1887
Volume 64 Number 4
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

Natural shale samples, particularly well‐preserved, drilled core samples, are extremely difficult to obtain for laboratory research. Multiple tests must be carried out on one sample, and some samples are disposed after destructive tests. Therefore, rarity and non‐reusability of samples strongly restrict shale studies. In this study, based on statistical data from the world's major shale block, a new type of synthetic shale was physically constructed via a process of interfusion, stuffing, and compaction using quartz, clay, carbonate, and kerogen as the primary materials, according to statistical data from the world's major shale blocks. Further evaluation of the synthetic shale involved the use of scanning electron microscopy imagery and analysis of its anisotropic characteristics in comparison with natural shale. The synthetic shale had a laminated microstructure similar to natural shale, and its velocity anisotropy corresponded to Thomsen's anisotropy of a transversely isotropic medium. The results of tests for homogeneity and repeatability indicated that the construction process was stable and that several identical synthetic samples, which were satisfactorily similar to natural shale, could be produced for both iterative and destructive tests. The composition of each mineral, as well as the density, porosity, permeability, and anisotropy of the samples, were all variable. Therefore, a series of synthetic samples could be obtained with properties set to meet the requirements of petrophysical experimentation. Moreover, gas or oil saturation was also considered in the construction of the synthetic shale, meaning that the characteristics of gas or oil saturation (or the complete range of data from dry to saturated samples) could be tested using the synthetic shale.

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2016-06-01
2024-04-16
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References

  1. JohansenA.T., RuudO.B. and JakobsenM.2004. Effect of grain scale alignment on seismic anisotropy and reflectivity of shales. Geophysical Prospecting52, 133–149.
    [Google Scholar]
  2. BandyopadhyayK.2009. Seismic anisotropy‐geological causes and its implications to reservior geophysics. Ph.D. thesis, Stanford University, USA.
  3. BeharF., VandenbrouckeM., TangY., MarquisF. and EspitalieJ.1997. Thermal cracking of kerogen in open and closed systems: determination of kinetic parameters and stoichiometric coefficients for oil and gas generation. Organic Geochemistry26, 321–339.
    [Google Scholar]
  4. CarcioneJ.M., GurevichB. and CavalliniF.2000. A generalized Biot–Gassmann model for the acoustic properties of shaley sandstones1. Geophysical Prospecting48, 539–557.
    [Google Scholar]
  5. ChangC.H. and GardnerG.H.F.1997. Effects of vertically aligned subsurface fractures on seismic reflections: A physical model study. Geophysics62, 245–252.
    [Google Scholar]
  6. ChangC.H., GardnerG.H.F. and McDonaldJ.A.1994. A physical model of shear‐wave propagation in a transversely isotropic solid. Geophysics59, 484–487.
    [Google Scholar]
  7. ChangC.H., GardnerG.H.F. and McDonaldJ.A.1995. Experimental observation of surface wave propagation for a transversely isotropic medium. Geophysics60, 185–190.
    [Google Scholar]
  8. ChangY.F. and ChangC.H.2001. Laboratory results for the features of body‐wave propagation in a transversely isotropic media. Geophysics66, 1921–1924.
    [Google Scholar]
  9. CheadleS.P., BrownR.J. and LawtonD.C.1991. Orthorhombic anisotropy: a physical seismic modeling study. Geophysics56, 1603–1613.
    [Google Scholar]
  10. DerjaguinB. and LandauL.1993. Theory of the stability of strongly charged lyophobic sols and of the adhesion of strongly charged particles in solutions of electrolytes. Progress in Surface Science43, 30–59.
    [Google Scholar]
  11. DingW., LiC., LiC., XuC., JiuK., ZengW.et al. 2012. Fracture development in shale and its relationship to gas accumulation. Geoscience Frontiers3, 97–105.
    [Google Scholar]
  12. EbromD., TathamR., SekharanK., McDonaldJ. and GardnerG.1990. Hyperbolic traveltime analysis of first arrivals in an azimuthally anisotropic medium: a physical modeling study. Geophysics55, 185–191.
    [Google Scholar]
  13. EfremovI.F. and BikermanJ.J.1973. Periodic colloid structures. Journal of The Electrochemical Society120, 185C.
    [Google Scholar]
  14. FairbridgeR.W.1967. Chapter 2: phases of diagenesis and authigenesis. In: Developments in Sedimentology, Vol. 8 (eds. L.Gunnar and V.C.George), pp. 19–89. Elsevier.
    [Google Scholar]
  15. HanZ., YangQ. and PangZ.2001. Artificial maturation study of a humic coal and a torbanite. International Journal of Coal Geology46, 133–143.
    [Google Scholar]
  16. HillR.J., ZhangE., KatzB.J. and TangY.2007. Modeling of gas generation from the Barnett Shale, Fort Worth Basin, Texas. AAPG Bulletin91, 501–521.
    [Google Scholar]
  17. HornbyB., SchwartzL. and HudsonJ.1994a. Anisotropic effective‐medium modeling of the elastic properties of shales. Geophysics59, 1570–1583.
    [Google Scholar]
  18. HornbyB.E., SchwartzL.M. and HudsonJ.A.1994b. Anisotropic effective‐medium modeling of the elastic properties of shales. Geophysics59, 1570–1583.
    [Google Scholar]
  19. KayM.1951. North american geosynclines. Geological Society of America Memoirs48, 1–132.
    [Google Scholar]
  20. LandaisP., MichelsR. and ElieM.1994. Are time and temperature the only constraints to the simulation of organic matter maturation? Organic Geochemistry22, 617–630.
    [Google Scholar]
  21. LarsenG. and ChilingarianG.V.1982. Diagenesis in Sediments and Sedimentary Rocks. Elsevier Science.
    [Google Scholar]
  22. LevinV.M. and MarkovM.G.2005. Elastic properties of inhomogeneous transversely isotropic rocks. International Journal of Solids and Structures42, 393–408.
    [Google Scholar]
  23. LiZ.X.J.2014. Progress and prospects for shale gas exploration and development in China. Advanced Materials Research962–965, 600–603.
    [Google Scholar]
  24. LiangM., WangZ., ZhengJ., LiX., WangX., GaoZ.et al. 2015. Hydrous pyrolysis of different kerogen types of source rock at high temperature‐bulk results and biomarkers. Journal of Petroleum Science and Engineering125, 209–217.
    [Google Scholar]
  25. OsipovV.I., SokolovV.N. and EremeevV.V.2003. Clay Seals of Oil and Gas Deposits. CRC Press.
    [Google Scholar]
  26. RossD.J.K. and Marc BustinR.2007. Impact of mass balance calculations on adsorption capacities in microporous shale gas reservoirs. Fuel86, 2696–2706.
    [Google Scholar]
  27. SaroutJ., MolezL., GuéguenY. and HoteitN.2007. Shale dynamic properties and anisotropy under triaxial loading: Experimental and theoretical investigations. Physics and Chemistry of the Earth, Parts A/B/C32, 896–906.
    [Google Scholar]
  28. SayersC.M.1994. The elastic anisotrophy of shales. Journal of Geophysical Research: Solid Earth99, 767–774.
    [Google Scholar]
  29. SayersC.M.2005. Seismic anisotropy of shales. Geophysical Prospecting53, 667–676.
    [Google Scholar]
  30. SayersC.M.2013. The effect of kerogen on the elastic anisotropy of organic‐rich shales. Geophysics78, D65–D74.
    [Google Scholar]
  31. StachM.M., TeichmullerM., TaylorG., ChandraD. and TeichmullerR.1982. Stach's Textbook of Coal Petrology, pp. 535. Gebruder Borntraeger, Germany.
    [Google Scholar]
  32. TathamR., MatthewsM., SekharanK., WadeC. and LiroL.1992. A physical model study of shear‐wave splitting and fracture intensity. Geophysics57, 647–652.
    [Google Scholar]
  33. TathamR.H., GoolsbeeD.V., MassellW.F. and NelsonH.R.1983. Seismic shear‐wave observations in a physical model experiment. Geophysics48, 688–701.
    [Google Scholar]
  34. ThomsenL.1987. Reflection Seismology in Azimuthally Anisotropic Media.
    [Google Scholar]
  35. TissotB.P. and WelteD.H.1984. Petroleum Formation and Occurrence.
    [Google Scholar]
  36. TurekianK.K. and WedepohlK.H.1961. Distribution of the elements in some major units of the Earth's crust. Geological Society of America Bulletin72, 175–192.
    [Google Scholar]
  37. VernikL. and LiuX.1997. Velocity anisotropy in shales: A petrophysical study. Geophysics62, 521–532.
    [Google Scholar]
  38. VerweyE. and Overbeek, J.T.G.1948. The Theory of the Stability of Lipophilic Colloids. Elsevier.
    [Google Scholar]
  39. WeiS.U.N., Li‐YunF.U., Xi‐ZhuG. and WeiW.E.I.2013. Study on anisotropy of shale in shale gas exploration using seismic forward modeling. Chinese Journal of Geophysics56, 170–180.
    [Google Scholar]
  40. WeltonJ.E. and CompanyC.O.F.R.1984. SEM Petrology Atlas. American Association of Petroleum Geologists.
    [Google Scholar]
  41. WintersteinD.1992. How shear‐wave properties relate to rock fractures: Simple cases. The Leading Edge11, 21–28.
    [Google Scholar]
  42. ZhiqiG., Xiang‐YangL., CaiL., XuanF. and YeS.2013. A shale rock physics model for analysis of brittleness index, mineralogy and porosity in the Barnett shale. Journal of Geophysics and Engineering10, 025006.
    [Google Scholar]
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