苏北盆地古近系泥页岩有机质孔发育特征及影响因素

通过对苏北盆地古近系泥页岩研究并结合美国Marcellus页岩研究成果,定义有机质孔的概念,归纳有机质孔的类型及特征,探讨有机质孔发育的影响因素并总结有机质孔演化规律。结果表明：有机质孔泛指在有机质内部或边界处发育并与有机质具有成因联系的所有孔隙,包括原生有机质孔和次生有机质孔两类;有机质孔形态多样,分布具有非均质性,特别当有机质孔大量发育时,其内部结构是具有层状格架的似蜂窝状连通体;温度、上覆岩层压力、无机矿物和流体是影响有机质孔发育的外部条件,有机质类型、有机质成熟度和有机质含量是控制有机质孔发育的内部因素;苏北盆地古近系泥页岩实际样品和热模拟实验样品中有机质孔均表现出阶段性演化特征,这与...

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Bibliographic Details
Published in中国石油大学学报（自然科学版） Vol. 41; no. 3; pp. 1 - 13
Main Author 马存飞 董春梅 栾国强 林承焰 刘小岑 段宏亮 刘世丽
Format Journal Article
LanguageChinese
Published 中国石油大学地球科学与技术学院,山东青岛,266580%中国石油大学地球科学与技术学院,山东青岛266580 2017
山东省油藏地质重点实验室,山东青岛266580
中石油油气储层重点实验室中国石油大学研究室,山东青岛266580%中国石化江苏油田分公司地质科学研究院,江苏扬州,225009
Subjects
外部条件
总有机碳
显微组分
有机质孔
有机质成熟度
演化规律
类型及特征
显微组分
organic-matter pore
maturity
总有机碳
type and characteristic
外部条件
external condition
演化规律
有机质成熟度
有机质孔
evolution rule
maceral composition
类型及特征
total organic carbon
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ISSN1673-5005
DOI10.3969/j.issn.1673-5005.2017.03.001

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Summary:通过对苏北盆地古近系泥页岩研究并结合美国Marcellus页岩研究成果,定义有机质孔的概念,归纳有机质孔的类型及特征,探讨有机质孔发育的影响因素并总结有机质孔演化规律。结果表明：有机质孔泛指在有机质内部或边界处发育并与有机质具有成因联系的所有孔隙,包括原生有机质孔和次生有机质孔两类;有机质孔形态多样,分布具有非均质性,特别当有机质孔大量发育时,其内部结构是具有层状格架的似蜂窝状连通体;温度、上覆岩层压力、无机矿物和流体是影响有机质孔发育的外部条件,有机质类型、有机质成熟度和有机质含量是控制有机质孔发育的内部因素;苏北盆地古近系泥页岩实际样品和热模拟实验样品中有机质孔均表现出阶段性演化特征,这与干酪根热解生烃过程中的组构演化和生烃机制密切相关。
Bibliography:organic-matter pore; type and characteristic ; external condition ; maceral composition ; total organic carbon ; maturity; evolution rule
Based on the study of Paleogene shale in Subei Basin,and combining results of the Marcellus shale,this paper defined the concept of organic-matter pore,summarized its types and characteristics,discussed its influencing factors and fi-nally concluded evolution rule of organic-matter pore. The results show that organic-matter pores generally refer to pores which are within or at the boundary of organic matter and are genetically associated with it,and they include primary and sec-ondary organic-matter pores. Organic-matter pores display various shapes and are distributed heterogeneously. Especially when they are well developed,the internal structure is a honeycomb connecting component in the layered framework. Tem-perature, overburden pressure, inorganic mineral and fluid are the external conditions influencing the development of organic- matter pores and organic matter type,
ISSN:1673-5005
DOI:10.3969/j.issn.1673-5005.2017.03.001