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混积岩分类命名体系探讨及对混积岩储层评价的启示——以渤海海域混积岩研究为例
投稿时间:2018-03-25  修订日期:2018-06-07  点此下载全文
引用本文:叶茂松,解习农,徐长贵,杜晓峰,宋章强,杜学斌.2018.混积岩分类命名体系探讨及对混积岩储层评价的启示——以渤海海域混积岩研究为例[J].地质论评,64(5):1118-1131
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作者单位E-mail
叶茂松 1) 中国地质大学(武汉)构造与油气资源教育部重点实验室武汉430074 yeyegood3344@163.com 
解习农 1) 中国地质大学(武汉)构造与油气资源教育部重点实验室武汉430074 xnxie@cug.edu.cn 
徐长贵 2) 中海石油(中国)有限公司天津分公司渤海油田勘探开发研究院天津塘沽300452  
杜晓峰 2) 中海石油(中国)有限公司天津分公司渤海油田勘探开发研究院天津塘沽300452  
宋章强 2) 中海石油(中国)有限公司天津分公司渤海油田勘探开发研究院天津塘沽300452  
杜学斌 1) 中国地质大学(武汉)构造与油气资源教育部重点实验室武汉430074  
基金项目:本文为国家自然科学基金面上资助项目(编号:41772111)的成果。
中文摘要:混积岩是一种普遍而重要的岩石组合类型。然而长期以来,对混积岩的岩石学分类与命名一直存在诸多争议,且尚未有统一的分类体系与命名规则。本文结合渤海海域混积岩岩石薄片组分鉴定、岩石储层物性分析等最新研究成果,并与相关文献结合,最终确立以陆源碎屑物、生物成因碳酸盐颗粒、化学沉淀碳酸盐为三组分端元的一套新的混积岩岩性分类体系,并将混积岩分为四大类、十六种亚类。通过讨论混积岩混积层系及混积岩组构界定的问题,进一步完善了混积岩定义。利用新的岩石学分类方案,可为储层评价研究提供指导。以渤海海域为例,建立起研究区不同岩性相与储层物性的对应关系,并在岩性分类体系中划分出差储层、中等储层及优质储层三个储层区。
中文关键词:混积岩  分类命名  混积层系  陆源碎屑下限值  岩性相  储层物性
 
Discussion for Classification—designation System of Mixed Siliciclastic —Carbonate Sediments and the Implication for Their Reservoir Prediction——A Case Study of Mixed Sediments from Bohai Sea Area
NameInstitution
YE Maosong1) Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, 430074
XIE Xinong1) Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, 430074
XU Changgui2) Exploration and Development of Research Institute of Bohai Oil Field, Tianjin Branch, CNOOC Ltd, Tanggu, Tianjin, 300452
DU Xiaofeng2) Exploration and Development of Research Institute of Bohai Oil Field, Tianjin Branch, CNOOC Ltd, Tanggu, Tianjin, 300452
SONG Zhangqiang2) Exploration and Development of Research Institute of Bohai Oil Field, Tianjin Branch, CNOOC Ltd, Tanggu, Tianjin, 300452
DU Xuebin1) Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, 430074
Abstract:Mixed siliciclastic—carbonate sediment is quite a common and significant type of petrological association. However, there are enormous controversies that have a long period in the classification and designation of mixed sediments and a standard devoted to petrological classification and naming rule has not been produced. Combined with relevant literatures as well as the latest achievements including component identification of thin section and petrophysics analysis of reservoir in Bohai Sea area, this paper establishes a new classification system of mixed sediments whose endpoints consist of terrigenous grains, biogenic carbonate particles and chemical carbonate respectively and the classified results of the mixed sediments are grouped into 4 main categories and 14 subcategories. Furthermore, we renew the concept of mixed sediments through the discussion that contain alternated strata of mixtures and define of the textural content.By means of the new petrological classification, it may offer the instruction for the study of reservoir assessment. Taking BoHai Sea area as example, the corresponding relation between the different reservoir properties and lithofacies has been established. We are likely to identify different types of reservoir including poor, moderate and excellent grade in this new classified system.
keywords:mixed siliciclastic—carbonate sediments  petrological classification  naming rule  mixed bed series  lower limiting value of terrigenous grains  lithofacies  reservoir properties
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