Study on Reservoir Characteristics and Physical Property Lower Limit of Fengcheng Formation Tight Reservoir in South Slope of Mahu Sag

Zongbin Zhang, Jun Qin, Mengyun Han, Zhongchen Ba, Xinyu Chen, Jiang He

2021

Abstract

Fan deltaic depositional system is developed in the Permian Fengcheng Formation of Kebai area on the south slope of Mahu sag, the reservoir with ultra-low porosity, permeability and strong heterogeneity. The characteristics and lower limit of reservoir were analyzed using core and thin section observation, pore structure test. The reservoirs are mainly developed in intergranular pores of sandy conglomerate, intergranular solution pores and unfilled half-filled pores of basalt, matrix and bainite solution pores. On the one hand, the reservoir properties are affected by sedimentation, on the other hand, it is caused by the destruction of pore space by illite, illite / Montmorillonite Mixed Minerals and other clay minerals. The lower limits of reservoir porosity of P1f3, P1f21 and P1f22 are 5%, 3.5% and 3.8%, respectively and the lower limits of permeability are 0.013 mD, 0.02 mD and 0.02 mD, respectively. This study discussed the controlling factors of the lower limit of reservoir properties, which provides support for the exploration of conglomerate reservoir.

Paper Citation

in Harvard Style

Zhang Z., Qin J., Han M., Ba Z., Chen X. and He J. (2021). Study on Reservoir Characteristics and Physical Property Lower Limit of Fengcheng Formation Tight Reservoir in South Slope of Mahu Sag. In Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE, ISBN 978-989-758-560-9, pages 504-512

in Bibtex Style

@conference{wre21,
author={Zongbin Zhang and Jun Qin and Mengyun Han and Zhongchen Ba and Xinyu Chen and Jiang He},
title={Study on Reservoir Characteristics and Physical Property Lower Limit of Fengcheng Formation Tight Reservoir in South Slope of Mahu Sag},
booktitle={Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE,},
year={2021},
pages={504-512},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={978-989-758-560-9},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE,
TI - Study on Reservoir Characteristics and Physical Property Lower Limit of Fengcheng Formation Tight Reservoir in South Slope of Mahu Sag
SN - 978-989-758-560-9
AU - Zhang Z.
AU - Qin J.
AU - Han M.
AU - Ba Z.
AU - Chen X.
AU - He J.
PY - 2021
SP - 504
EP - 512
DO -