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Water absorption/dehydration by NMR and mechanical response for weakly cemented mudstones subjected to different humidity conditions

  • Shuai Wang
  • Lijun HanEmail author
  • Qingbin Meng
  • Yuhao Jin
  • Weisheng Zhao
Original Paper
  • 6 Downloads

Abstract

Mudstones of Bayanhua Formation are characterized by high porosity, large content of swelling clay minerals, and weak cementation due to its late diagenesis in Wujianfang Basin, eastern Inner Mongolia, China. Mechanical properties heavily deteriorate during water absorption or dehydration, resulting in underground engineering instability. To study water absorption/dehydration and mechanical response for weakly cemented mudstones, two sets of weathering routes, namely, higher relative humidity (RHs) and lower RHs, are performed by using a self-developed weathering instrument, which can achieve environmental control and real-time weight measurement. The water migration is logged by nuclear magnetic resonance (NMR). Finally, uniaxial compression tests are carried out on weathered samples to study their mechanical properties. The results show that dehydration occurs even under the 70% RH condition, due to their higher initial water content of more than 10%, and the dehydration content is exponential over time under the 60% RH condition. Variations of T2 spectrum reflect the water migration when the surrounding humidity changes. The maximum peak of the transverse relaxation time (T2) moves left during dehydration and shifts to the right when adsorbing water. The uniaxial compressive strength (UCS) does not increase with the decreasing RH at any time, which is distinct from elasticity modulus (E). There is a critical RH at 50%, indicating that damages accumulate when the RH is lower than 50%. Tensile fracture occurs for the most types of weathered samples, and shear failure only occurs under the drying condition.

Keywords

Weakly cemented mudstone Water adsorption/dehydration NMR Mechanical properties 

Notes

Funding information

This study was supported by the National Natural Science Foundation of China (Nos. 51574223 and 51704280), Guizhou Science and Technology Support Plan Project (GZSCCB, No. [2018]1061), and Guizhou Provincial Department of Education Youth Science and Technology Talent Growth Support Project (GZSCC No. [2017]219).

References

  1. Barast G, Razakamanantsoa AR, Djeran-Maigre I, Nicholson T, Williams D (2017) Swelling properties of natural and modified bentonites by rheological description. Appl Clay Sci 142:60–68CrossRefGoogle Scholar
  2. Chenevert ME, Pernot V (1998) Control of shale swelling pressures using inhibitive water-base muds. Proceedings of the Spe Annual Technical Conference and Exhibition. Soc Petrol Eng. New Orleans Louisiana, InCrossRefGoogle Scholar
  3. Corteel C, Dini A, Deyhle A (2005) Element and isotope mobility during water–rock interaction processes. Phys Chem Eart 30(17-18):993–996CrossRefGoogle Scholar
  4. Costabel S, Yaramanci U (2013) Estimation of water retention parameters from nuclear magnetic resonance relaxation time distributions. Water Resour Res 49(4):2068–2079CrossRefGoogle Scholar
  5. Cui DS, Xiang W, Cao LJ (2010) Experimental study on reducing thickness of absorbed water layer for red clay particles treated by Ionic Soil Stabilizer. Chin J Geotech Eng 32(6):944–949Google Scholar
  6. De Lima RP, Da Silva AP, Giarola NFB, Da Silva AR, Rolim MM, Keller T (2018) Impact of initial bulk density and matric suction on compressive properties of two Oxisols under no-till. Soil Tillage Res 175:168–177CrossRefGoogle Scholar
  7. Erguler ZA, Ulusay R (2009) Water-induced variations in mechanical properties of clay-bearing rocks. Int J Rock Mech Min Sci 46(2):355–370CrossRefGoogle Scholar
  8. Estabragh AR, Javadi AA (2014) Effect of soil density and suction on the elastic and plastic parameters of unsaturated silty soil. Int J Geomech 15(5):401–407Google Scholar
  9. Falzone S, Keating K (2016) A laboratory study to determine the effect of pore size, surface relaxivity, and saturation on NMR T-2 relaxation measurements. Near Surf Geophys 14(1):57–69CrossRefGoogle Scholar
  10. Feng XT, Chen S, Zhou H (2004) Real-time computerized tomography (CT) experiments on sandstone damage evolution during triaxial compression with chemical corrosion. Int J Rock Mech Min Sci 41(2):181–192CrossRefGoogle Scholar
  11. Fheed A, Krzyżak A (2018) Exploring a carbonate reef reservoir - nuclear magnetic resonance and computed microtomography confronted with narrow channel and fracture porosity. J Appl Geophys 151:343–358CrossRefGoogle Scholar
  12. Fisher LR, Israelachvili JN (1979) Direct experimental verification of the kelvin equation for capillary condensation. Nature 277:548–549CrossRefGoogle Scholar
  13. Guo HY, He MC, Sun CH, Li B, Zhang F (2012) Hydrophilic and strength-softening characteristics of calcareous shale in deep mines. J Rock Mech Geotech Eng 4(4):344–351CrossRefGoogle Scholar
  14. Howard JJ, Kenyon WE (1992) Determination of pore size distribution in sedimentary rocks by proton nuclear magnetic resonance. Mar Petrol Geol 9(2):139–145CrossRefGoogle Scholar
  15. Huang SL, Aughenbaugh NB (1986) Swelling pressure studies of shales. Int J Rock Mech Min Sci 23(5):371–377CrossRefGoogle Scholar
  16. Hunter RJ (2001) Foundations of Colloid Science. Oxford University PressGoogle Scholar
  17. Hussain R, Mitchell J, Hammond PS, Sederman AJ, Johns ML (2013) Monitoring water transport in sandstone using flow propagators: a quantitative comparison of nuclear magnetic resonance measurement with lattice Boltzmann and pore network simulations. Adv Water Resour 60:64–74CrossRefGoogle Scholar
  18. Kang HP, Wang JH, Lin J (2010) Case study of mine roadway support. Chin J Rock Mech Eng 29(4):649–664Google Scholar
  19. Kanji MA (2014) Critical issues in soft rocks. J Rock Mech Geotech Eng 6(3):186–195CrossRefGoogle Scholar
  20. Liu J, Neretnieks I (2006) Physical and chemical stability of the bentonite buffer. SKB report R-06-103. Swedish Nuclear Fuel and Waste Management, Stockholm, Sweden.Google Scholar
  21. Liu X, Xiong J, Liang L, Luo C, Zhang A (2014) Analysis the wettability of Longmaxi Formation shale in the south region of Sichuan Basin and its influence. Nat Gas Geosci 25(10):1644–1652Google Scholar
  22. Liu DQ, Wang Z, Zhang XY (2018) Experimental investigation on the mechanical and acoustic emission characteristics of shale softened by water absorption. J Nat Gas Sci Eng 50:301–308CrossRefGoogle Scholar
  23. Meng MM, Ge HK, Ji WM, Wang XQ (2016a) Research on the auto-removal mechanism of shale aqueous phase trapping using low field nuclear magnetic resonance technique. J Petrol Sci Eng 137:63–73CrossRefGoogle Scholar
  24. Meng QB, Han LJ, Pu H (2016b) Research and monitoring analysis of coal roadway bolting system in very weakly cemented stratum. J Chi Coal Soc 41(1):234–245Google Scholar
  25. Mohnke O, Jorand R, Nordlund C, Klitzsch N (2015) Understanding NMR relaxometry of partially water-saturated rocks. Hydrol Earth Syst Sci 19:2763–2773CrossRefGoogle Scholar
  26. Porion P, Ferrage E, Hubert F, Tertre E, Dabat T, Faugère AM, Delville A (2018) Water mobility within compacted clay samples: multi-scale analysis exploiting 1H NMR pulsed gradient spin echo and magnetic resonance imaging of water density profiles. ACS Omega 3(7):7399–7406CrossRefGoogle Scholar
  27. Pusch R (2001) The microstructure of MX80 clay with respect to its bulk physical properties under different environmental conditions. Technical Report TR-01-08. Swedish Nuclear Fuel and Waste Management, Stockholm, Sweden.Google Scholar
  28. Schramm LL (1993) The language of colloid & interface science. ACS Professional Reference Book, Washington, D.C, ACSGoogle Scholar
  29. Tuller M, Or D, Dudley LM (1999) Adsorption and capillary condensation in porous media: liquid retention and interfacial configurations in angular pores. Water Resour Res 35(7):1949–1964CrossRefGoogle Scholar
  30. Van Olphen H (1965) Thermodynamics of interlayer adsorption of water in clays. I.—sodium vermiculite. J Colloid Sci 20(8):822–837CrossRefGoogle Scholar
  31. Wang S, Han LJ, Meng QB, Jin YH, Zhao WS (2019) Investigation of pore structure and water imbibition behavior of weakly cemented silty mudstone. Adv Civ Eng 2019(6):1–13.  https://doi.org/10.1155/2019/8360924 CrossRefGoogle Scholar
  32. Wigger C, Gimmi T, Muller A, Van loon LR (2018) The influence of small pores on the anion transport properties of natural argillaceous rocks – a pore size distribution investigation of Opalinus Clay and Helvetic Marl. Appl Clay Sci 156:134–143CrossRefGoogle Scholar
  33. Xiao L, Li JR, Mao ZQ, Lu J, Yu HY, Guo HP, Li GR (2018) A method to determine nuclear magnetic resonance (NMR) T2cutoff based on normal distribution simulation in tight sandstone reservoirs. Fuel 225:472–482CrossRefGoogle Scholar
  34. Xu W, Johnston CT, Parker P, Agnew SF (2000) Infrared study of water sorption on Na-, Li-, Ca-, and Mg-exchanged (swy-1 and saz-1) montmorillonite. Clay Clay Min 48(1):120–131CrossRefGoogle Scholar
  35. Yang RS, Li YL, Guo DM, Yao L, Yang TM, Li TT (2017) Failure mechanism and control technology of water-immersed roadway in high-stress and soft rock in a deep mine. Int J Min Sci Tech 27(2):245–252CrossRefGoogle Scholar
  36. Yilmaz I (2010) Influence of water content on the strength and deformability of gypsum. Int J Rock Mech Min Sci 47(2):342–347CrossRefGoogle Scholar
  37. Yuan YJ, Reza R, Michael V, Hu SY, Zou J, Nadia T (2018) Pore characterization and clay bound water assessment in shale with a combination of NMR and low-pressure nitrogen gas adsorption. Int J Coal Geo.  https://doi.org/10.1016/j.coal.2018.05.003 CrossRefGoogle Scholar
  38. Zarate NV, Harrison AJ, Litster JD, Beaudoin SP (2013) Effect of relative humidity on onset of capillary forces for rough surfaces. J Colloid Interface Sci 411:265–272CrossRefGoogle Scholar
  39. Zhang N, He MC, Liu PY (2012) Water vapor sorption and its mechanical effect on clay-bearing conglomerate selected from China. Eng Geol (141-142): 1–8CrossRefGoogle Scholar
  40. Zhang JH, Wang LG, Li QH, Zhu SS (2015) Plastic zone analysis and support optimization of shallow roadway with weakly cemented soft strata. Int J Min Sci Tech 25(3):395–400CrossRefGoogle Scholar
  41. Zhao WS (2016) Study on the restructuring and mechanical properties evolution of argillaceous weakly consolidated rock. China University of Mining and TechnologyGoogle Scholar
  42. Zhou CY, Deng YM, Tan XS (2005) Experimental research on the softening of mechanical properties of saturated soft rocks and application. Chin J Rock Mech Eng 24(1):33–38Google Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Shuai Wang
    • 1
  • Lijun Han
    • 1
    Email author
  • Qingbin Meng
    • 1
  • Yuhao Jin
    • 1
  • Weisheng Zhao
    • 2
  1. 1.State Key Laboratory for Geomechanics and Deep Underground EngineeringChina University of Mining and TechnologyXuzhouChina
  2. 2.Institute of Mining EngineeringGuizhou Institute of TechnologyGuiyangChina

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