十万大山地区下-中泥盆统白云岩成岩层序地层学研究  

Study on diagenesis-sequence stratigraphy of Lower-Middle Devonian dolostone in Shiwandashan area, Guangxi, China

作　　者：李国蓉[1] 曾允孚[1] 周心怀 于海波[1] 

机构地区：[1]成都理工大学"油气藏地质及开发工程"国家重点实验室,成都610059 [2]中国海洋石油公司渤海分公司

出　　处：《成都理工大学学报（自然科学版）》2004年第6期668-671,共4页Journal of Chengdu University of Technology: Science & Technology Edition

摘　　要：以广西十万大山地区下-中泥盆统白云岩为研究对象,在白云岩层序地层划分、白云岩或白云石成因类型认识的基础上,探索了白云岩成因类型发育与层序地层的关系,建立了区内下-中泥盆统层序地层框架内的白云石化作用模式,即高水位体系域晚期发育蒸发泵和渗透回流白云石化作用模式,Ⅰ型层序不整合界面期间发育大气水-海水混合白云石化作用模式;进一步探索了此种背景下,受层序和白云石化作用的控制,白云岩储层的发育分布特征,对于指导油气勘探有重要意义。Based on the study of sequence stratigraphy and genetic types of dolostone of Lower-Middle Devonian in Shiwandashan area of Guangxi, this paper studies the relationship between the genetic types of dolostone and sequence stratigraphy. It establishes the dolomitization models in third-order sequence stratigraphy of Lower-Middle Devonian, that is, the evaporative pumping dolomitization and seepage-reflux dolomitization model in the late period of highstand system tract and the dorag dolomitization mode in the period of Type Ⅰ dissolution surface forming. Furthermore, the dolostone reservoir characteristics and distribution in third-order sequence stratigrphy are discussed in the paper.

关 键 词：十万大山 下-中泥盆统 层序地层 白云石化模式 储层 

分 类 号：TE121.34[石油与天然气工程—油气勘探]