Drill String Torque and Vibration Management via Real-Time Parameter Adjustment
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Solution Overview
Problem
Wellbore drilling faces challenges with excessive torque, drag, and vibration, which can lead to drill string fatigue, hardware failure, wellbore instability, and lost circulation events due to variable formation forces and interactions, necessitating real-time management solutions.
Innovation Solution
A system comprising a drilling tool and a computing device that monitors torque, drag, and vibration data in real-time, analyzes these parameters, and adjusts drilling fluid composition and operational parameters to mitigate excessive forces by selecting remedial materials and operational changes, such as altering weight-on-bit and rate-of-penetration, to maintain optimal drilling conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drilling operations continue through variable formation forces, then drilling productivity is maintained, but excessive torque, drag, and vibration cause drill string fatigue and hardware failure
Solution Approach 1:
The system continuously monitors torque, drag, and vibration sensors on the drill string and feeds this data back to a surface computer. When excessive forces are detected, the system automatically adjusts drilling parameters (weight-on-bit, rate-of-penetration, rotational speed) or injects remedial materials to mitigate the harmful effects, allowing continuous drilling while preventing hardware failure.
Solution Approach 2:
The system dynamically changes drilling parameters such as weight-on-bit, rate-of-penetration, and rotational speed based on real-time sensor data. When excessive torque or vibration is detected, the system adjusts these parameters to reduce the harmful forces while maintaining drilling progress, resolving the contradiction between productivity and reliability.
2Reliability
If real-time monitoring and adjustment systems are implemented, then excessive torque, drag, and vibration are mitigated, but device complexity increases
Solution Approach 1:
The monitoring system serves multiple functions: it detects excessive forces, identifies their causes (torque, drag, or vibration), selects appropriate remedial actions, and controls parameter adjustments. This multi-functionality reduces the need for separate specialized systems, managing complexity while improving reliability.
Solution Approach 2:
The system automatically monitors sensor data, analyzes the causes of excessive forces, selects remedial materials or parameter changes, and executes the mitigation without requiring constant operator intervention. This automation reduces operational complexity while maintaining high reliability through continuous real-time management.
3Reliability
If drilling parameters are adjusted to reduce excessive forces, then drill string fatigue is reduced, but drilling speed and productivity may decrease
Solution Approach 1:
The system applies parameter adjustments periodically and temporarily only when excessive forces are detected, rather than maintaining reduced parameters continuously. This allows the drill string to operate at optimal high-speed parameters during normal conditions, maintaining productivity, while applying protective parameter changes only when needed to prevent fatigue and hardware failure.
Data Source
AI summary
Certain aspects and features of the present disclosure relate to real-time management of excessive torque, drag, and vibration along a drill string. In some aspects, torque, drag, vibration or any combination of these may be monitored at locations along the drill string, and these forces may be mitigated by adjusting the drilling fluid composition in real time. In some aspects, the forces may be mitigated by making real-time operational changes during wellbore drilling instead of or in addition to drilling fluid treatments.