PMID- 35962004
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220816
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 12
IP  - 1
DP  - 2022 Aug 12
TI  - Probabilistic analysis of water-sealed performance in underground oil storage 
      considering spatial variability of hydraulic conductivity.
PG  - 13782
LID - 10.1038/s41598-022-16960-3 [doi]
LID - 13782
AB  - For underground water-sealed oil storage, the spatial variability of the 
      surrounding rock has a significant impact on the water-sealed effect of a water 
      curtain system. This study presents a methodology for the probabilistic analysis 
      of water curtain performance in underground oil storage, considering the spatial 
      variability of hydraulic conductivity of the surrounding rock based on field 
      data. Anisotropic random fields representing the spatial variability of hydraulic 
      conductivity were established through spatial statistical analysis of field data 
      and introduced into the finite element model of underground oil storage for 
      water-sealed reliability analysis. The water-sealed performance of different 
      water curtain system schemes was studied using Monte Carlo simulation (MCS). The 
      results showed that the difference between the horizontal spatial correlation and 
      the vertical spatial correlation of the surrounding rock has a significant impact 
      on the water-sealed effect of the water curtain system. An excessively large 
      pressure of water curtain boreholes provided a small contribution to improving 
      water curtain performance. The distance between the water curtain holes and the 
      caverns had the less significant affecting the water-sealed reliability of the 
      storage cavern. Finally, the optimal design of the water curtain system is 
      discussed. This study provides valuable insights and a theoretical basis for the 
      optimisation of water curtain system design parameters for underground 
      water-sealed oil storage.
CI  - (c) 2022. The Author(s).
FAU - Zhang, Huijie
AU  - Zhang H
AD  - School of Engineering and Technology, China University of Geosciences (Beijing), 
      Beijing, 100083, People's Republic of China.
FAU - Zhang, Bin
AU  - Zhang B
AD  - School of Engineering and Technology, China University of Geosciences (Beijing), 
      Beijing, 100083, People's Republic of China. sc_zhb@cugb.edu.cn.
FAU - Li, Yajun
AU  - Li Y
AD  - School of Engineering and Technology, China University of Geosciences (Beijing), 
      Beijing, 100083, People's Republic of China.
FAU - Wang, Lei
AU  - Wang L
AD  - Department of Civil Engineering, University of the District of Columbia, 
      Washington, DC, 20008, USA.
FAU - Li, Yutao
AU  - Li Y
AD  - School of Engineering and Technology, China University of Geosciences (Beijing), 
      Beijing, 100083, People's Republic of China.
FAU - Shi, Lei
AU  - Shi L
AD  - School of Engineering and Technology, China University of Geosciences (Beijing), 
      Beijing, 100083, People's Republic of China.
FAU - Wang, Hanxun
AU  - Wang H
AD  - School of Engineering and Technology, China University of Geosciences (Beijing), 
      Beijing, 100083, People's Republic of China.
LA  - eng
GR  - No. 41972300, No. 41572301 and No. 40902086/National Natural Science Foundation 
      of China/
GR  - No. 2-65-2019-225, No. 2-65-2019-226/Fundamental Research Funds for the Central 
      Universities of China/
PT  - Journal Article
DEP - 20220812
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
SB  - IM
PMC - PMC9374700
COIS- The authors declare no competing interests.
EDAT- 2022/08/13 06:00
MHDA- 2022/08/13 06:01
PMCR- 2022/08/12
CRDT- 2022/08/12 23:18
PHST- 2022/02/25 00:00 [received]
PHST- 2022/07/19 00:00 [accepted]
PHST- 2022/08/12 23:18 [entrez]
PHST- 2022/08/13 06:00 [pubmed]
PHST- 2022/08/13 06:01 [medline]
PHST- 2022/08/12 00:00 [pmc-release]
AID - 10.1038/s41598-022-16960-3 [pii]
AID - 16960 [pii]
AID - 10.1038/s41598-022-16960-3 [doi]
PST - epublish
SO  - Sci Rep. 2022 Aug 12;12(1):13782. doi: 10.1038/s41598-022-16960-3.