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重磁综合约束反演在大杨树盆地油气勘探中的应用

Keywords: 火山岩盆地,综合反演解释,重磁三维物性反演,基底深度

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Abstract:

?鉴于大杨树盆地表层广泛分布的火山岩对地震波反射能量造成屏蔽,导致火成岩层间和下伏地层的地震资料品质变差,制约了火成岩油气藏勘探,为此在该区开展重磁综合约束反演,利用地震浅层可靠解释成果作约束条件,结合岩石物性、电法解释结果,得出了大杨树盆地基底分布规律、九峰山-龙江组厚度规律、勘探有利区带划分,形成了一套有效的重磁电震综合地球物理解释技术。经数据处理反演综合分析推断,玉林屯凹陷为主要有利油气勘探目标区。

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