The development of shale micro nano-scale fractures and the relationship between its influencing factors and the micro-fracture space

DOI

10.2991/iccte-16.2016.143How to use a DOI?

Keywords

micro-fractures; Longmaxi Formation; shale gas; brittle mineral; JY1 well

Abstract

To explore the development and influence factors of shale micro-fractures, we used SEM and AFM to observe the shale samples of JY1 well. There are some factors from these pictures: the surfaces of JY1 well are ups and downs; the difference is up to micron level; the micro-fractures connected widely. These expand the reservoir space and storage shale gas. X-ray measured and analyzed mineral composition content of JY1 well, and its brittle mineral content is more than 70%, which it makes the development of micro-fractures good. Many AFM images were processed by the MATLAB software with the integral method. The ratio was calculated of effective volume of micro-fractures to actual shale volume (Percentage of micro-fractures for short). There is a good positive correlations relationship between BET, TOC, desorbed gas and organic pore with percentage of micro-fractures.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chunmei Yang
AU  - Yongqiang Bai
AU  - Lunwei Zhu
AU  - Mei Liu
PY  - 2016/01
DA  - 2016/01
TI  - The development of shale micro nano-scale fractures and the relationship between its influencing factors and the micro-fracture space
BT  - Proceedings of the 2016 International Conference on Civil, Transportation and Environment
PB  - Atlantis Press
SP  - 829
EP  - 832
SN  - 2352-5401
UR  - https://doi.org/10.2991/iccte-16.2016.143
DO  - 10.2991/iccte-16.2016.143
ID  - Yang2016/01
ER  -