Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin

To research the characteristics and petroleum geological significance of micro pores, this paper uses Second Electron Microscope (SEM) and secondary SEM imaging capability in Field Emission SEM (FE-SEM) to characterize shale from the first member of the Cretaceous Qingshankou Formation, Songliao Bas...

Full description

Bibliographic Details
Main Authors: Zhenkai HUANG, Jianping CHEN, Haitao XUE, Yijun WANG, Min WANG, Chunping DENG
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2013-02-01
Series:Petroleum Exploration and Development
Online Access:http://www.sciencedirect.com/science/article/pii/S1876380413600063
_version_ 1819295887340339200
author Zhenkai HUANG
Jianping CHEN
Haitao XUE
Yijun WANG
Min WANG
Chunping DENG
author_facet Zhenkai HUANG
Jianping CHEN
Haitao XUE
Yijun WANG
Min WANG
Chunping DENG
author_sort Zhenkai HUANG
collection DOAJ
description To research the characteristics and petroleum geological significance of micro pores, this paper uses Second Electron Microscope (SEM) and secondary SEM imaging capability in Field Emission SEM (FE-SEM) to characterize shale from the first member of the Cretaceous Qingshankou Formation, Songliao Basin. There are five major pore types in the shale, including matrix intercrystal, organic, dissolution, interparticle, and intracrystalline pores. In addition, there are a mass of micro-fractures of micron-submicron (nano-) scale, including dissolution, filled and interlayer fractures. The existence of complex fracture-pore systems provides an effective pathway for primary migration and it also provides ample storage space for the residual petroleum in shale, which is important for the primary migration and storage for shale oil and gas resources. Key words: Songliao Basin, shale, micro pore structure, micro fracture, reservoir
first_indexed 2024-12-24T04:49:21Z
format Article
id doaj.art-110813f99d3349eeadfa0b12b306dee5
institution Directory Open Access Journal
issn 1876-3804
language English
last_indexed 2024-12-24T04:49:21Z
publishDate 2013-02-01
publisher KeAi Communications Co., Ltd.
record_format Article
series Petroleum Exploration and Development
spelling doaj.art-110813f99d3349eeadfa0b12b306dee52022-12-21T17:14:36ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042013-02-014016168Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao BasinZhenkai HUANG0Jianping CHEN1Haitao XUE2Yijun WANG3Min WANG4Chunping DENG5State Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China; Key Laboratory of Petroleum Geochemistry, CNPC, Beijing 100083, China; Corresponding authorState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China; Key Laboratory of Petroleum Geochemistry, CNPC, Beijing 100083, ChinaNortheast Petroleum University, Daqing 163318, ChinaThe First Oil Production Plant of Daqing Oil Field Company, Daqing 163000, ChinaNortheast Petroleum University, Daqing 163318, ChinaState Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China; PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China; Key Laboratory of Petroleum Geochemistry, CNPC, Beijing 100083, ChinaTo research the characteristics and petroleum geological significance of micro pores, this paper uses Second Electron Microscope (SEM) and secondary SEM imaging capability in Field Emission SEM (FE-SEM) to characterize shale from the first member of the Cretaceous Qingshankou Formation, Songliao Basin. There are five major pore types in the shale, including matrix intercrystal, organic, dissolution, interparticle, and intracrystalline pores. In addition, there are a mass of micro-fractures of micron-submicron (nano-) scale, including dissolution, filled and interlayer fractures. The existence of complex fracture-pore systems provides an effective pathway for primary migration and it also provides ample storage space for the residual petroleum in shale, which is important for the primary migration and storage for shale oil and gas resources. Key words: Songliao Basin, shale, micro pore structure, micro fracture, reservoirhttp://www.sciencedirect.com/science/article/pii/S1876380413600063
spellingShingle Zhenkai HUANG
Jianping CHEN
Haitao XUE
Yijun WANG
Min WANG
Chunping DENG
Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin
Petroleum Exploration and Development
title Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin
title_full Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin
title_fullStr Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin
title_full_unstemmed Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin
title_short Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin
title_sort microstructural characteristics of the cretaceous qingshankou formation shale songliao basin
url http://www.sciencedirect.com/science/article/pii/S1876380413600063
work_keys_str_mv AT zhenkaihuang microstructuralcharacteristicsofthecretaceousqingshankouformationshalesongliaobasin
AT jianpingchen microstructuralcharacteristicsofthecretaceousqingshankouformationshalesongliaobasin
AT haitaoxue microstructuralcharacteristicsofthecretaceousqingshankouformationshalesongliaobasin
AT yijunwang microstructuralcharacteristicsofthecretaceousqingshankouformationshalesongliaobasin
AT minwang microstructuralcharacteristicsofthecretaceousqingshankouformationshalesongliaobasin
AT chunpingdeng microstructuralcharacteristicsofthecretaceousqingshankouformationshalesongliaobasin