华庆油田B153井区长6_3砂层组沉积相特征及演化模式  

Sedimentary Facies and Evolution of Chang 6_3 Sand Group of Yanchang Formation in B153 Block,Huaqing Oilfield

作　　者：刘丽[1] 赵应成[1] 王友净[1] 蒋天昊 闫林辉[1] 韩光顺 

机构地区：[1]中国石油天然气股份有限公司勘探开发研究院,北京100083 [2]中国石油长庆油田分公司第十采油厂地质研究所,甘肃庆阳745100

出　　处：《地质科技情报》2016年第1期94-100,共7页Geological Science and Technology Information

基　　金：中国石油重大科技专项(2011B-1205);中国石油勘探与生产公司专项"特低渗透油藏水驱提高采收率关键技术"

摘　　要：综合利用岩心、测井、粒度以及物性分析等资料，对华庆油田B153井区长6_3砂层组沉积相展布特征及模式进行了系统研究。结果表明：研究区发育砂质碎屑流、浊流和深湖一半深湖3种沉积亚相，其中，长6。底部为深湖一半深湖沉积，顶部主要为非水道化砂质碎屑流舌体沉积，舌体前端或边缘见少量的席状或透镜状浊流沉积；单一砂质碎屑流舌体宽422～737m，长737～2087m；舌体之间叠置样式为孤立型、侧叠型或堆叠型；砂质碎屑流的叠加样式及其与浊流的发育程度受基准面旋回的影响。Based on the analysis of the data of core, logging, thin sections and physical property, a system- atic study of the sedimentary facies distribution and evolution model was conducted. The results indicate that three types of subfacies, including sandy debris flows, turbidity and deep or semi-deep lacustrine, were recognized in Chang 6_3 sand group in B153 block of Huaqing Oilfield. The bottom of Chang 6_3 devel- oped deep or semi-deep lacustrine deposits, and the top interval mainly developed non-channelized sandy debris tongues and minor turbidity deposits located in the front or edge of debris tongues in the shape of sheet or lens. The width of a single debris tongue ranges from 422 m to 737 m, and the length is between 737 m and 2 087 m. The superimposed styles of debris tongues include amalgamated flows, stack flows and isolated flows. The base level cycles have great influence on the stacking patterns and the development of debris flows and the turbidity.

关 键 词：砂质碎屑流 浊流 沉积模式 长6_3砂层组 华庆油田 

分 类 号：P618.130.2[天文地球—矿床学]