Ultrasound color flow imaging for oil field applications

A system for rheology measurements comprising:

• a conduit;
• an ultrasound transmitter positioned to direct sound waves into the conduit;
• an ultrasound receiver on an opposite side of the conduit from the ultrasound transmitter and positioned to receive sound waves from the conduit;
• a pump fluidically coupled to the conduit;
• a heat exchanger fluidically coupled to the conduit;
• and
• vanes disposed in the conduit.

A method of operating a rheology measurement system comprising:

• drawing a sample of a treatment fluid into the rheology measurement system;
• pressuring the sample of the treatment fluid;
• adjusting temperature of the treatment fluid;
• directing ultrasound pulses into the treatment fluid while the treatment fluid is flowing through the rheology measurement system;
• measuring sound waves reflected by the treatment fluid;
• and
• determining a velocity profile of the treatment fluid based at least on the measured sound waves.