合水——塔儿湾地区长6沉积相研究  

Research on Sedimentary Facies of Chang 6 Oil-bearing Formation in HeShui-TaErWan Region

作　　者：陈朝兵[1,2] 朱玉双[1] 张杰[3] 王海华 程刚[5] 

机构地区：[1]西北大学大陆动力学国家重点实验室,陕西西安710069 [2]中国石油天然气股份有限公司长庆油田分公司第二采气厂,陕西西安710200 [3]中国石油天然气股份有限公司长庆油田分公司第一采油厂,陕西西安710018 [4]中国石油天然气股份有限公司长庆油田分公司第六采油厂,陕西西安710018 [5]中国石油天然气股份有限公司长庆油田分公司长庆油田档案馆,陕西西安710018

出　　处：《地下水》2012年第6期163-165,共3页Ground water

基　　金：国家重点基础研究发展计划(973)项目资助(2003CB214603)

摘　　要：通过对合水-塔儿湾地区41口钻井岩芯的轻重矿物、颜色、沉积构造、特征矿物、植物化石、岩石结构、测井相等特征的综合认识,对长6油层组进行了沉积环境分析,确定了研究区目的层为多方向物源供给,且以南部及东北部供给为主,沉积体系属于典型的半深湖相浊流沉积,以发育坡移浊积扇为主,其次为滑塌浊积扇。坡移浊积岩的主体骨架为中扇亚相,进一步可划分为辫状水道、辫状水道前缘、辫状水道间等微相,辫状水道微相是优质储层发育部位。Through comprehensive study on light and heavy minerals,color,sedimentary structures,characteristics of minerals and plant fossils,rock structure,logging equal characteristics of 41 drilling cores from the HeShui–TaErWan Area,the deposition environment of Chang 6 oil reservoir is given in the paper.Chang 6 oil reservoir occurred in typically semi-deep lacustrine turbidite environment with multiple-source supplying,mainly from the south and northeast of Ordos Basin.Slope turbidite fan is the main faceis,followed by slump turbidite fan.Mid-Fan is the main skeleton of slope turbidite fan,further divided into braided channel,front edge of the braided channel,inter-braided channel and some other microfacies.High-quality reservoir is always developed in braided channel microfacies.

关 键 词：鄂尔多斯盆地 长6油层组 物源 沉积微相 坡移浊积扇 

分 类 号：P618.130.1[天文地球—矿床学]