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正向局部构造是油气勘探中的重要钻探目标 .通过分析局部构造成因类型、构造发育史 ,并结合石油地质特征 ,阐述了研究区内不同类型、不同时期构造带的含油气性 .松辽盆地南部中浅层正向局部构造是基底隆起、扭动反转、岩浆底辟作用和差异压实多种机制下形成的 .将局部构造分为长期、中期和晚期 3种发育类型 .基底长期隆起区具有多层位含油气构造 ,断裂扭动形成的反转构造部位是油气富集较有利区
The positive local structure is an important drilling target in the exploration of oil and gas.By analyzing the genetic type of local tectonics and the history of structural development and combining with the petroleum geological characteristics, the hydrocarbon-bearing properties of different types and periods of tectonic belts in the study area are expounded.The Songliao Basin The middle and shallow foreland structures in the southern part are formed by a variety of mechanisms such as basal uplift, wobbling reversal, magmatic diapirism and differential compaction. Local structures are divided into three types of long-, middle- and late- The area has a multi-layer hydrocarbon-bearing structure. The reverse structural site formed by the torsional fracture is a favorable area for hydrocarbon enrichment