鄂尔多斯盆地西北部上古生界流体包裹体特征及其与油气演化的关系

Geochemistry of Fluid Inclusions in the Upper Paleozoic in the Ordos Basin and Its Relation with Petroleum Evolution

通过对鄂尔多斯盆地上古生界砂岩成岩作用研究的基础上,对上述岩石流体包裹体进行了初步研究。不同自生矿物或不同期次的胶结矿物捕获的包裹体,其组成和物理化学性质不同,这些特征是油气藏形成演化历史的直接标志。通过包裹体测温资料、成岩矿物期次以及均一化温度、冰点温度、盐度和密度等分析,对流体包裹体在鄂尔多斯盆地西北部油气田形成、演化中的应用作了初步探讨。

A study of diagenesis and fluid inclusions for the Upper Paleozoic sandstone in the Ordos basin indicates that fluid inclusions in various authigenic minerals and cements are different in composition and physical and chemical property which is direct criteria for evolution of petroleum reservoir. This paper makes an approach to the application of fluid inclusion geochemistry to formation and evolution of petroleum reservoir in the northwest Ordos Basin.