多类型河流体系沉积模式及对油气的控制作用  

Control of Multi-Type River Sedimentary Models on Oil and Gas

作　　者：褚庆忠[1] 武泽[1] 王连进[1] 邵先杰[1] 刘英杰[1] 

机构地区：[1]燕山大学,河北秦皇岛066004

出　　处：《特种油气藏》2014年第3期23-27,151-152,共5页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项项目"大型油气田及煤层气开发"(2011ZX05038)

摘　　要：依据岩心、化验分析及测井等资料,详细分析了渤海湾地区秦皇岛32-6油田高弯度曲流河、低弯度曲流河和辫状河等3种河流沉积体系的沉积微相类型及特征。通过对沉积基准面变化规律的分析,研究了3种河流类型在纵向上的交互沉积模式。不同河流沉积体系的沉积微相类型及砂体结构特征不同,从而表现出了不同的储集性能和含油气丰度。曲流点坝微相含油丰度最高,其他依次为辫状河道、决口扇、低弯度曲流河道和高弯度曲流河废弃河道微相。研究结果可为下一步的滚动勘探提供目标地区和层位。Based on data of cores,experimental analysis and well logging,the sedimentary microfacies types and characteristics of 3kinds of river depositional systems,highly bending,lowly bending meandering river and braided river of Qinghuangdao 32-6 Oilfield in Bohai Bay Area were analyzed. Based on the analysis of changing patterns of sedimentary base level,the interactive sedimentary models of the 3 kinds of rivers in vertical direction were examined. Different in sedimentary microfacies types and characteristics of sand body structure,different river sedimentary systems show different storage properties and hydrocarbon abundance. In terms of hydrocarbon abundance,the microfacies of point bar of meandering river is the highest,followed by microfacies of braided river channel,flood fan,low sinuous meandering river,highly bending meandering river and abandoned channel. This research pointed out targeted zones and formations for further progressive prospecting.

关 键 词：秦皇岛32—6油田 沉积模式 辫状河 曲流河 含油气丰度 

分 类 号：TE121[石油与天然气工程—油气勘探]