摘要
惠民凹陷江家店地区沙四上亚段沉积时期广泛发育滨浅湖滩坝砂体沉积,油气资源丰富。滩坝砂岩具有砂泥互层、单砂层厚度薄、横向变化快等特点,增大了滩坝砂岩储层的地震识别与预测难度。通过分析滩坝砂岩与古地形、古沉积环境等因素的关系,综合应用录井、测井、地震相分析和多属性融合等技术对滩坝砂体进行有效识别,指导了该区油气勘探实践。
Abundant beach-bar sandbodies with rich oil and gas resources are widely distributed in the upper part of the 4th member of the Paleogene in Jiangjiadian area of Huimin Sag. The beach-bar res ervoirs are characterized by interbedded sandy and muddy deposits, thin sand layers, and drastic later- al facies variation. It made the seismic interpretation and reservoir prediction very difficult in practice. In this paper, we studied the beach bar sandstone and its relationship with paleotopography within a sequence stratigraphical framework by means of logging, well logging, seismic facies analysis and multiple attribute fusion technology. As the results, beach-bar sandstones were effectively identified that is helpful to oil and gas exploration in the sag.
出处
《海洋地质前沿》
2013年第6期32-36,共5页
Marine Geology Frontiers
关键词
惠民凹陷
滩坝砂岩
储层预测
Huimin Sag
beach-bar sandstone
reservoir prediction
