Patent ID: 9695670
Date: 2017-07-04
CPC Classifications: B01F,E21B,G05D

Claim:
1. A slurry mixing system of a well operation, comprising: a mixer mixing a dry blend and a mix fluid into a slurry; a first pump disposed downstream of the mixer, flow equipment delivering a first portion of the slurry from the first pump for the well operation, circulating a second portion of the slurry from the first pump back to the mixer for mixing, and circulating a third portion of the slurry from the first pump for sensing; a slurry sensor disposed in fluid communication with the third portion of the slurry, the slurry sensor measuring a pressure differential of the slurry between at least two vertical measurement points of a known volume, the flow equipment circulating the third portion of the slurry to a point downstream of the mixer and upstream of the first pump; and a controller operatively coupled to the slurry sensor, the controller obtaining the measured pressure differential and obtaining a velocity of the third portion of the slurry, the controller calculating a density of the slurry therefrom.