Nuclear magnetic resonance logging probe and device and static magnetic field compensation method thereof

The invention belongs to the technical field of nuclear magnetic resonance logging, particularly relates to a nuclear magnetic resonance logging probe and device and a static magnetic field compensation method thereof, and aims to solve the technical problem of low detection accuracy. The nuclear magnetic resonance logging probe comprises a shell, and a first magnet, a second magnet, a first coil, a second coil, a radio frequency coil and a detection device which are arranged in the shell, the detection device measures the magnetic field intensity of a preset area, the first magnet, the first coil, the radio frequency coil, the second coil and the second magnet are sequentially arranged in the first direction, like-polarity magnetic poles of the first magnet and the second magnet are oppositely arranged to generate a main magnetic field, and the first coil and the second coil generate a compensation magnetic field according to the magnetic field intensity measured by the detection device. The magnetic field i