Types of found reservoirs and its distribution characteristics of Putaohua oil layer in Sanzhao Sag of Songliao Basin were analyzed. The controlling factors of hydrocarbon distribution were investigated. Sanzhao Sag is Sag-wide Oil-Bearing, but its distribution of oil and water is extremely complicated. The reservoir types are mainly fault block reservoirs, low amplitude structure reservoirs, fault-lithologjc reservoirs and lithologic reservoirs. The distribution of reservoirs is mainly controlled by five geological factors: Distribution of mature source rocks control ranges and styles of hydrocarbon migration; hydrocarbon is mainly vertical migration in mature source rock; and laterally migration in crudity source rock. The distribution of (submerged) distributary channel sandbodies control spatial distribution of quality reservoir, quality reservoir formed by channel sandbodies accounted for more than 95%. Fault is predominant transporting pathway of hydrocarbon migration; the combination of faults and sandbodies controls ranges and distribution of hydrocarbon migration. Long-term inherited nose-like structure is predominant direction of petroleum migration, it induced oil and gas migration at a critical period of hydrocarbon accumulation and formed oil-gas accumulation area. Many factors temporal and spatial coupling control the final accumulation and distribution of hydrocarbon.%通过对松辽盆地三肇凹陷葡萄花油层已发现的油藏类型及其分布特征系统分析,总结出油藏类型、分布特征及其控制因素.三肇凹陷葡萄花油层虽然整体具“满凹含油”特征,但油水分布规律极其复杂,以各种断块、微幅构造、断层-岩性及岩性类油藏为主.油藏分布主要受控于5种地质因素:成熟烃源岩分布控制油气运移范围及方式,成熟源岩区油气以垂向运移为主,未成熟源岩区油气以侧向运移为主；(水下)分流河道砂体展布控制优质储层空间分布,各类河道砂体形成的储层占优质储层的95％以上;断裂是油气优势输导通道,断裂与砂体组合方式控制油气的运移范围与分布；继承性鼻状构造是油气运移优势指向,在油气成藏关键时期诱导油气运移,并构成富油区；多因素时空配置控制油气最终富集成藏与分布.
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