he Diagenesis of Sandstone in the Sixth Oil Layer of the Upper Triassic Yanchang Formation in Baibao Area, Ordos Basin

DOI

10.2991/icseee-15.2016.186How to use a DOI?

Keywords

Diagenesis; Reservoirs; Yanchang Formation; Ordos Basin

Abstract

The properties of the reservoir sandstone mainly depend on the sedimentary environment and the diagenesis. The thoroughly research on the diagenesis of the sandstone reservoir in the sixth oil layer of the Upper Triassic Yanchang formation has been one of the core geological problems. The comprehensive analysis shows that the reservoir rock types are mainly fine-grained-powder fine-grained feldspar lithic sandstones and lithic arkoses; rocks have low compositional maturity and medium textural maturity. Sandstone generally experienced strong compaction transformation, mainly mechanical compaction, making the primary pores in sandstones significantly loss. Feldspar etc. often occurs apparent dissolution, and secondary pores widely developed. In addition, the sandstones also experienced late cementation and fracturing. The sandstone reservoirs are in the middle diagenetic stage B period.

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  - Wei Guo
AU  - Dexun Liu
AU  - Huaqing Xue
AU  - Xiaobo Li
PY  - 2016/04
DA  - 2016/04
TI  - he Diagenesis of Sandstone in the Sixth Oil Layer of the Upper Triassic Yanchang Formation in Baibao Area, Ordos Basin
BT  - Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering
PB  - Atlantis Press
SP  - 1049
EP  - 1052
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-15.2016.186
DO  - 10.2991/icseee-15.2016.186
ID  - Guo2016/04
ER  -