关键词: 测井解释方法, 砂岩油藏, 裂缝性油藏, 大陆架油气, 岩石孔隙度, 地层水电阻率, 裂缝孔隙度, 砂岩油气藏, 构造圈闭, 海水泥浆

Abstract: The offshore oil and gas pools on the continental shelf of China are characterized by their multiplicity of lithology, reservoir property and types of traps. There are sandstone oil and gas pools in structural traps and sandstone and reef oil and gas pools under great excess reservoir pressure in lithologic traps of Tertiary, oil pools in lithologically trapped volcanic rocks of Jurassic and Cretaceous; and carbonate fractured oil pools in lithostructural traps and strati-structural traps of Carboniferous, Cambrian and Ordovician. The present paper deals largely with the characteristics of log interpretation for sandstone and non-sandstone pools, laying particular emphasis on the method applied for raising the accuracy of interpretation.