Nozzle-based ICD technology originated as a solution to address uneven fluid production in horizontal oil wells, a challenge exacerbated by the extended contact between the wellbore and the reservoir in long horizontal sections.
Early horizontal completions often experienced localised 'hot spots', where higher permeability zones or pressure variations along the base pipe led to excessive inflow, causing early water or gas breakthrough and reducing oil recovery efficiency.
Engineers adapted nozzle technology, originally used in fluid dynamics and industrial applications, to create controlled restrictions within the wellbore. By incorporating precision nozzles into completion designs, the flow of reservoir fluids could be balanced, reducing pressure variations and ensuring more uniform drainage along the horizontal section.
Key characteristics
Simulated in Insight
Insight models this device type in full, including annulus phase segregation and valve interaction effects that standard simulators cannot capture.
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