Nuclear magnetic resonance sensing device calibration system and method

A non-transitory computer-readable storage medium having embodied thereon instructions executable by one or more processors to implement a method comprising:

• obtaining, from a nuclear magnetic resonance (NMR) sensing device placed in a calibration chamber, a plurality of measurements associated with a calibration medium;
• identifying a first radio frequency (RF) signal that stimulates a maximum observed transition magnitude when the first RF signal is transmitted into the calibration medium and when the calibration chamber is at a first temperature;
• identifying a second RF signal that stimulates the maximum observed transition magnitude associated when the second RF signal frequency is transmitted when the calibration chamber is at a second temperature;
• and
• associating the first temperature with the first RF signal and the second temperature with the second RF signal in a set of calibration data that cross-references:
• the first temperature with the first RF signal, and
• the second temperature with the second RF signal, wherein the calibration data is accessed when data collected at wellbore is evaluated to identify a characteristic of the wellbore.

An apparatus comprising:

• a temperature-controlled isolation chamber;
• a nuclear magnetic resonance (NMR) sensing device that is placed in the temperature-controlled isolation chamber, wherein the NMR sensing device obtains a plurality of measurements associated with a calibration medium;
• a memory;
• and
• one or more processors that execute instructions out of the memory to:
• identify a first radio frequency (RF) signal that stimulates a maximum observed transition magnitude when the first RF signal is transmitted into the calibration medium and when the calibration chamber is at a first temperature, identify a second RF signal that stimulates the maximum observed transition magnitude associated when the second RF signal frequency is transmitted when the calibration chamber is at a second temperature, and
• associate the first temperature with the first RF signal and the second temperature with the second RF signal in a set of calibration data that cross-references:
• the first temperature with the first RF signal, and the second temperature with the second RF signal, wherein the calibration data is accessed when data collected at wellbore is evaluated to identify a characteristic of the wellbore.