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我国近海大陆架油气藏具有多岩性、多储层和多圈闭类型。例如,在第三系有构造圈闭的的砂岩油气藏、岩性圈闭的超压砂岩油气藏和礁灰岩油藏;在侏罗系和白垩系有岩性圈闭的火山岩油藏;在石炭系、寒武系、奥陶系有岩性-构造圈闭和地层-构造圈闭的碳酸盐岩裂缝性油藏。本文主要论述这些砂岩与非砂岩油气藏测井解释的特征,采用特殊的测井解释方法,有助于提高近海大陆架油气藏测井解释的精度,从而发现更多的石油与天然气。
China’s continental shelf oil and gas reservoirs are of multi-lithology, multi-reservoir and multi-trap types. For example, there are trapped sandstone reservoirs, lithologic trapped overpressured sandstone reservoirs and reef limestone reservoirs in the Tertiary; volcanic reservoirs with lithologic traps in the Jurassic and Cretaceous; In the Carboniferous, Cambrian, Ordovician lithologic - structural traps and stratigraphy - structural traps carbonate fractured reservoir. In this paper, we mainly discuss the characteristics of logging interpretation of these sandstone and non-sandstone reservoirs. Using a special logging interpretation method helps to improve the accuracy of well log interpretation of offshore oil and gas reservoirs and thus discover more oil and gas.