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中南大学学报(自然科学版)

Journal of Central South University

第43卷    第5期    总第213期    2012年5月

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文章编号:1672-7207(2012)05-1837-08
碳酸盐岩礁滩相储层分类
王小敏1, 2,樊太亮1, 2

(1. 中国地质大学(北京) 能源学院,北京,100083;
2. 中国地质大学(北京) 海相储层演化与油气富集机理教育部重点实验室,北京,100083
)

摘 要: 研究以岩石组构、孔隙结构和岩石物性三者之间的相互联系为基础,按照岩石结构成因类型、优势孔隙类型、孔隙结构/物性分类进行多层次划分,将晚古生代以后的孔隙型礁滩相储层分为4大类、10小类,其中细-粗粒间溶孔的残余颗粒灰岩、细-粗晶间孔的残余颗粒云岩、非组构选择性溶孔的结晶碳酸盐岩是主要的优质储层类型。此种分类方法兼顾储层的地质成因模式与其自身特定的渗透性、弹性声波等物理属性,有助于改善储层类型的测井等地球物理手段识别效果,对碳酸盐岩礁滩相储层建模及评价具有重要意义。

 

关键字: 碳酸盐岩礁滩;储层类型;孔隙结构;渗透率;物理属性;储层评价与预测

Classification of carbonate reef-shoal reservoir rocks
WANG Xiao-min1, 2, FAN Tai-liang1, 2

1. School of Energy Resources, China University of Geosciences, Beijing 10083, China;
2. Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism,
Ministry of Education, China University of Geosciences (Beijing), Beijing 100083, China

Abstract:Based on the relationships between rock fabrics and pore structure and reservoir petrophysical characteristics, carbonate reef-shoal reservoir rocks from the Late Paleozoic can be grouped into four broad categories and ten subcategories, successively according to genetic rock fabric types and dominant pore types, and pore structure/ petrophysics classifications. Among these reservoir rock types, the high-quality reservoirs mainly comprise residual grain limestones with medium-coarse interparticle pores, and residual grain dolostones with medium-coarse intercrystalline pores, and carbonate rocks with non-fabric selective dissolution pores. This rock-typing approach incorporates the geological genetic model and its own specific petrophysical properties including permeability and acoustic wave and electric conductivity, thereby helpful to facilitating the identification of reservoir rock types from various geophysical loggings, and fundamental to the modeling and characterization of carbonate reef-shoal reservoirs.

 

Key words: carbonate reef-shoals; reservoir rock types; pore structure; permeability; petrophysical property; reservoir characterization and prediction

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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