An Investigation on the Effect of Solvent and Heat to Clay Minerals in Shaly Sandstone

Wan Zairani Wan Bakar; Ismail Mohd Saaid; Mohd Riduan Ahmad; Husna Hayati Jarni; Siti Qurratu’ Aini Mahat

doi:10.22146/ijc.48010

An Investigation on the Effect of Solvent and Heat to Clay Minerals in Shaly Sandstone

https://doi.org/10.22146/ijc.48010

Wan Zairani Wan Bakar^(1*), Ismail Mohd Saaid⁽²⁾, Mohd Riduan Ahmad⁽³⁾, Husna Hayati Jarni⁽⁴⁾, Siti Qurratu’ Aini Mahat⁽⁵⁾

(1) Oil and Gas Department, Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Department of Petroleum Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
(2) Department of Petroleum Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
(3) Onyx Engineering Sdn Bhd, Jl. Perusahaan 4, 68100 Batu Caves, Selangor, Malaysia
(4) Oil and Gas Department, Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
(5) Department of Petroleum Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
(*) Corresponding Author

Abstract

Core cleaning could be complicated for samples that contain a high amount of clays. Some clays are delicate and exposure to solvent and heat would damage or alter its properties. In this study, we investigated the effect of direct exposure of solvent and heat to clay mineral properties based on petrographical data from X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscope (FESEM) and Energy Dispersive X-Ray (EDX). Experiments were performed on sidewall core samples taken in a shaly sand zone. The FTIR data did not show any changes at the molecular level to the clay mineral after direct contact with the selected solvent. The FESEM images showed some illite floccules collapse in the samples exposed to oven-drying at 60 °C.

Keywords

clay minerals; core cleaning; petrography; solvent; heat exposure

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References

[1] Gant, P.L., and Anderson, W.G., 1988, Core cleaning for the restoration of native wettability, SPE Form. Eval., 3 (1), 131-138.

[2] Gupta, I., Rai, C., Tinni, A., and Sondergeld, C., 2017, Impact of different cleaning methods on petrophysical measurements, Petrophysics, 58 (6), 613–621.

[3] Jennings, H.Y., 1957, Effect of Laboratory Core Cleaning on Water-Oil Relative Permeability, Fall Meeting of the Society of Petroleum Engineers of AIME, 6-9 October 1957, Dallas, Texas, SPE-897-G.

[4] Soeder, D.J., 1986, Laboratory drying procedures and the permeability of tight sandstone core, SPE Form. Eval., 1 (1), 16–22.

[5] Cho, D.W., Chon, C.M., Kim, Y., Jeon, B.H., Schwartz, F.W., Lee, E.S., and Song, H., 2011, Adsorption of nitrate and Cr(VI) by cationic polymer-modified granular activated carbon, Chem. Eng. J., 175, 298–305.

[6] Kloprogge, J.T, 1998, Synthesis of smectites and porous pillared clay catalysts: A review, J. Porous Mater., 5 (1), 5–41.

[7] Grim, R.E., and Joitns, W.D., 1954 Clay mineral investigation of sediments in the northern Gulf of Mexico, Clays Clay Miner., 2, 81–103.

[8] Djomgoue, P., and Njopwouo, D., 2013, FT-IR spectroscopy applied for surface clays characterization, J. Surf. Eng. Mater. Adv. Technol., 3 (4), 275–282.

[9] Bush, D.C., and Jenkins, R.E., 1970, Proper hydration of clays for rock property determinations, J. Pet. Technol., 22 (7), 800–804.

[10] Pallatt, N., Wilson, J., and McHardy, B., 1984, The relationship between permeability and the morphology of diagenetic illite in reservoir rocks, J. Pet. Technol., 36 (12), 2–225.

[11] Amarasinghe, P.M., Katti, K.S., and Katti, D.R., 2009, Nature of organic fluid–montmorillonite interactions: An FTIR spectroscopic study, J. Colloid Interface Sci., 337 (1), 97–105.

[12] Madejová, J., 2003, FTIR techniques in clay mineral studies, Vib. Spectrosc., 31 (1), 1–10.

[13] Vaculíková, L., and Plevová, E., 2005, Identification of clay minerals and micas in sedimentary rocks, Acta Geodyn. Geomater., 2 (2), 167–175.

[14] Huggett, J.M., 1995, Formation of authigenic illite in palaeocene mudrocks from the central North Sea: A study by high resolution electron microscopy, Clays Clay Miner., 43 (6), 682–692.

[15] O’Brien, N.R., 1971, Fabric of kaolinite and illite floccules, Clays Clay Miner., 19 (6), 353–359

[16] Kubliha, M., Trnovcová, V., Ondruška, J., Štubňa, I., Bošák, O., and Kaljuvee, T., 2017, Comparison of dehydration in kaolin and illite using DC conductivity measurements, Appl. Clay Sci., 149, 8–12.

[17] Madejová, J., and Komadel, P., 2001, Baseline studies of the clay minerals society source clays: Infrared methods, Clays Clay Miner., 49 (5), 410–432.

[18] Pironon, J., Pelletier, M., De Donato, P., and Mosser-Ruck, R., 2003, Characterization of smectite and illite by FTIR spectroscopy of interlayer NH₄⁺ cations, Clay Miner., 38 (2), 201–211.

DOI: https://doi.org/10.22146/ijc.48010