System and method for determining at least a property of multiphase fluid

A method comprising:

• receiving flowing multiphase fluid in a conduit;
• acquiring measurements with respective sensors relative to one or more properties of the multiphase fluid, wherein the sensors comprise at least a water analysis sensor and a pair of microwave antennas, wherein the pair of microwave antennas comprises a first antenna for transmitting a signal and a second antenna for receiving at least a portion of the signal;
• determining at least a property of a liquid water phase of the multiphase fluid based on an acquired water analysis sensor measurement, wherein the at least a property comprises one or more of a water salinity and a water liquid ratio;
• determining one or more of a mixture permittivity and a mixture conductivity of the multiphase fluid based on the at least a portion of the signal received by the second antenna of the pair;
• and
• determining a gas hold-up of the multiphase fluid based at least in part on one or more of the mixture permittivity and the mixture conductivity.

One or more computer-readable storage media comprising processor-executable instructions executable by a processor to instruct a system to:

• acquire measurements with respective sensors relative to one or more properties of multiphase fluid flowing in a conduit, wherein the sensors comprise at least a water analysis sensor and a pair of microwave antennas, wherein the pair of microwave antennas comprises a first antenna for transmitting a signal and a second antenna for receiving at least a portion of the signal;
• determine at least a property of a liquid water phase of the multiphase fluid based on an acquired water analysis sensor measurement, wherein the property comprises one or more of a water salinity and a water liquid ratio;
• determine one or more of a mixture permittivity and a mixture conductivity of the multiphase fluid based on the at least a portion of the signal received by the second antenna of the pair;
• and
• determine a gas hold-up of the multiphase fluid based at least in part on one or more of the mixture permittivity and the mixture conductivity.