Downhole Tool Noise-Sensing Telemetry for Flow-Control Monitoring
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Solution Overview
Problem
Current downhole tools with flow control devices are unable to send up-link data to the surface of the wellbore, limiting the ability to monitor and control the position and operation of these devices effectively.
Innovation Solution
Incorporation of sensing devices that detect noise generated by flow control devices to determine operational variables and transmit this data wirelessly or via fiber optic cables to the surface, enabling real-time monitoring and control of downhole tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If downhole tools with flow control devices are used, then fluid production control is improved, but the ability to send up-link data to the surface deteriorates (no telemetry capability)
Solution Approach 1:
A sensor acts as an intermediary device positioned between the flow control device and the external monitoring system. The sensor detects operational parameters (noise, vibration, pressure) from the flow control device and transmits this information uphole, enabling remote monitoring without requiring direct communication capabilities in the downhole tool itself.
Solution Approach 2:
The patent replaces electronic communication systems with mechanical/acoustic sensing. Instead of using electronic telemetry to transmit data from the flow control device, the system uses acoustic sensors to detect mechanical vibrations and noise generated by the device operation, converting mechanical signals into usable operational data.
2Measurement precision
If sensors are positioned proximate to noise sources, then operational data detection is improved, but sensor reliability deteriorates due to noise interference
Solution Approach 1:
The patent converts the harmful noise environment into a beneficial signal source. The sensor detects the noise and vibration generated by the flow control device operation, treating this previously harmful interference as the primary carrier of operational information. The noise itself becomes the telemetry signal that reveals device status and performance.
Solution Approach 2:
Instead of trying to shield the sensor from noise or using noise as interference to be filtered out, the system inverts the approach by using the noise as the primary signal. The sensor is deliberately positioned to maximize exposure to the noise source, and the noise characteristics are analyzed to determine operational parameters.
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
Enables real-time monitoring and control of downhole tools, allowing for improved management of fluid composition and flow rates, enhancing production efficiency by adjusting flow control devices based on operational data.
Implementation Method 1
a sensor positioned proximate the flow control device, the sensor configured to sense for noise generated by the flow control device
Data Source
AI summary
Provided is a downhole tool, a well system, and a method. The downhole tool, in one aspect, includes a downhole device located proximate a downhole power source, the downhole device having circuitry coupled thereto, the circuitry configured to receive power from the downhole power source and measure operational data of the downhole device or downhole power source. The downhole tool, in accordance with another aspect, includes a signal noise source coupled with the circuitry, the signal noise source configured to receive the measured operational data from the circuitry and embed the operational data as noise. The downhole tool, in accordance with another aspect, includes a sensor positioned proximate the signal noise source, the sensor configured to sense for the noise and send uphole the operational data embedded within the noise.