The Similar Experimental Study on the Concentration Field in Construction Period of the Storage of Salt Rock in Solution Mining

Abstract:

The Jin-tan underground energy storage of salt rock in Jiangsu Province as a demonstration project, Established a similar model experimental platform of concentration filed in construction period of salt caverns, which based on the similar theory of dimensional analysis. To analysis the concentration distribution and the concentration field variation in cavity. The study shows that: the brine concentration in the same horizontal plane is uniformly distributed beyond the boundary layer where has a higher concentration than other locations, but a continuous gradient distribution of brine concentration increases with depth in the vertical direction. In the vertical direction, the brine concentration gradient firstly increases and then decreases with the increase of the freshwater flow in the reverse circulation method. And in the vertical direction, the brine concentration gradient also firstly increases and then decreases with the increase of the distance between the two wash pipes in the reverse circulation method. Comparing with the reverse circulation method, the brine concentration gradient in the vertical direction is very insignificant with direct circulation. During the solution of mining of the salt cavity, the brine concentration increases as time goes on, and the rate of increase continues to decrease until the concentration field to stabilize.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 494-502
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.494
• Online since: May 2012
• Authors: De Yi Jiang, Hua Fu Qiu, Jie Chen, Song Ren
• Keywords: Brine, Concentration Field, Distance between Wash Pipes, Freshwater Flow, Salt Cavern Building

References

[1] Kazemi; Hossein; Jessen, F.W. Mechanism of Flow and Controlled Dissolution of Salt in Solution Mining[R]. SPE1007.(1964)

[2] Tao Zhiyong; Ma Zhenhe. The research of salt cavern 3D modeling technology[C].2009 Asia-Pacific Conference on Information Processing, APCIP,: 241-3|xvii+648. (2009)

DOI: 10.1109/apcip.2009.195

[3] Ehgartner B.L.; Park B.Y. Sensitivity of Storage Field Performance to Geologic and Cavern Design Parameters in Salt Domes. [R]: SAND2009-1278, (2009)

DOI: 10.2172/959108

[4] Fuenkajorn, K. Prediction of cavern configurations from subsidence data[J]. Engineering Geology, 2010, (110)1-2: 21-29

DOI: 10.1016/j.enggeo.2009.10.003

[5] JIANG Deyi, CHEN Jie, LIU Jianping et al. Experimental research on acoustic and dissolved properties of stress damaged salt rock[J]. Rock and Soil Mechanics, 2009. 30(12): 3569-3573

[6] LIANG Weiguo, XU Suguo,MO Jiang et al. Test study of strain rate effects on mechanical performances of salt rock [J]. Chinese Journal of Rock Mechanics and Engineering, 2010.29.(01):43-50

[7] ZHOU Hongwei,HE Jinming,U Zhide. Permeability and meso-structure characteristics of bedded salt rock[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(10):2068-2073.

[8] SHI Xilin,LI Yinping, YANG Chunhe et al. Test study of influence of brine on tensile strength of muddy intercalation[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(11):2301-2308.

[9] SHI Xilin,LI Yinping, YANG Chunhe et al. Research on mechanical of interlayer collapse in solution mining for salt cavern gas storage, 2009,30(12): 3615-3620 .

[10] YANG Chunhe,LI Yindan,QU Danan et al. Advance in researches of the mechanical behavios of bedded salt rocks [J]. Advances in Mechanics, 2008, (38)4:484-494.

[11] XI Baoping, ZHAO Yangsheng, ZHAO Yanlin et al. Investigation on rheodestruction and permeability of surrounding rock for long-term running storage cavern in bedded rock salt[J]. Rock and Soil Mechanics, 2008, 29(Suup.):241-246.