Application of NMR Technique in the Study of Reservoir Microscopic Pore Space

Abstract

In view of oil-water two phase displacement experiment can't from the micro level such as throat problem for reservoir use condition is described,Using nuclear magnetic resonance (NMR) technology can reflect the oil-water distribution from the microscopic view, Combined the macro oil displacement effect and micro pore structure. By using nuclear magnetic resonance T2 spectrum changing into throat radius and saturation calculation method in different throat range. Quantitative description the distribution of bound water, residual oil I and oil produced in different in pores of drainage and Suction process, to a certain extent in the comprehensive understanding of microscopic reservoir pore space, has the vital significance for reservoir evaluation.