中亚南部湖盆浅水辫状河三角洲识别标志与沉积模式研究  

Identification Marks and Sedimentary Mode of Shallow Braided River Delta in the South of Central Asia

作　　者：张义娜 朱筱敏[2] 孙作兴[3] 

机构地区：[1]中海油研究总院勘探研究院,北京100027 [2]中国石油大学(北京)地球科学学院,北京102249 [3]中国石油勘探开发研究院,北京100083

出　　处：《石油天然气学报》2011年第7期28-31,5,共4页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05025);国家"973"规划项目(2009CB21940)

摘　　要：以岩心相、测井相、地震相为标志,通过对中亚南部湖盆Aryskum组古地理背景、砂体展布、水动力条件、沉积构造及地球物理响应等进行综合研究,认为其属于浅水粗粒辫状河三角洲沉积环境,主要发育浅水辫状河三角洲前缘亚相的水下分支河道和支流间湾沉积微相,其中,水下分支河道比较发育,不同方向的河道相互叠置,平面上连片分布,可形成有利的储集砂体。Based on core,logging and geophysical data,an integral study was conducted on paleogeographic background,sandbody distribution,hydrodynamic force condition,sedimentary structure and geophysical response of South Central Asia in Aryskum Formation.It is considered that it belongs to shallow and coarse braided river delta,underwater distributary channel and underwater interfluve are the main sedimentary microfacies,in which nnderwater distributary channels are well developed,channels from different directions superpose and stretches over sandbody spreaded in the plane,it is the favorable reservoir.

关 键 词：识别标志 沉积模式 浅水辫状河三角洲 中亚南部 Aryskum组 

分 类 号：P618.13[天文地球—矿床学]