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对子长油田安定地区延长组长6油层油气成藏条件进行了研究,认为该区长6油层属典型的低渗—超低渗储层,生、储、盖组合单一;湖相烃源岩为油气的生成提供了物质保障;泛滥平原相、沼泽相泥岩为油气成藏提供了良好的盖层条件;长6油藏属于典型岩性圈闭油气藏,油气富集主要受物性、岩性及岩相等因素影响。有利的沉积相带和储层物性共同控制了长6油藏的油气分布。
Based on the study on hydrocarbon accumulation conditions of Chang 6 oil layer in Yanchang Formation in Anding Area, Zichang Oilfield, it is considered that the reservoir of Chang 6 oil reservoir is a typical low permeability - ultra low permeability reservoir with a single combination of reservoir, reservoir and cap. Which provided material support for the formation of oil and gas. The flood plains and marsh facies provide favorable caprock conditions for oil and gas accumulation. Chang 6 reservoir is a typical lithologic trap reservoir. The enrichment of oil and gas mainly depends on physical properties and lithology And rock and other factors. The favorable sedimentary facies and reservoir properties jointly control the oil and gas distribution in Chang 6 reservoir.