controller to measure and respond to forces applied to the drill bit in real-time, allowing for immediate redirection of the drill bit to maintain the planned well path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If instrumentation modules are located far from the drill bit to simplify system design, then device complexity is reduced, but response time increases causing lag-time in detecting and correcting drill bit deviations
Solution Approach 1:
The system segments the measurement function by placing dedicated force sensors directly on the drill bit, separate from the main instrumentation module. This allows the drill bit itself to serve as both the drilling tool and the measurement platform, eliminating the need for long sensor cables and complex signal transmission systems while enabling real-time deviation detection
Solution Approach 2:
The force sensors are integrated within the drill bit structure, with sensors embedded in the drill bit body or on its surface. This nesting approach allows the measurement system to be contained within the existing drill bit geometry, minimizing additional complexity while maximizing measurement proximity to the drilling action
2Speed
If sensors are positioned close to the drill bit to reduce detection lag-time, then measurement speed improves, but device complexity increases due to additional components and installation requirements
Solution Approach 1:
The drill bit is designed to serve multiple functions: it performs drilling while simultaneously hosting the force measurement sensors. This multi-functionality eliminates the need for separate measurement devices and reduces overall system complexity, as the drill bit structure itself becomes the measurement platform
Solution Approach 2:
The drill bit structure provides its own measurement capability through integrated sensors that detect forces directly at the source. The system serves itself by using the drill bit's own structural elements to mount and protect the sensors, eliminating the need for external measurement equipment and complex installation procedures
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 minimizes unplanned borehole deviations by quickly correcting drill bit deviations, reducing the extent of lateral deviations from the planned path and ensuring more accurate drilling operations.
Implementation Method 1
the strain gauges are coupled to a pocket wall and are arranged to detect forces applied on the drill bit
Data Source
AI summary
The present disclosure relates to a system, apparatus and method for guiding a drill bit based on forces applied to a drill bit, and drilling methods related to same.