Downhole Flow-Control Sensing Through Spinning-Feature Noise
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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
The implementation of sensing devices that detect changes in noise generated by flow control devices, such as inflow control devices, to wirelessly transmit operational data, including position and health information, to the surface using fiber optic cables or wireless short hops, enabling real-time bi-directional communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flow control devices are installed in downhole tools to balance fluid production along the wellbore interval, then production control and conformance are improved, but the ability to monitor and control device position and operation is lost due to lack of up-link data transmission
Solution Approach 1:
A sensor acts as an intermediary between the spinning feature and the surface system. The sensor detects changes in noise generated by the spinning feature and transmits this information uphole via the cable, enabling monitoring without direct communication capability from the downhole device itself
Solution Approach 2:
The patent replaces the need for electronic communication from the downhole device with a passive acoustic sensing system. Instead of the device transmitting electronic data, the sensor detects mechanical vibrations and noise patterns that indicate device status and position
2Reliability
If sensors are positioned proximate to spinning features to detect operational data, then real-time monitoring capability is improved, but device complexity increases due to additional sensor placement and noise detection mechanisms
Solution Approach 1:
The cable serving the downhole tool performs multiple functions: it provides power to the device, serves as a communication conduit, and acts as a sensor medium to detect acoustic noise from spinning features. This multi-functionality reduces the need for separate dedicated sensor systems
Solution Approach 2:
The spinning feature itself generates the signal (noise) that the sensor detects. The device's normal operation creates the operational data, eliminating the need for separate actuators or signal generators that would increase complexity
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 flow control devices, allowing for improved management of fluid composition and flow rates, enhancing production efficiency by adjusting operations based on fluid characteristics.
Implementation Method 1
the sensor configured to sense for a change in noise emanating from the spinning feature
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, the downhole device including a spinning feature associated therewith. The downhole tool, in accordance with another aspect, includes a sensor positioned proximate the spinning feature of the downhole device, the sensor configured to sense for and send uphole operational data originating from the spinning feature of the downhole device, the operational data in the form of a change in noise emanating from the spinning feature of the downhole device.