环82-环56井区长8油层组物源分析

Source Analysis of Chang 8 Reservoir in Ring 82-ring 56 wells

物源分析是通过各种方法确定沉积物物源位置和性质及沉积物搬运路径,甚至整个盆地的沉积构造演化的过程,也是开展沉积体系研究的基础。研究区位于盆地西缘、西南部、南部和北部四个物源区形成的碎屑沉积体的汇聚区,文章主要从重矿物组合及成熟度等方面分析研究区内的主要物源方向,认为研究区沉积物主要来自西部与西南方向。

Provenance analysis is the process of determining sediment source location and properties,sediment transport routes,and even sedimentary tectonic evolution of the entire basin through various methods.It is also the basis for carrying out sedimentary system research.The study area is located in the convergent area of detrital sedimentary bodies formed by the four provenance zones in the western,southwest,southern and northern basins of the basin.This article mainly analyzes the main source direction of the study area from the aspects of heavy mineral composition and maturity,and believes that the sediments in the study area mainly come from the west and southwest.