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位于生油凹陷邻近的凹陷缓坡带通常是地层及岩性油藏发育的有利区带。在缓坡带上所发育的多种油藏大都与缓坡带的沟谷存在着密切的关系。精确的古沟谷分析可以减少根据地震相预测沉积体系的多解性,降低储集层预测的风险。进一步结合层序地层学的认识对缓坡带沟谷中沉积特征进行分析,总结出洼陷缓坡带沟谷中不同沉积体系域下有利储层发育特点以及沟谷中不同沉积环境下所产生的不同油气疏导效能,可对凹陷缓坡带受沟谷发育影响的地层、岩性油藏勘探有一定指导意义。
The depression gentle slope adjacent to the oil-bearing depression is usually a favorable zone for the development of stratigraphic and lithologic reservoirs. Most of the reservoirs developed in the gentle slope zone are closely related to the valleys of the gentle slope belt. Accurate paleo-valleys analysis can reduce the multi-solution of predicting sedimentary systems based on seismic facies and reduce the risk of reservoir prediction. Based on the further understanding of sequence stratigraphy, the sedimentary characteristics of the gentle slope belt valley are analyzed, and the development characteristics of favorable reservoirs under different sedimentary system valleys in the gentle slope valleys and the different diversion properties of oil and gas in different depositional environments in the valley , Which may be of guiding significance to the exploration of stratigraphic and lithologic reservoirs affected by the development of valleys in the gentle slope depression.