Nuclear magnetic resonance core measurement experiment system and method

The invention relates to a nuclear magnetic resonance core measurement experiment system and method, and the system comprises a computer control system, a continuous high-pressure system, a high-temperature circulating system, an auxiliary cooling system, a core holder, a high-temperature and high-pressure probe, a low-field nuclear magnetic resonance core analyzer and a circulating liquid collection container, the computer control system is electrically connected with the continuous high-pressure system, the high-temperature circulating system and the auxiliary cooling system; the continuous high-pressure system is connected with the high-temperature circulating system; the high-temperature circulating system is used for providing stable temperature for the interior of the core holder; the auxiliary cooling system is used for assisting in reducing the temperature of the high-temperature and high-pressure probe; the core holder is fixed on the high-temperature and high-pressure probe; the high-temperature and