Microstructural characteristics of the Cretaceous Qingshankou Formation shale, Songliao Basin

Petroleum Exploration and Development. 2013;40(1):61-68

 

Journal Homepage

Journal Title: Petroleum Exploration and Development

ISSN: 2096-4803 (Print); 1876-3804 (Online)

Publisher: KeAi Communications Co. Ltd.

Society/Institution: Research Institute of Petroleum Exploration & Development, PetroChina

LCC Subject Category: Technology: Chemical technology: Oils, fats, and waxes: Petroleum refining. Petroleum products

Country of publisher: China

Language of fulltext: Chinese, English

Full-text formats available: PDF, HTML, XML

 

AUTHORS

Zhenkai HUANG (State 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 author)
Jianping CHEN (State 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)
Haitao XUE (Northeast Petroleum University, Daqing 163318, China)
Yijun WANG (The First Oil Production Plant of Daqing Oil Field Company, Daqing 163000, China)
Min WANG (Northeast Petroleum University, Daqing 163318, China)
Chunping DENG (State 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)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 15 weeks

 

Abstract | Full Text

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