Jet ring assembly and method for cleaning eductors

Details Jet ring assembly and method for cleaning eductors Jet ring assembly and method for cleaning eductors

2011-04-19

2011-04-19

Lee, Kevin L (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S240000, C137S888000, C366S163200, C366S177100, C366S182300

Reexamination Certificate

active

07926502

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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