| Issue |
E3S Web Conf.
Volume 292, 2021
2021 2nd International Conference on New Energy Technology and Industrial Development (NETID 2021)
|
|
|---|---|---|
| Article Number | 01014 | |
| Number of page(s) | 4 | |
| Section | Energy Storage Saving and New Energy Technology Development | |
| DOI | https://doi.org/10.1051/e3sconf/202129201014 | |
| Published online | 09 September 2021 | |
Effect evaluation and influencing factors of stratified water injection in low permeability reservoir
1 Yanchang Oilfield Limited Company, Yan’an Shaanxi 716000, China
2 Shaanxi Yanchang Petroleum(Group)Co, Ltd, Xi’an Shaanxi 710000, China
* Corresponding author: mma0405@sina.com
The main production layers in Danba oil area of Yanchang oilfield are Chang 4 + 5 and Chang 6 oil layers, which are the main development areas for increasing reserves and production. In view of the unclear influencing factors of water injection effect and the disunity of effect evaluation in the study area, the stratified water injection effect evaluation and influencing factors of low permeability reservoir are studied by means of production data statistical analysis and numerical simulation. The results show that the effect of water injection in the study area is affected by five factors: intraformational heterogeneity, interlayer heterogeneity, interlayer pressure difference, fracture and water injection timing, the results show that the water injection effect is obvious in the study area by using the five indexes of water drive reserves producing degree, water storage rate, water drive index, oil recovery rate and water drive control degree. The research results provide ideas for the study of high-efficiency separate layer water injection in low permeability reservoir, and provide guidance for the next step of potential mining.
© The Authors, published by EDP Sciences, 2021
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