近年来,我国石油勘探向深部地层进军,发现了一些新的油气藏。在砂——泥岩剖面正常压实情况下,地层压力随着埋藏深度的增加,引起孔隙度减小,同时也会引起渗透率降低。本文提出地层孔隙度随深度变化用于深部油气层的测井解释理论和方法,在生产、研究中应用,获得满意的效果。 In recent years, China’s oil exploration into the deep formations, found some new reservoirs. Under normal compaction of sand-mudstone section, the formation pressure decreases with the increase of burial depth, which leads to the decrease of permeability and the decrease of permeability. In this paper, the theories and methods of well log interpretation of deep porosity reservoirs with depth changes are presented. They are applied in production and research to obtain satisfactory results.