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大情字井地区青一段沉积微相分布特征
断块油气田
2006年 13卷 第06期
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Title
Distribution of Sedimentary Microfac ies of First Section of Qingshankou Format ion in Daqingzijing Area
单位
( 1 中国地质大学, 北京100083; 2 吉林油田勘探事业部, 吉林松原138001 )
Organization
1. China University of Geosciences,
Beijing 100083; 2. Exploration Depar tment, Jilin O ilf ie ld
Company, CNPC, Songyuan 138001, China
摘要
根据松辽盆地南部大情字井地区的单井相、剖面相分析, 在青山口组一段沉积时
期, 湖水继续扩张, 自下而上湖水到青一段沉积末期扩张到最大。在本区青一段主要发育分流
河道、分流间湾、水下分支河道、河道间、河口坝和席状砂等沉积微相类型。其中河口坝砂岩在
青山口组内广泛发育, 是最重要的储层微相类型。
Abstract
Based on the ana ly sis of s ing le we ll facies and section
fac ies, the lake went on expand ing dur ing Q ingshankou
Fo rma tion depos ition and expanded to the m ax from bottom to
top in the end o f the first section o f depos ition period. In this
area, the first section o f Q ingshankou fo rm ation ma in ly
developed sedim entary m icro fac ies o f d istributary channe,l
interd istr ibu to ry bay, underwa ter branch channe,l
interchanne ,l mouth ba r and sand sheet, in wh ich the mouth
bar sand deve loped mo st w ide ly in the first section of
Q ingshankou form ation. It is the m ost important type of
reservo irm icro facies.
关键词：
沉积特征; 大情字井地区; 青山口组一段;
Keywords:
Sedim en tary character istics, Daq ing zijing
area, First sec tion o f Q ing shankou fo rm ation;
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