Patent ID: 7954362

Claim:
An apparatus configured to determine fractions of various phases in a multiphase fluid, comprising: a main body including an interior configured to receive a multiphase fluid and an exterior; a pressure sensor configured to sense a fluid pressure of multiphase fluid received in the interior; a temperature sensor configured to sense a fluid temperature of the multiphase fluid; one or more ultrasonic transmitter-sensor pairs configured to transmit and receive an ultrasonic wave in the multiphase fluid , wherein each ultrasonic transmitter-sensor pair is capable of detecting a gas, a water and a non-water fluid in a multiphase flow; and a computer configured to determine a gas fraction, water fraction, and a non-water fluid fraction of the multiphase fluid based on the sensed fluid pressure, the sensed fluid temperature, and at least one characteristic of the detected ultrasonic wave in the multiphase fluid.