Rate limiting device to enhance the performance ratio and longevity of a wellbore inflow control device

By incorporating a flow rate limiting device to restrict fluid flow to generators in wellbore flow control tools, the issues of excessive turbine RPM and undesired fluid production are addressed, resulting in improved performance and longevity of the tools.

WO2025071599A1 Publication Date: 2025-04-03HALLIBURTON ENERGY SERVICES INC
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Patent Information

Application Number
PCT/US2023/075278
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-26
Filing Date
2023-09-27
Publication Date
2025-04-03

AI Technical Summary

Technical Problem

Conventional flow control tools in wellbores face issues with excessive turbine RPM leading to premature wear and undesired fluid production, due to fixed nozzles that increase flow rate with differential pressure.

Method used

A flow rate limiting device is disposed in line with the generators to restrict the fluid flow rate to a predetermined limit, ensuring the turbines operate within a safe RPM range, thereby preventing excessive wear and fluid production.

Benefits of technology

The implementation of a flow rate limiting device enhances the performance ratio and longevity of the flow control tools by maintaining optimal turbine operation and reducing undesired fluid production, even in high differential pressure environments.

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Abstract

An apparatus to be positioned in a wellbore formed in a subsurface formation. The apparatus comprises one or more generators disposed in a flow path within a flow control tool and configured to output electrical power to components of the flow control tool in response to flow of a fluid in the flow path, wherein the fluid enters the flow path from the wellbore. The apparatus comprises a flow rate limiting device disposed in the flow path and configured to control a flow rate of the fluid as the fluid flows to the one or more generators.
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