Hydropulse

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Fluidic Oscillating Switch Technology

Page last modified
October 11 2024

The Hydropulse harnesses the power of fluidic oscillations, a technology based on the Coanda effect. This natural phenomenon describes how a fluid stream follows a curved surface. 

In the Hydropulse tool, a fluid stream enters the oscillator and, due to the Coanda effect, preferentially attaches to the outer wall of a curved passage. As it flows, it creates a low-pressure zone at a specific point. This pressure difference disrupts the main-stream and diverts the flow to the opposite passage. This continuous switching creates rapid oscillations, resulting in powerful bursts of fluid. Hydropulse's powerful bursts of fluid generate pulsating pressure waves that travel through the wellbore fluids and into the formation itself. 

These pressure waves act like a microscopic hammer, fracturing any type of near-wellbore damage. They work in two ways:  

Dual Cleaning Action:  Hydropulse's pressure waves act like a powerful one-two punch to remove damage: Compressive Force: Imagine a microscopic hammer. As the wave enters the the perforation and contacts the obstruction, it deliveres a powerful compressive force , effectively shattering and breaking up the blockage.   

Pros & Limitations
1
• Targeted Cleaning: Removes formation damage throughout the wellbore, not just perforations, for a more complete cleanup.
• Improved Well Connectivity: Significantly reduces communication issues between perforations, optimizing well productivity.
• Unrestricted Placement: Unaffected by standoff limitations like jetting nozzles, enabling flexible deployment.
• Enhanced Versatility: Compatible with other downhole tools for comprehensive well intervention.
• Boosted Chemical Effectiveness: Breaks up formation damage, increasing the surface area for improved chemical treatment.



Specification
Specification Title Specification Description
Reliable Design
No moving parts means less wear and tear, reducing downtime and maintenance costs.
Unrestricted Cleaning
Pressure waves are unaffected by standoff distance, unlike jetting or velocity tools, allowing for effective cleaning regardless of tool placement.
360° Coverage
Spherically expanding pressure waves ensure comprehensive cleaning throughout the entire wellbore as the tool moves through the interval.

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Technology Readiness Level

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[9/9]

Development Technology demonstration Mature / Proven
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Hydropulsion Ltd is an independently owned provider of coil tubing well intervention tooling to the global oil and gas market. The company specializes in engineered solutions for downhole operations, including jetting tools, mills, and other specialty equipment. Hydropulsion has been the international dealer for StoneAge Spincat jetting tools for over 18 years. The company is based in Aberdeen, Scotland.

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