Jet ring assembly and method for cleaning eductors
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United States of America Patent
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Apr 19, 2011
Grant Date -
N/A
app pub date -
Jun 16, 2010
filing date -
Jun 18, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An eductor with a jet ring assembly for generating a low pressure region for detaching and removing residual drilling fluid solids from the internal walls of the eductor is disclosed. The eductor can include: induction ports, liquid induction ports, a mixing chamber, a diffuser, and a jet ring adaptor that can generate the low pressure region. Also disclosed is a method for removing residual drilling fluid solids (wall cake) from internal walls of the eductor. The method can include: stopping the flow of a first pressurized fluid to the eductor, stopping discharge from a diffuser of the eductor, and pressurizing a jet ring assembly using a second pressurized fluid to detach and remove the wall cake from the internal walls of the eductor.
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