南阳凹陷北部坡折带隐蔽油气藏勘探

Subtle reservoir exploration in the slope-break belt of the north Nanyang Depression

坡折带是沉积学和层序地层学中的一个极其重要的概念。对南阳凹陷北部坡折带进行了系统的研究,阐述了坡折带的形成机制及坡折带控制下的层序的基本类型、体系域构成模式,并对坡折带控制下的隐蔽油藏的成藏条件进行了研究。勘探结果表明,南阳凹陷坡折带控制下的隐蔽油气藏具有较大的勘探潜力。

The slope-break belt is an important concept in sedimen-tology and sequence stratigraphy. The systematic studies about the slope-break belt have been promoted in the Nanyang Depression, including forming mechanism of the slope-break belt, the base types of the sequences, system tract construction mode. Inner configurations and characteristics of depositional system suggest that the petroleum exploration in the slope-break belt of the Nanyang Depression should be focused on the subtle traps controlled by the belt.