Nuclear magnetic resonance logging is one of the most advanced fuel logging technologies in the world. The paint logging signal comes from the formation pore fluid, which contains very extensive formation information, which can be used to quantitatively confirm the free fluid. Restrictions limit water. Key parameters such as permeability and pore size dispersion. In the exploration stage, nuclear magnetic resonance logging can provide useful information for the solution of the reputation problems of fluid properties, reservoir properties, and recoverable storage capacity; in the research and development stage, it can deal with remaining oil in the reservoir, harvesting yield and increasing production value. The reputation and analysis of method effects and other issues provide quantitative values. It has the application effect of surface treatment in complex lithology and special lithology reservoirs, low porosity and low permeability reservoirs, reservoirs with low resistivity reaching the highest limit, as