Effection of Organic Acids on Sandstone Densification in Shanxi Formation Coal Source Rocks in Ordos Basin
Available Online June 2018.
- https://doi.org/10.2991/icmmct-18.2018.26How to use a DOI?
- coal source rock, organic acid, tight sandstone
- By means of core observation, conventional thin slice, cathodoluminescence, scanning electron microscopy, and basin simulation, the environment cause of the sandstone micropore in the reservoir were analysed, the organic fluid and the densification development of the reservoir were studied. The results show that the source rock of coal is dominated by III kerogen. In the process of thermal evolution, a large number of aryl structure and oxygen containing functional groups fall off, III kerogen generate more organic acids than ?...?,?...? kerogen, it have a stronger transformation effect on quartz sandstone. In the acidic micropore environment, quartz have multiple secondary enlargement and authigenic clay minerals occupied pores, the inorganic minerals ( such as feldspar, cuttings ) are dissolved. With the evolution of diagenesis, the pores are density , the organic acids in the source rocks of coal are the important reasons for the densification of sandstone.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Hua Zhang PY - 2018/06 DA - 2018/06 TI - Effection of Organic Acids on Sandstone Densification in Shanxi Formation Coal Source Rocks in Ordos Basin BT - 2018 6th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2018) PB - Atlantis Press SP - 135 EP - 140 SN - 2352-5401 UR - https://doi.org/10.2991/icmmct-18.2018.26 DO - https://doi.org/10.2991/icmmct-18.2018.26 ID - Zhang2018/06 ER -