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Chinese Geographical Science

, Volume 28, Issue 4, pp 707–716 | Cite as

Porosity Distribution Characteristics and Geological Analysis of Brine Storage Medium in the Qaidam Basin, Western China

  • Shuya Hu
  • Changlai Xiao
  • Xiujuan Liang
  • Quansheng Zhao
  • Guangcai Wang
  • Jianwei Zhang
  • Juan Feng
Article
  • 25 Downloads

Abstract

Underground brine is an unusual water resource that contains abundant mineral resources. It is distributed widely in the Qaidam Basin, western China, a hyperarid inland basin located in the northern Tibetan Plateau. Pores in the brine storage medium act as storage space and transmission channels of underground brine. Therefore, the porosity of brine storage medium determines its ability to store brine. In this study, Mahai Salt Lake was used as the research area as a modern saline lake located in the north area of the Qaidam Basin. A total of 100 porosity samples were collected from eight sampling points in two profiles of the research area at sampling depths of 1.30–314.78 m. The porosity distribution characteristics and influencing factors in brine storage medium were analysed according to the measured porosity data. Based on analysis of the pore structure characteristics, the brine storage medium contains intercrystalline pores, unlike conventional freshwater storage mediums. Moreover, the primary salt rock is susceptible to dissolution by lighter brine, facilitating the formation of secondary porosity. Due to the formation of secondary pores, a porosity greater than 20% remains even at buried depths greater than 100 m. Based on the geological statistical analysis, due to the geographic location, salt formation time, and depositional environment, the porosity values of Mahai Salt Lake do not exhibit a wider distribution, but also show more extreme values than a nearby salt lake. Based on the porosity characteristics by depth, due to the presence of secondary pores, flooding, stratigraphic static pressure, and other factors, porosity shows fluctuations with increasing depth.

Keywords

porosity brine storage medium distribution characteristics geological analysis salt lakes in Qaidam Basin 

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References

  1. Athy L F, 1930. Density, porosity, and compaction of sedimentary rocks. AAPG Bulletin, 14(1): 1–24.Google Scholar
  2. Casas E, Lowenstein T K, 1989. Diagenesis of saline pan halite: comparison of petrographic features of modern, quaternary and Permian Halites. Journal of Sedimentary Research, 59(11): 724–739. doi: 10.1306/212f905c-2b24-11d7-8648000102c1865dGoogle Scholar
  3. Chao Zhiming, Wang Huanling, Xu Weiya et al., 2014. Variation of permeability and porosity of sandstones with different degrees of saturation under stresses. Chinese Journal of Rock Mechanics and Engineering, 36(3): 665–680. (in Chinese)Google Scholar
  4. Chen Kezao, Yang Shaoxiu, Zheng Xiyu, 1981. The salt lakes on the Qinghai-Xizang Plateau. Acta Geographica Sinica, 36(1): 13–21. (in Chinese)Google Scholar
  5. Esteban M, Taberner C, 2003. Secondary porosity development during late burial in carbonate reservoirs as a result of mixing and/or cooling of brines. Journal of Geochemical Exploration, 78–79: 355–359. doi: 10.1016/s0375-6742(03)00111-0CrossRefGoogle Scholar
  6. Giles M R, Marshall J D, 1986. Constraints on the development of secondary porosity in the subsurface: Re-evaluation of processes. Marine and Petroleum Geology, 3(3): 243–255. doi: 10.1016/0264-8172(86)90048-6CrossRefGoogle Scholar
  7. He J, Liu X W, Yu Z et al., 2013. Factors influencing the porosity of gas hydrate bearing sediments. Science China: Earth Sciences, 56(4): 557–567. doi: 10.1007/s11430-012-4452-xCrossRefGoogle Scholar
  8. Liu Chenglin, Wang Mili, Jiao Pengcheng et al., 2002. Formation of pores and brine reserving mechanism of the aquifers in quaternary potash deposits in Lop Nur Lake, Xinjiang, China. Geological Review, 48(4): 437–443. (in Chinese)Google Scholar
  9. Liu Zhen, Shao Xinjun, Jin Bo et al., 2007. Co-effect of depth and burial time on the evolution of porosity for classic rocks during the stage of compaction. Geoscience, 21(1): 125–132. (in Chinese)Google Scholar
  10. Lowenstein T K, Spencer R J, Zhang P X, 1989. Origin of ancient potash evaporites: clues from the modem Nonmarine Qaidam basin of Western China. Science, 245(4922): 1090–1092. doi: 10.1126/science.245.4922.1090CrossRefGoogle Scholar
  11. Lowenstein T K, Risacher F, 2009. Closed basin brine evolution and the influence of Ca-Cl inflow waters: death valley and Bristol Dry Lake California, Qaidam Basin, China, and Salar de Atacama, Chile. Aquatic Geochemistry, 15(1–2): 71–94. doi: 10.1007/s10498-008-9046-zCrossRefGoogle Scholar
  12. Mei Dan, Liu Haixia, 2015. Sylvite industry development situation and the strategic significance of food security in China. China Mining Magazine, 24(5): 10–12. (in Chinese)Google Scholar
  13. MGMR (Ministry of Geology an Mineral Resources), 1987. Regulations for Water Sampling, Preservation and Determination, Ministry of Geology and Mineral Resources, the People’s Republic of China. Beijing: Geology Publishing House. (in Chinese).Google Scholar
  14. Ministry of Land and Resources of the People’s Republic of China, 2006. DZ/T 0130–2006 The specification of testing quality management for geological laboratories. Beijing: China Standard Press. (in Chinese)Google Scholar
  15. Muffler P, Cataldi R, 1978. Methods for regional assessment of geothermal resources. Geothermics, 7(2–4): 53–89. doi: 10.1016/0375-6505(78)90002-0CrossRefGoogle Scholar
  16. Okazaki K, Noda H, Uehara S et al., 2014. Permeability, porosity and pore geometry evolution during compaction of Neogene sedimentary rocks. Journal of Structural Geology, 62: 1–12. doi: 10.1016/j.jsg.2013.12.010CrossRefGoogle Scholar
  17. Putnis A, Mauthe G, 2001. The effect of pore size on cementation in porous rocks. Geofluids, 1(1): 37–41. doi: 10.1046/j.1468-8123.2001.11001.xCrossRefGoogle Scholar
  18. Schmidt V, McDonald D A, 1979a. The Role of Secondary Porosity in the Course of Sandstone Diagenesis. Tulsa, OK: SPEM, 175–207. doi: 10.2110/pec.79.26.0175Google Scholar
  19. Schmidt V, McDonald D A, 1979b. Texture and Recognition of Secondary Porosity in Sandstones. Tulsa, OK: SPEM, 209–225. doi: 10.2110/pec.79.26.0209Google Scholar
  20. Selley R C, 1978. Porosity gradients in North Sea oil-bearing sandstones. Journal of the Geological Society, 135(1): 119–132. doi: 10.1144/gsjgs.135.1.0119CrossRefGoogle Scholar
  21. Tan H B, Rao W B, Ma H Z et al, 2011. Hydrogen, oxygen, helium and strontium isotopic constraints on the formation of oilfield waters in the western Qaidam Basin, China. Journal of Asian Earth Sciences, 40(2): 651–660. doi: 10.1016/j.jseaes.2010.10.018CrossRefGoogle Scholar
  22. Wang Deming, 1986. General Hydrogeology. Beijing: Geological Publishing House. (in Chinese)Google Scholar
  23. Wang Mili, Yang Zhichen, Liu Chenglin, 1997. Potash Deposits and Their Exploitation Prospects of the Saline Lakes of the Northern Qaidam Basin. Beijing: Geological Publishing House. (in Chinese)Google Scholar
  24. Weyl P K, 1959. Pressure solution and the force of crystallization: a phenomenological theory. Journal of Geophysical Research, 64(11): 2001–2025. doi: 10.1029/jz064i011p02001CrossRefGoogle Scholar
  25. Wilson M J, Wilson L, Patey I, 2016. The influence of individual clay minerals on formation damage of reservoir sandstones: a critical review with some new insights. Clay Minerals, 49(2): 147–164. doi: 10.1180/claymin.2014.049.2.02CrossRefGoogle Scholar
  26. Xiao Changlai, 2010. Hydrological. Beijing: Tsinghua University Press. (in Chinese)Google Scholar
  27. Yu J Q, Gao C L, Cheng A Y et al., 2013. Geomorphic, hydroclimatic and hydrothermal controls on the formation of lithium brine deposits in the Qaidam Basin, northern Tibetan Plateau, China. Ore Geology Reviews, 50: 171–183. doi: 10.1016/j.oregeorev.2012.11.001CrossRefGoogle Scholar
  28. Yu Shengsong, 2000. Observation and Prediction of Dynamic Brine in First Mining Area of Chaerhan Salt Lake. Beijing: Science Press. (in Chinese)Google Scholar
  29. Yuan Jianqi, Yang Qian, Sun Dapeng et al., 1995. The Formation Conditions of the Potash Deposits in Charhan Saline Lake, Qaidam Basin, China. Beijing: Geological Publishing House. (in Chinese)Google Scholar
  30. Zhang Pengxi, Zhang Baozhen, 1993. The Cause of the Ancient Abnormal Potash Evaporite. Beijing: Geological Publishing House. (in Chinese).Google Scholar
  31. Zhang Y Y, Pe-Piper G, Piper D J W, 2015. How sandstone porosity and permeability vary with diagenetic minerals in the Scotian Basin, offshore eastern Canada: Implications for reservoir quality. Marine and Petroleum Geology, 63: 28–45. doi: 10.1016/j.marpetgeo.2015.02.007CrossRefGoogle Scholar
  32. Zhao W Z, Shen A J, Zheng J F et al., 2014. The porosity origin of dolostone reservoirs in the Tarim, Sichuan and Ordos basins and its implication to reservoir prediction. Science China: Earth Sciences, 57(10): 2498–2511. doi: 10.1007/s11430-014-4920-6CrossRefGoogle Scholar
  33. Zhou X, Fang B, Chen M Y et al., 2006. Predictive simulation of three exploitation schemes for the brines in the Bieletan section of the Charham Salt Lake, China. Environmental Geology, 49(7): 1021–1033. doi: 10.1007/s00254-005-0140-xCrossRefGoogle Scholar

Copyright information

© Science Press, Northeast Institute of Geography and Agricultural Ecology, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Shuya Hu
    • 1
    • 2
  • Changlai Xiao
    • 1
    • 2
  • Xiujuan Liang
    • 1
    • 2
  • Quansheng Zhao
    • 3
  • Guangcai Wang
    • 4
  • Jianwei Zhang
    • 3
  • Juan Feng
    • 3
  1. 1.Key Laboratory of Groundwater Resources and Environment of the Ministry of EducationJilin UniversityChangchunChina
  2. 2.College of Environmental and ResourcesJilin UniversityChangchunChina
  3. 3.Department of Environmental Science and EngineeringQingdao UniversityQingdaoChina
  4. 4.School of Water Resources and EnvironmentChina University of GeosciencesBeijingChina

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