渤海湾盆地埕岛地区东营组沉积特征及其油气地质意义
|
摘要
在岩心、钻测井、地震资料综合分析的基础上,确定渤海湾盆地埕岛地区东古近系在营组发育有较深水湖-浊积扇、扇三角洲-滑塌浊积扇、辫状三角洲、低弯度河-泛滥平原等沉积体系,并分析了其沉积相构成及特征。结果显示,古近系东营组沉积前的古地貌特征对东营组下部沉积具有明显的控制作用。在层序格架内沉积相构成分析的基础上,明确了沉积相的空间展布特征,并从储集砂体类型、储集砂体的分布位置、有利发育层系及空间展布特征等方面明确了沉积特征研究的油气地质意义。
The exploration focus in the Dongying Formation of Chengdao area,the Bohai Bay Basin is stratigraphic-lithologic reservoirs,to which the key is a correct understanding of deposition characteristics of reservoir sandbody.A comprehensive analysis of core,drilling/logging,and seismic data of the area,confirms the existence of sedimentary systems such as deeper lake-turbidite fan,fan delta-slump turbidite fan,braided delta,low-sinuosity stream-flood plain,and etc,and provides insights into the composition and features of these sedimentary facies.The results indicate that palaeogeomorphic characteristics before the deposition of the Dongying Formation show a strong controlling effect upon the deposition of the lower Dongying Formation.Based on sedimentary facies analysis within the sequence stratigraphic framework,the paper discusses the spatial distribution of these sedimentary facies and the petroleum geologic significances of the study on sedimentary features in such aspects as the types and distribution of reservoir sandbody,favorable strata,characteristics of spatial distribution,and so on.
The exploration focus in the Dongying Formation of Chengdao area,the Bohai Bay Basin is stratigraphic-lithologic reservoirs,to which the key is a correct understanding of deposition characteristics of reservoir sandbody.A comprehensive analysis of core,drilling/logging,and seismic data of the area,confirms the existence of sedimentary systems such as deeper lake-turbidite fan,fan delta-slump turbidite fan,braided delta,low-sinuosity stream-flood plain,and etc,and provides insights into the composition and features of these sedimentary facies.The results indicate that palaeogeomorphic characteristics before the deposition of the Dongying Formation show a strong controlling effect upon the deposition of the lower Dongying Formation.Based on sedimentary facies analysis within the sequence stratigraphic framework,the paper discusses the spatial distribution of these sedimentary facies and the petroleum geologic significances of the study on sedimentary features in such aspects as the types and distribution of reservoir sandbody,favorable strata,characteristics of spatial distribution,and so on.
引文
1孔凡仙.埕岛油田地质与勘探实践[M].北京:石油工业出版社,2000
2吴崇筠,薛叔浩.中国含油气盆地沉积学[M].北京:石油工业出版社,1992
3邓宏文,王红亮,祝永军,等.高分辨率层序地层学——原理及应用[M].北京:地质出版社,2002
4邓宏文.美国层序地层研究中的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89~97
5鲁国明,刘魁元.济阳坳陷高凸起斜坡带新近系油气成藏与勘探实践[J].石油与天然气地质,2006,27(2):258~262
6张善文.济阳坳陷第三系隐蔽油气藏勘探理论与实践[J].石油与天然气地质,2006,27(6):731~740,761
7韩文功,张建宁,王金铎.济阳坳陷隐蔽圈闭识别与精细描述[J].石油与天然气地质,2006,27(6):849~859
8靖辉,张晓武,赵铭海.新近系馆陶组上段储层预测方法——以济阳坳陷沾化凹陷垦东北部地区为例[J].石油与天然气地质,2007,28(3):401~406
9袁向春,钟建华,高喜龙,等.埕岛东斜坡水下扇沉积特征[J].石油与天然气地质,2003,24(2):146~151
10陈广军,宋国奇,王永诗.斜坡带低位扇砂岩体岩性油气藏勘探方法[J].石油学报,2002,23(3):34~38
11邓宏文,王洪亮.古地貌对陆相裂谷盆地层序充填特征的控制[J].石油与天然气地质,2001,22(4):293~296
12邓宏文,王洪亮,李熙哲.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177~184
2吴崇筠,薛叔浩.中国含油气盆地沉积学[M].北京:石油工业出版社,1992
3邓宏文,王红亮,祝永军,等.高分辨率层序地层学——原理及应用[M].北京:地质出版社,2002
4邓宏文.美国层序地层研究中的新学派——高分辨率层序地层学[J].石油与天然气地质,1995,16(2):89~97
5鲁国明,刘魁元.济阳坳陷高凸起斜坡带新近系油气成藏与勘探实践[J].石油与天然气地质,2006,27(2):258~262
6张善文.济阳坳陷第三系隐蔽油气藏勘探理论与实践[J].石油与天然气地质,2006,27(6):731~740,761
7韩文功,张建宁,王金铎.济阳坳陷隐蔽圈闭识别与精细描述[J].石油与天然气地质,2006,27(6):849~859
8靖辉,张晓武,赵铭海.新近系馆陶组上段储层预测方法——以济阳坳陷沾化凹陷垦东北部地区为例[J].石油与天然气地质,2007,28(3):401~406
9袁向春,钟建华,高喜龙,等.埕岛东斜坡水下扇沉积特征[J].石油与天然气地质,2003,24(2):146~151
10陈广军,宋国奇,王永诗.斜坡带低位扇砂岩体岩性油气藏勘探方法[J].石油学报,2002,23(3):34~38
11邓宏文,王洪亮.古地貌对陆相裂谷盆地层序充填特征的控制[J].石油与天然气地质,2001,22(4):293~296
12邓宏文,王洪亮,李熙哲.层序地层地层基准面的识别、对比技术及应用[J].石油与天然气地质,1996,17(3):177~184
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心