Thermal Analysis: A Complementary Method to Study the Shurijeh Clay Minerals

Document Type: Research Paper

Authors

School of Mining Engineering, College of Engineering, University of Tehran, Tehran, Iran

Abstract

Clay minerals are considered the most important components of clastic reservoir rock evaluation studies. The Shurijeh gas reservoir Formation, represented by shaly sandstones of the Late Jurassic-Early Cretaceous age, is the main reservoir rock in the Eastern Kopet-Dagh sedimentary Basin, NE Iran. In this study, X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopic (SEM) studies, and thermal analysis including differential thermal analysis (DTA), and thermogravimetric analysis (TGA) techniques were utilized in the characterization of the Shurijeh clay minerals in ten representative samples. The XRF studies showed that silica and aluminum oxides are present quantities. The XRD test was then used to determine the mineralogical composition of bulk components, as well as the clay fraction. The XRD patterns indicated the presence of dominant amount of quartz and plagioclase, with moderate to minor amounts of alkali feldspar, anhydrite, carbonates (calcite and dolomite), hematite and clay minerals. The most common clays in the Shurijeh Formation were illite, chlorite, and kaolinite. However, in very few samples, glauconite, smectite, and mixed layer clay minerals of both illite-smectite and chlorite-smectite types were also recognized. The XRD results were quantified, using the elemental information from the XRF test, showing that each Shurijeh exhibited low to moderate amounts of clay minerals, typically up to 21%. The amount of illite, the most dominant clay mineral, reached maximum of 13.5%, while the other clay types were significantly smaller. Based on the use of SEM and thermal data, the results of the identification of clay minerals, corresponded with the powder X-ray diffraction analysis, which can be taken into account as an evidence of the effectiveness of the thermal analysis technique in clay typing, as a complementary method besides the XRD.

Keywords


[1] Dewan, J.T. (1983). Essentials of modern open-hole log interpretation. Penn Well Books.
[2] Hilchie, D.W. (1982). Advanced well log interpretation. Douglas W. Hilchie.
[3] Worden, R.H., & Morad, S. (2003). Clay minerals in sandstones: controls on formation, distribution and evolution (pp. 1-41). Blackwell Publishing Ltd.
[4] Asquith, G.B., Krygowski, D., & Gibson, C.R. (2004). Basic well log analysis (Vol. 16). Tulsa, OK: American association of petroleum geologists.
[5] Moore, D.M., & Reynolds, R.C. (1989). X-ray Diffraction and the Identification and Analysis of Clay Minerals (Vol. 378). Oxford: Oxford university press.
[6] Thornley, D.M., & Primmer, T.J. (1995). Thermogravimetry/ evolved water analysis (TG/EWA) combined with XRD for improved quantitative whole-rock analysis of clay minerals in sandstones. Clay Minerals, 30(1), 27-38.
[7] Gabbott, P. (Ed.). (2008). Principles and applications of thermal analysis. John Wiley & Sons.
[8] Arsenović, M., Pezo, L., Mančić, L., & Radojević, Z. (2014). Thermal and mineralogical characterization of loess heavy clays for potential use in brick industry. Thermochimica Acta, 580, 38-45.
[9] Stepkowska, E.T., Sułek, Z., Perez-Rodriguez, J.L., Maqueda, C., & Justo, A. (1991). A study of the thermal behaviour and geotechnical properties of a marine clay and its composites. In Thermal analysis in the geosciences (pp. 245-268). Springer Berlin Heidelberg.
Jozanikohan et al. / Int. J. Min. & Geo-Eng., Vol.49, No.1, June 2015
45
[10] Langier-Kuzniarowa, A. (1991). Remarks on the applicability of thermal analysis for the investigations of clays and related materials. In Thermal analysis in the geosciences (pp. 314-326). Springer Berlin Heidelberg.
[11] Yariv, S. (1991). Differential thermal analysis (DTA) of organo-clay complexes. In Thermal analysis in the geosciences (pp. 328-351). Springer Berlin Heidelberg.
[12] Grim, R.E., & Rowland, R.A. (1942). Differential thermal analysis of clay minerals and other hydrous materials. Part 1 and part 2. American mineralogist, 27, 746-761801.
[13] Johnson, L.J., Chu, C. H., & Hussey, G.A. (1985). Quantitative clay mineral analysis using simultaneous linear equations. Clays Clay Miner, 33(2), 107-117.
[14] Wilson, M.J. (1987). A Handbook of determinative methods in clay mineralogy. Blackie. Chapman and Hall.
[15] Bloodworth A.J., Hurst A. & Morgan D.J. (1990).Detection and estimation of low levels of kaolinite by evolved water vapour analysis. Mem. Sci, Geol.Strasbourg 89, 143-148.
[16] Guggenheim, S., & Van Groos, A.K. (2001). Baseline studies of the clay minerals society source clays: thermal analysis. Clays and Clay Minerals, 49(5), 433-443.
[17] Vaculíková, L., Plevová, E., Vallová, S., & Koutník, I. (2011). Characterization and differentiation of kaolinites from selected Czech deposits using infrared spectroscopy and differential thermal analysis. Acta Geodynamica et Geomasteralia, 8(1).
[18] Earnest, C.M. (1991). Thermal analysis of selected illite and smectite clay minerals. Part II. Smectite clay minerals. In Thermal analysis in the geosciences (pp. 288-312). Springer Berlin Heidelberg.
[19] Mielenz, R.C., Schieltz, N.C., & King, M.E. (1953). Thermogravimetric analysis of clay and clay-like minerals. Clays and Clay Minerals, 2, 285-314.
[20] Clews, F.H. (1969). Heavy clay technology (pp. 172-202). London and New York: Academic Press.
[21] Ross, G.J., & Kodama, H. (1974). Experimental transformation of a chlorite into a vermiculite. Clays Clay Miner, 22, 205-211.
[22] Orcel, J. (1927). Thermal analysis of chlorites. Bull. soc. franç. minéral, 50, 278-322.
[23] Yeskis, D., van Groos, A.F., & Guggenheim, S. (1985). The dehydroxylation of kaolinite. American Mineralogist, 70, 159-164.
[24] Trindade, M.J., Dias, M.I., Coroado, J., & Rocha, F. (2009). Mineralogical transformations of calcareous rich clays with firing: a comparative study between calcite and dolomite rich clays from Algarve, Portugal. Applied Clay Science, 42(3), 345-355.
[25] Alavi, M., Vaziri, H., Seyed-Emami, K., & Lasemi, Y. (1997). The Triassic and associated rocks of the Nakhlak and Aghdarband areas in central and northeastern Iran as remnants of the southern Turanian active continental margin. Geological Society of America Bulletin, 109(12), 1563-1575.
[26] Buryakovsky, L., Aminzadeh, F., & Chilingarian, G.V. (2001). Petroleum geology of the south Caspian Basin. Gulf Professional Publishing.
[27] Harb, A.A. (1979). The stratigraphy, tectonics and petroleum geology of the Kopet Dagh region, northern Iran (Doctoral dissertation, Imperial College London (University of London)).
[28] NIOC (National Iranian Oil Company, Exploration Directorate).(1986). Gonbadli geological well completion report, National Iranian Oil Company records, Tehran, Iran.
[29] Moussavi‐Harami, R., & Brenner, R.L. (1993). Diagenesis of non‐marine petroleum reservoirs: The Neocomian (Lower Cretaceous) Shurijeh Formation, Kopet‐Dagh Basin, NE Iran. Journal of Petroleum Geology, 16(1), 55-72.
[30] Indian Standard Methods of Chemical Analysis of Fireclay and Refractory Materials. (1960) IS: 1527.
[31] Selected Powder Diffraction Data for Minerals. (1974). Data book,Joint Committee on powder diffraction standards, USA, 1st ed.
[32] Wang, Q., Odlyha, M., & Cohen, N.S. (2000). Thermal analyses of selected soil samples from the tombs at the Tianma-Qucun site, Shanxi, China. Thermochimica acta, 365(1), 189-195.
[33] Papadopoulou, D.N., Lalia-Kantouri, M., Kantiranis, N., & Stratis, J.A. (2006). Thermal and mineralogical contribution to the ancient ceramics and natural clays characterization. Journal of thermal analysis and calorimetry, 84(1), 39-45.
[34] Martin, R.T. (1955). Reference chlorite characterization for chlorite identification in soil clays. Clays Clay Mineralogy, 117-145