Distributed Sensor Drill Pipe for Loss Circulation Zone Identification
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Solution Overview
Problem
Current methods for identifying and managing loss circulation zones in subterranean wells are limited by global fluid volume change sensing, leading to inadequate understanding and control of loss circulation, resulting in wellbore instability, fluid loss, and potential well abandonment.
Innovation Solution
The implementation of distributed sensors along the drill pipe with advanced algorithms and autonomous deployment mechanisms to identify and remediate loss circulation zones by measuring downhole parameters such as temperature, pressure, and flow rate, and deploying releasable products like lost circulation fabric or microchip balls to seal or communicate data effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If distributed sensors are installed along the drill pipe to monitor downhole parameters, then measurement precision and loss circulation zone identification accuracy are improved, but device complexity increases
Solution Approach 1:
The drill pipe is divided into multiple segments with distributed sensors installed at different locations along its length. Each sensor monitors local downhole parameters independently, enabling precise localization of loss circulation zones while maintaining manageable system complexity through modular sensor placement.
Solution Approach 2:
The sensor system is designed to perform multiple functions: monitoring temperature, pressure, flow rate, and detecting loss circulation zones. This multi-functionality reduces the need for separate specialized devices, thereby improving measurement precision without proportionally increasing device complexity.
2Reliability
If autonomous deployment mechanisms are implemented to release remediation materials, then response time and wellbore stability are improved, but device complexity and energy consumption increase
Solution Approach 1:
Remediation materials are pre-loaded into deployment mechanisms before entering the wellbore. When loss circulation is detected, the materials are automatically deployed without requiring complex real-time manufacturing or assembly operations downhole, thus improving wellbore stability while keeping the mechanism relatively simple.
Solution Approach 2:
The system uses the existing downhole environment (drilling fluid flow, temperature gradients, pressure differentials) to trigger and execute the deployment of remediation materials. This self-service approach minimizes the need for complex external control systems and additional energy sources.
3Ease of operation
If global fluid volume change sensing is used to identify loss zones, then ease of operation is maintained, but measurement precision and understanding of loss circulation is insufficient
Solution Approach 1:
Instead of relying on a single global fluid volume measurement, the system segments the monitoring into multiple distributed sensor locations along the drill pipe. Each sensor provides localized data, and the combination of these simple measurements delivers precise loss circulation zone identification without complicating operations.
Data Source
AI summary
Systems and methods for managing a loss circulation zone in a subterranean well include a tool housing located on a surface of a tubular member with a tool cavity that is an interior open space within the tool housing. An electromechanical system is located within the tool cavity and has a printed circuit board, a microprocessor, a sensor system, a power source, and a communication port assembly. A release system can move a deployment door of a deployment opening of the tool housing between a closed position and an open position. The deployment opening can provide a flow path between the tool cavity and an outside of the tool housing. The release system is actuable autonomously by the electromechanical system. A releasable product is located within the tool cavity and can travel through the deployment opening when the deployment door is in the open position.