INFLUENCE OF MICRO-PORE STRUCTURE OF RESERVOIR ON RESERVOIR CAPACITY

摘要

Tight sandstone reservoirs are rich in reserves and have broad prospects, but there are many prob-lems in the development process. Therefore, it is of great significance to carry out research on the micro-scopic pore throat structure oftight oil. On the basis of scanning electron microscope and high pressure mercury injection technology, the study found that the throat radius in this area is mainly between 0.1483-0.5369um, the throat is narrow.The permea-bility and porosity of the reservoir are correlated with the pore size and pore volume. Hydrocarbon fluids can flow and accumulate well in the appropri-ate roars and pores.