Methods and Apparatus for Analyzing Operations

A method, comprising:

• disposing a first downhole tool in a wellbore, the first downhole tool including a sensor having a heater and a temperature sensor;
• determining a first value of a fluid parameter of a fluid adjacent the first downhole tool via the sensor;
• determining a second value of the fluid parameter via the sensor;
• and
• based on the first value and the second value, determining if a second fluid has flowed into the wellbore.

A method, comprising:

• disposing a first downhole tool in a wellbore, the first downhole tool including a sensor having a heater and a temperature sensor;
• determining a first fluid parameter value of a fluid in the wellbore via the sensor;
• transmitting a signal to one of the first downhole tool or a second downhole tool to perform an operation;
• determining a second fluid parameter value of the fluid via the sensor;
• and
• determining if the operation is properly performed based on the first fluid parameter value, the second fluid parameter value, and an estimated fluid parameter value.