Study on Ultimate Recovery Efficiency and Tapping Potential of Tight Sandstone Gas Reservoirs- Taking Shan2 Gas Reservoir of Zizhou Gas Field as an Example

DOI

10.2991/978-94-6463-606-2_37How to use a DOI?

Keywords

tight sandstone gas reservoir; ultimate recovery efficiency; latent capacity of tapping potential; determination method; Zizhou gas field; Shan-2 gas reservoir

Abstract

Ultimate recovery efficiency is the recovery efficiency of gas reservoir with perfect well pattern. It is of great significance to evaluate the ultimate recovery efficiency of gas reservoir and to determine the tapping potential of gas reservoir. At present, there are few researches on ultimate recovery efficiency, and the main reason is the lack of effective evaluation methods. This paper starts from the reserves and their utilization laws of gas fields, and establishes a reserves utilization zoning model and proposes a method for determining the ultimate recovery efficiency of gas fields - reserves analysis method. Taking the Shan2 tight sandstone gas reservoir in Zizhou gas field of Ordos Basin as an example, this method is applied to evaluate the ultimate recovery efficiency of gas reservoir and determine the tapping potential of gas reservoir. The results show that the ultimate recoverable reserves of Shan2 gas reservoir in Zizhou Gas field are 517.9 × 10⁸m³ and the ultimate recovery efficiency is 47.8%, the current recoverable reserves are 333.7 × 10⁸m³ and the current recovery efficiency is 30.8%, the potential recoverable reserves of the gas reservoir are 184.2 × 10⁸m³ and the recovery potential is 17%. The research results provide a new technical approach for assessing the ultimate recovery efficiency of tight sandstone gas reservoirs, and have important guiding significance for similar gas reservoirs.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Jinyou Dai
AU  - Zhiwen Du
AU  - Xizhen Lei
AU  - Guangjun Xu
AU  - Xiaoke Gong
AU  - Xiaolan Lei
PY  - 2024
DA  - 2024/12/24
TI  - Study on Ultimate Recovery Efficiency and Tapping Potential of Tight Sandstone Gas Reservoirs- Taking Shan2 Gas Reservoir of Zizhou Gas Field as an Example
BT  - Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)
PB  - Atlantis Press
SP  - 356
EP  - 366
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-606-2_37
DO  - 10.2991/978-94-6463-606-2_37
ID  - Dai2024
ER  -