Apparatus, system and method for separating components of a slurry

Patent metadata

Field	Value
Publication number	US-10704346-B2
Application number	US-201415039439-A
Country	US
Kind code	B2
Filing date	Nov 26, 2014
Priority date	Nov 26, 2013
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A system having a screen having an upper side and a lower side for separating drill cuttings and drilling fluid within a vibratory separator; a tray positioned below the screen for receiving the drilling fluid from the screen; a pressure differential generator coupled to the tray, the pressure differential generator configured to create a pressure differential between the upper side and the lower side through the screen to enhance the flow of drilling fluid through the screen; and a hose assembly coupling the pressure differential generator to a coupler, an inlet of the coupler being arranged perpendicularly between a first outlet coupled to a mist eliminator and a second outlet coupled to a tank.

First claim

What is claimed is:

1. A method comprising:
disposing a fluid passage of a pressure differential generator between a first end of the pressure differential generator and a second end of the pressure differential generator that is opposite with respect to the first end of the pressure differential generator, wherein the pressure differential generator has a fluid inlet disposed between the first end and the second end of the pressure differential generator and in fluid communication with the fluid passage of the pressure differential generator;
flowing fluid from a fluid source through the fluid inlet into an annular plenum chamber of the pressure differential generator;
directing the fluid to the second end of the pressure differential generator by injecting the fluid from the fluid source into one or more nozzles;
generating a pressure differential between a first area above a screen and a second area below the screen, thereby pulling a mixture of entrained air, vapor and a drilling fluid through the screen and into the fluid passage of the pressure differential generator, wherein the pressure differential is generated by the fluid from the fluid source flowing into the one or more nozzles;
conveying the mixture from the screen through the fluid passage of the pressure differential generator to a chamber via a hose, wherein the conveying minimizes the misting of the mixture;
submerging the hose within a fluid level in the chamber; and
in response to a second pressure differential between the pressure differential generator and the chamber causing the mixture to flow in a reverse direction from the chamber toward the pressure differential generator via the hose, flowing the mixture through a port in the hose, wherein the port is configured to direct the mixture back to the chamber.

2. The method of claim 1 , wherein the pressure differential generator is selected from the group consisting of an air amplifier, a line vacuum, and a vacuum generator.

3. The method of claim 1 , wherein the port is configured to be perpendicular to the flow of the mixture in the hose.

Assignees

• Mi Llc

Inventors

• Frazier Evan T
• Stewart Colin
• Bingham Richard

Classifications

• B07B1/28 Primary

  Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens · CPC title

• B07B1/40

  Resonant vibration screens · CPC title

• B07B13/16

  Feed or discharge arrangements · CPC title

• B07B1/46

  Constructional details of screens in general; Cleaning or heating of screens · CPC title

• E21B21/067 Primary

  Separating gases from drilling fluids · CPC title