| Issue |
E3S Web Conf.
Volume 271, 2021
2021 2nd International Academic Conference on Energy Conservation, Environmental Protection and Energy Science (ICEPE 2021)
|
|
|---|---|---|
| Article Number | 01016 | |
| Number of page(s) | 5 | |
| Section | Energy Development and Utilization and Energy Storage Technology Application | |
| DOI | https://doi.org/10.1051/e3sconf/202127101016 | |
| Published online | 15 June 2021 | |
Research on improving development effect of high-saturated reservoir in the late stage of water-flooding
1 Exploration and Development Research institute of HuaBei Oilfield Company, Renqiu 062552, China
2 The Fourth Exploit Factory of HuaBei Oilfield Company, Langfang 065000, China
3 Youxin Exploration and Development Services Co. Ltd of Huabei Oilfield Company, Renqiu 062552, China
* Corresponding author's e-mail: yjy_sxy@petrochina.com.cn
High-saturated reservoir is characterized by high saturation pressure and high gas-oil ratio. The effects of water flooding are easily influenced by the formation pressure and GOR, especially at the late stage. This article presents the relationship between the reasonable pressure maintenance level and GOR as well as water cut based on the actual characteristics of high-saturated reservoir. Then, the reservoir numerical simulation method is used to analyse the influence of pressure recovery rate and water cut rise under different injection-production ratios and injection-production methods. Research results show that the pressure maintenance level of high-saturated reservoir is larger than normal reservoirs. Bigger injection-production ratio results in not only faster pressure recovery rate but also higher water cut. Cyclic injection and production method under the maximum injection rate and liquid extraction amount can enhance oil recovery rate and control water cut rise at the same time, which plays a significant role in improving the development effect of water-flooding in high-saturated reservoirs at the late stage.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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