辽河油田锦25区块下第三系沙一段辫状河三角洲沉积特征

Sedimentary characteristics of Sha I Section braided delta in jin 25 Block

从母岩特征、气候特征、沉积环境等方面分析了锦25区块沙一段沉积背景。依据大量地质资料,叙述了辫状河三角洲碎屑岩特征、粒度、沉积构造、泥岩特征等沉积特征,总结研究区辫状河三角洲的生储盖特征。

Depict depositional background of Sha I Section from three features,which are mother rock characteristics,climate characteristics,characteristics of sedimentary environment.Based on a large number of geological datas,describe sedimentary characteristics of the braided delta mudstone,such as clastic characteristics,grain size,sedimentary structures,mud characteristics.Give a summary of the reservoir characteristics of braided river delta at last.