Apparatus and method of using an inline electrical conductivity monitor

A method, comprising:

• measuring a first electrical conductivity of a treatment fluid with a first conductivity sensor, positioned proximate to a surface of a wellsite, prior to the treatment fluid flowing through a well;
• measuring a second electrical conductivity of the treatment fluid flowing through the tubing within the well with a second conductivity sensor;
• generating one or more signals indicative of the first and second electrical conductivity of the treatment fluid;
• and
• transmitting the one or more signals to a computer.

A treatment fluid conductivity measuring system, comprising:

• a surface pump configured to pump a treatment fluid into a well through a fluid path;
• one or more electrical conductivity sensor positioned in the fluid path and configured to measure a conductivity of the treatment fluid;
• and
• a computer operably connected to the one or more electrical conductivity sensor, the computer having a processor configured to:
• cause the one or more electrical conductivity sensor to measure the electrical conductivity of the treatment fluid;
• receive one or more signals indicative of the electrical conductivity of the treatment fluid generated by the one or more conductivity sensor;
• and
• analyze the one or more signals to determine a phase change of the treatment fluid based upon a change in the electrical conductivity of the treatment fluid.