H凹陷三叠系小泉沟群地震相分析

在中国西部许多陆相盆地中，发育了多种各样的砂岩储集体，这些砂体在不同的沉积环境、不同的相带中有规律地分布着。文中对西部某盆地Ｈ凹陷三叠系小泉沟群地震相和沉积相进行了较详细的研究；分析了该组的岩性特征、地震相特征和剖面沉积相特征，指出了各种沉积相中的主要砂体类型及有利的含油气相带。

A Study on the Sedimentary Facies of Xiaoquangou Group in H Sag

Various sandstone reservoirs are developed in many continental basins in westof China,which are distributed regularly in different sedimentary facies belts of different sedimentary environments.This paper presents a detailed study of seismic facies and sedimentary facies of Xiaoquangou group of Triassic system in H Sag in some western basins,and analyzes their stratigraphic,seismic facies and sedimentary facies.And it finally points out the main types of sand body andhydrocarbon-bearing facies belts in various sedimentary facies.