成都理工大学学报（自然科学版）Issue(3)：361-365,5.DOI:10.3969/j.issn.1671-9727.2015.03.13
富有机质页岩有机质孔发育差异性探讨以四川盆地五峰组－龙马溪组笔石页岩为例
Difference of organic pores in organic matter:A case from graptolite shales of Wufeng Formation-Longmaxi Formation in Sichuan Basin,China
摘要
Abstract
The paper discusses the difference of organic pores developing in the organic-rich shales and provides a theoretical basis for exploration and development of shale gas.By SEM with 1 500 times and 25 000 times,the organic graptolite shales of Wufeng Formation-Longmaxi Formation in Sichuan Basin are observed.The results show that the organic macerals such as graptolites,kerogens and solid bitumens are abundant and the organic pores develop well.The development of the organic pores in different organic macerals or in the same organic maceral exits differences.The organic pores in the larger individual solid bitumens develop best,that in kerogens develop better and that in graptolites do not develop. The organic pores are formed as organic carbon transforms to hydrocarbons or carbonaceous residues.The features of rich carbon and poor hydrogen in graptolites lead to organic pores to develop poor.The kerogens with different parent matter have different hydrocarbon-generating potentials and thus decide the difference of development of organic pores.The pores in solid bitumen organic matter are formed during the course of crude oil cracking and their development is related with the spaces of the intergranular pores existing in the crude oil.关键词
五峰组-龙马溪组/有机质孔/差异性Key words
Wufeng Formation-Longmaxi Formation/organic matter/pore/difference分类
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魏志红..富有机质页岩有机质孔发育差异性探讨以四川盆地五峰组－龙马溪组笔石页岩为例[J].成都理工大学学报（自然科学版）,2015,(3):361-365,5.
