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基于X射线衍射数据的细粒沉积岩岩石定名方法与应用

鄢继华?蒲秀刚?周立宏?陈世悦?韩文中   

  1. 1 中国石油大学(华东);2 中国石油大港油田公司
  • 发布日期:2015-05-20
  • 作者简介:鄢继华(1977-),男,辽宁盘锦人,博士,2006 年毕业于中国石油大学(华东),副教授,现主要从事沉积学和储层地 质学的教学和科研工作。地址:山东省青岛市黄岛区长江西路66 号,邮政编码:266580,E-mail: upcyanjihua@sina.com
  • 基金资助:
    国家自然科学基金项目济阳坳陷泥页岩沉积微相及储层微观结构研究(41372107);中央高校基本科研业务费专项资金项目(断 陷湖盆碳酸盐岩沉积模式及优质储层评价12CX04005A)

Naming Method of Fine-grained Sedimentary Rocks on Basis of X-ray Diffraction Data

Yan Jihua1, PuXiugang2, Zhou Lihong2, Chen Shiyue1, Han Wenzhong2   

  1. 1 China University of Petroleum (East China); 2 PetroChina Dagang Oilfield Company
  • Published:2015-05-20

摘要: 系统、科学的岩石分类方案是细粒沉积岩研究的基础。通过对沧东凹陷官× 井孔二段细粒沉积岩岩石 矿物组分的详细分析,提出了基于X 射线衍射数据的细粒沉积岩岩石分类方案。该方案为三端元、四组分划分体系, 以碳酸盐矿物、黏土矿物和长英质矿物为3 个端元,将细粒沉积岩划分为细粒长英沉积岩类、碳酸盐岩类、黏土岩类、 细粒混和沉积岩类等4 大类、12 种岩石类型,同时将特征矿物方沸石作为第四组分,依据其具体含量对岩石进行具 体定名。以此方案为分类基础,可统一细粒沉积岩岩石分类体系,促进细粒相区非常规油气地质研究与勘探开发工作。

Abstract: A scientific classification scheme of rocks is the basis for study of fine-grained sedimentary rocks. Based on analysis of the mineral components of fine-grained sedimentary rock from Guan-X Well drilled on the second member of Kongdian Formation in Cangdong Depression, this paper comes up with the scheme for classification of fine-grained sedimentary rocks on the basis of X-ray diffraction data. This scheme is a three-unit four-component division system. The three units are carbonate minerals, clay minerals and felsic minerals. Finegrained sedimentary rocks are divided into 12 types of rock in four main categories, such as fine-grained felsic sedimentary rock, carbonate rock, clay and fine-grained mixed sedimentary rock. Meanwhile, with analcime taken as the fourth component, fine-grained sedimentary rocks are named according to the concrete content of analcime. This scheme can unify the classification system of fine-grained sedimentary rocks and promote unconventional hydrocarbon exploration and development in the fine-grained facies zones.