Reserve Evaluation and Remaining Recoverable Reserves In Block X of the Sulige Gas Field

DOI

10.2991/978-94-6463-708-3_57How to use a DOI?

Keywords

tight sandstone gas reservoir; Sulige gas field; reserve evaluation; remaining available reserves

Abstract

The Sulige Gas Field is a typical representative of China’s tight sandstone gas fields. As the development of the gas field gradually deepens, evaluating gas field reserves and studying the distribution of remaining recoverable reserves are particularly important. Because of this, Sulige Gas Field Area X is used as a typical area for the research, which primarily focuses on the volumetric method to calculate geological reserves, supplemented by the geological modeling method to calculate the geological reserves, classify the reserve types, and apply geostatistical methods to analyze the degree of reserve control from the horizontal and vertical perspectives to determine the four distribution patterns of remaining recoverable reserves. The results show that: 1. A reserve classification and evaluation system with an internal rate of return as the core can divide geological reserves into four categories: I, II, III, and IV. The distribution is influenced by sedimentary facies and reservoir heterogeneity in the study area; 2. There are four types of remaining recoverable reserves: uncontrolled well network type, complex sand body edge type, isolated sand body with thin lost layer type, and incomplete perforation type; 3. Uncontrolled reserves are the mainstay of remaining recoverable reserves, accounting for 49.39% of the H8 layer and 58.58% of the Shan 1 layer; 4. The remaining unutilized reserves can be mobilized by measures such as drilling new wells between wells, planar reaming, and sidetracking old wells in order to mobilize the uncontrolled reserves, the imperfect perforation reserves, and the remaining reserves in the isolated sand body of the thin lost layer in the well network, ultimately achieving an overall increase in the degree of recovery of the gas reservoir.

Copyright

© 2025 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.

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TY  - CONF
AU  - Sen Zheng
AU  - Jia Zhao
AU  - Qianru Shou
AU  - Lulu Hao
AU  - Ruifei Wang
PY  - 2025
DA  - 2025/05/09
TI  - Reserve Evaluation and Remaining Recoverable Reserves In Block X of the Sulige Gas Field
BT  - Proceedings of the 2024 10th International Conference on Advances in Energy Resources and Environment Engineering (ICAESEE 2024)
PB  - Atlantis Press
SP  - 536
EP  - 545
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-708-3_57
DO  - 10.2991/978-94-6463-708-3_57
ID  - Zheng2025
ER  -