Improving the gas condensate recovery through wettability alteration to gas-wet during gas recycling via dispersion of nanoparticles in gas

Abstract

This research investigates the role of dispersion of nanoparticles in gas during gas recycling process to improve the gas condensate recovery via altering the carbonate reservoirs wettability. The nanoparticles were synthesized and analyzed using dynamic light scattering (DLS), energy-dispersive X-ray (EDX), and transmission electron microscopy (TEM). After that, the dispersion of nanoparticles in methane was investigated by cloud point pressures measurement. Also, the effectiveness of methane/nanoparticles solutions was assessed through the contact angle experiments and gas recycling process. Based on the cloud point pressures results, the nanoparticles can be dispersed in methane at pressures commensurate with hydrocarbon reservoirs. Gas/nanoparticles single-phase solutions increased the contact angles of gas condensate and n-decane from 12° to 121° and 135.5°, respectively, for fluorinated silica, and to 100.5° and 108° for fluorinated titania. The shift from oil-wet to gas-wet conditions enhanced the recovery factor from 55% to 76%, marking a 21% improvement in gas condensate recovery during gas recycling. Furthermore, the pressure drop ratio decreased by 60%, due to better surface wettability and reduced condensate blockage. Comparative results indicated that the dispersion of fluorinated silica nanoparticles in gas outperformed fluorinated titania in altering wettability. These results emphasize the potential of current new approach, through dispersion of fluorinated nanoparticles in gas; to improve gas condensate recovery during gas recycling, especially in low-permeability carbonate reservoirs.

Keywords

Gas condensate reservoirs / Wettability alteration / Nanoparticles / Cloud point pressure / Gas-wet

CRediT authorship contribution statement

Naser Namdari Garaghani: Methodology, Writing-original draft, Data curation, Investigation, Validation, Formal analysis, Writing-review & editing, Conceptualization. Asghar Gandomkar: Visualization, Software, Data curation, Formal analysis, Methodology, Funding acquisition, Validation, Resources, Supervision, Project administration, Investigation, Conceptualization, Writing-review & editing, Writing-original draft. Amin Azdarpour: Writing-review & editing, Data curation, Supervision, Conceptualization, Methodology, Writing-original draft, Investigation.

Declaration of competing interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

References

[1] L. Fan, B.W. Harris, A. Jamaluddin, J. Kamath, R. Mott, G.A. Pope, … C. H. Whitson, Understanding gas-condensate reservoirs, Oilfield Rev. 17 (4) (2005) 14-27.

[2] J. Kamath, Deliverability of gas-condensate reservoirs — field experiences and prediction techniques, J. Petrol. Technol. 59 (4) (2007) 94-99.

[3] W. Lei, D. Chen, Q. Wang, Combined use of petroleum inclusion analysis, PVT simulation, and basin modeling for reconstruction of deep fluid phase evolution in condensate gas reservoirs, Mar. Petrol. Geol. 171 (2025) 107210.

[4] J. Kamath, Deliverability of gas-condensate reservoirs — field experiences and prediction techniques, J. Petrol. Technol. 59 (4) (2007) 94-99.

[5] A. Naghizadeh, R. Azin, S. Osfouri, R. Fatehi, Wettability alteration of calcite and dolomite carbonates using silica nanoparticles coated with fluorine groups, J. Petrol. Sci. Eng. 188 (2020) 106915.

[6] F. Kazemi, A. Khlyupin, R. Azin, S. Osfouri, A. Khosravi, M. Sedaghat, … M. V. Karsanina, Wettability alteration in gas condensate reservoirs: a critical review of the opportunities and challenges, Energy Fuels 38 (3) (2024) 1539-1565.

[7] X. Meng, Z. Meng, J. Ma, T. Wang, Performance evaluation of CO₂ huff-n-puff gas injection in shale gas condensate reservoirs, Energies 12 (1) (2018) 42.

[8] M. Mohammed, T. Babadagli, Wettability alteration: a comprehensive review of materials/methods and testing the selected ones on heavy-oil containing oil-wet systems, Adv. Colloid Interface Sci. 220 (2015) 54-77.

[9] D.B. Dorhjie, T. Aminev, K. Maerle, Impact of depletion rate on the thermodynamics of gas condensates: experimental insights and analysis, Gas Sci. Eng. 134 (2025) 205534.

[10] G.R. Karandish, M.R. Rahimpour, S. Sharifzadeh, A.A. Dadkhah, Wettability alteration in gas-condensate carbonate reservoir using anionic fluorinated treatment, Chem. Eng. Res. Des. 93 (2015) 554-564.

[11] M. Fahes, A. Firoozabadi, Wettability alteration to intermediate gas-wetting in gas-condensate reservoirs at high temperatures, SPE J. 12 (4) (2007) 397-407.

[12] A. Seethepalli, B. Adibhatla, K.K. Mohanty, Wettability alteration during surfactant flooding of carbonate reservoirs, in: SPE Improved Oil Recovery Conference?, SPE, 2004. SPE-89423.

[13] J. Zong, Ch Zhang, X. Yan, Synthesis and evaluation of poly (imidazole olefin-co-ɑ-olefin-n-octadecyl maleate) as flow improvers for waxy gas condensate, Colloids Surf. A Physicochem. Eng. Asp. 715 (2025) 136662.

[14] X. Wei, K. Liu, X. Ding, Evolution of the Dibei condensate gas reservoirs in the northern Kuqa Foreland Basin, western China: insight for hydrocarbon in-reservoir alteration, Mar. Petrol. Geol. 174 (2025) 107306.

[15] A. Hosseinzadegan, H. Mahdiyar, A. Raoof, J. Qajar, The pore-network modeling of gas-condensate flow: elucidating the effect of pore morphology, wettability, interfacial tension, and flow rate, Geoenergy Sci. Eng. 229 (2023) 211937.

[16] M.M. Baghmolaei, Z. Sakhaei, S. Zendehboudi, Modeling of well productivity enhancement in a gas-condensate reservoir through wettability alteration: a comparison between smart optimization strategies, J. Nat. Gas Sci. Eng. 94 (2021) 104059.

[17] O. Ajagbe, M. Fahes, Establishing screening criteria for field application of wettability alteration in gas-condensate reservoirs, J. Petrol. Sci. Eng. 193 (2020) 107342.

[18] N.E. Ali, B. Zoghbi, M. Fahes, The impact of near-wellbore wettability on the production of gas and condensate: insights from experiments and simulations, J. Petrol. Sci. Eng. 175 (2019) 215-223.

[19] R. Ahmadi, Z. Farmani, Sh Osfouri, Condensate blockage remediation in a gas reservoir through wettability alteration using natural CaCO₃ nanoparticles, Colloids Surf. A Physicochem. Eng. Asp. 579 (2019) 123702.

[20] S.A. Hoseinpour, N. Norouzi, A.H. Mohammadi, Condensate blockage alleviation around gas-condensate producing wells using wettability alteration, J. Nat. Gas Sci. Eng. 62 (2019) 214-223.

[21] H.R. Erfani, M.H. Ghazanfari, Toward a hydrocarbon-based chemical for wettability alteration of reservoir rocks to gas wetting condition: implications to gas condensate reservoirs, J. Mol. Liq. 248 (2017) 100-111.

[22] M. Sheydaeemehr, B. Sedaeesola, Vatani A., gas-condensate production improvement using wettability alteration: a giant gas condensate field case study, J. Nat. Gas Sci. Eng. 21 (2014) 201-208.

[23] Z. Sakhaei, M.M. Baghmolaei, R. Azin, Study of production enhancement through wettability alteration in a super-giant gas-condensate reservoir, J. Mol. Liq. 233 (2017) 64-74.

[24] F. Torabi, A. Gandomkar, The application of CO₂-soluble non-ionic surfactants for wettability alteration to intermediate CO₂-oil wet during immiscible gas injection, SPE J (SPE-221487-PA) 29 (09) (2024) 5071-5086.

[25] F. Haeri, L.C. Burrows, P. Lemaire, P.G. Shah, R.M. Enick, A. Goodman, Improving CO₂-EOR in shale reservoirs using dilute concentrations of wettability-altering CO₂-Soluble nonionic surfactants,in: Presentation at the Unconventional Resources Technology Conference, 2020, p. 2774. USA, URTeC.

[26] A. Gandomkar, M. Sharif, Nano composites performance as direct thickeners for gas based enhanced oil recovery, a new approach, J. Pet. Sci. Eng. 194 (2020) 107491.

[27] M.A. Mousavi, S. Hassanajili, M.R. Rahimpour, Synthesis of fluorinated nano-silica and its application in wettability alteration near-wellbore region in gas condensate reservoirs, Appl. Surf. Sci. 273 (2013) 205-214.

[28] P. Esmaeilzadeh, M.T. Sadeghi, Z. Fakhroueian, A. Bahramian, R. Norouzbeigi, Wettability alteration of carbonate rocks from liquid-wetting to ultra gas-wetting using TiO₂, SiO₂ and CNT nanofluids containing fluorochemicals, for enhanced gas recovery, J. Nat. Gas Sci. Eng. 26 (2015) 1294-1305.

[29] A. Safaei, F. Esmaeilzadeh, X. Wang, Experimental investigation of wettability alteration of carbonate gas-condensate reservoirs from oil-wetting to gas-wetting using Fe₃O₄ nanoparticles coated with Poly (vinyl alcohol), (PVA) or Hydroxyapatite (HAp), J. Petrol. Sci. Eng. 184 (2020) 106530.

[30] M.F. Aguirre, R.D. Zabala, F.B. Cortés, Interaction of anionic surfactant-nanoparticles for gas-wettability alteration of sandstone in tight gas-condensate reservoirs, J. Nat. Gas Sci. Eng. (2018) 53-64.

[31] G.R. Karandish, M.R. Rahimpour, S. Sharifzadeh, Wettability alteration in gas-condensate carbonate reservoir using anionic fluorinated treatment, Chem. Eng. Res. Des. 93 (2015) 554-564.

[32] S.R.H. Jangi, M. Akhond, Synthesis and characterization of a novel metal-organic framework called nanosized electroactive quasi-coral-340 (NEQC-340) and its application for constructing a reusable nanozyme-based sensor for selective and sensitive glutathione quantification, Microchem. J. 158 (2020) 105328.

[33] R.E. McMahon, L. Wang, R. Skoracki, A.B. Mathur, Development of nanomaterials for bone repair and regeneration, J. Biomed. Mater. Res. B Appl. Biomater. 101 (2) (2013) 387-397.

[34] Y. Lai, J. Huang, Z. Cui, M. Ge, K.Q. Zhang, Z. Chen, L. Chi, Recent advances in TiO₂ based nanostructured surfaces with controllable wettability and adhesion, Small 12 (16) (2016) 2203-2224.

[35] Y. Chen, N. Bahadori, K. Saxena, Investigating the impact of nanoparticles and surfactants on the surface wettability, Bull. Am. Phys. Soc. Int. Mech. Eng. Congr. Exposition (2023).

[36] P. Esmaeilzadeh, M.T. Sadeghi, A. Bahramian, Wettability alteration in near-wellbore regions of gas reservoirs to mitigate liquid blockage using super water-and oil-repellent ZnO/SiO₂ Nanofluid treatment, Journal of Gas Technology 2 (1) (2017) 16-30.

[37] H.S. Nalwa ( Ed.), Nanostructured Materials and Nanotechnology, concise edition, Elsevier, 2001.

[38] X. Zhang, H. Liu, L. Jiang, Wettability and applications of nanochannels, Adv. Mater. 31 (5) (2019) 1804508.

[39] E.K. Kim, C.S. Lee, S.S. Kim, Superhydrophobicity of electrospray-synthesized fluorinated silica layers, J. Colloid Interface Sci. 368 (1) (2012) 599-602.

[40] J. Xu, Y. Ao, D. Fu, C. Yuan, Low-temperature preparation of F-doped TiO₂ film and its photocatalytic activity under solar light, Appl. Surf. Sci. 254 (10) (2008) 3033-3038.

[41] J. Jin, J. Sun, K. Rong, K. Lv, T.A. Nguyen, R. Wang, J. Wang, Gas-wetting alteration by fluorochemicals and its application for enhancing gas recovery in gas-condensate reservoirs: a review, Energies 13 (18) (2020) 4591.

[42] J. Chang, L. Zhang, P. Wang, Intelligent environmental nanomaterials, Environ. Sci. Nano 5 (4) (2018) 811-836.

[43] J.A. Ali, K. Kolo, A.K. Manshad, A.H. Mohammadi, Recent advances in application of nanotechnology in chemical enhanced oil recovery: effects of nanoparticles on wettability alteration, interfacial tension reduction, and flooding, Egyptian journal of petroleum 27 (4) (2018) 1371-1383.

[44] A. Gandomkar, F. Torabi, R.M. Enick, Enhanced oil recovery via dissolution of low molecular weight PDMS in CO₂ during immiscible gas injection in matrix-fracture system, Chem. Eng. Res. Des. 203 (2024) 18-28.

[45] L.C. Burrows, F. Haeri, D. Tapriyal, M.E. Enick, A. Goodman, Dissolving nonionic surfactants in CO₂ to improve oil recovery in unconventional reservoirs via wettability alteration, Energy Fuels 36 (2022) 11913-11929.

[46] J.,A. Medina E.C. Obasi T. Elshehabi S. Saraji, Wettability alternation and interface tension modification for enhanced oil recovery in oil-wet carbonates: a comparative study of different surfactants, Geoenergy Sci. Eng. 225 (2023) 211637.

[47] R.N. Moghaddam, A. Bahramian, Z. Fakhroueian, A. Karimi, S. Arya, Comparative study of using nanoparticles for enhanced oil recovery: wettability alteration of carbonate rocks, Energy Fuels 29 (4) (2015) 2111-2119.

[48] H. Wang, J. Fang, T. Cheng, J. Ding, L. Qu, L. Dai, T. Lin, One-step coating of fluoro-containing silica nanoparticles for universal generation of surface superhydrophobicity, Chem. Commun. (7) (2008) 877-879.

[49] A. Gandomkar, A. Azizkhani, A novel method for application of nanoparticles as direct asphaltene inhibitors during miscible CO₂ injection, J. Petrol. Sci. Eng. 185 (2020) 106661.

[50] J. Binshan, D. Shugao, L. Zhian, Z. Tiangao, S. Xiantao, Q. Xiaofeng,A study of wettability and permeability change caused by adsorption of nanometer structured polysilicon on the surface of porous media, in: SPE Asia Pacific Oil and Gas Conference and Exhibition, SPE, 2002, October. SPE-77938.

[51] Saidur Ghadimi H.S.C.,R.,A. Metselaar, A review of nanofluid stability properties and characterization in stationary conditions, Int. J. Heat Mass Tran. 54 (2011) 4051-4068.

[52] E. Hajibolouri, S. Kord, A. Hashemi, Y. Tamsilian, Improving fluid flow capacity in gas-condensate reservoirs through condensate blockage remediation using nanofluid wettability alteration, J. Dispersion Sci. Technol. (2025) 1-14.

[53] R. Saboori, R. Azin, S. Osfouri, S. Sabbaghi, A. Bahramian, Synthesis of fluorine-doped silica-coating by fluorosilane nanofluid to ultrahydrophobic and ultraoleophobic surface, Mater. Res. Express 4 (10) (2017) 105010.

[54] D. Wang, X. Wang, X. Liu, F. Zhou, Engineering a titanium surface with controllable oleophobicity and switchable oil adhesion, J. Phys. Chem. C 114 (21) (2010) 9938-9944.

[55] J.D. Brassard, D.K. Sarkar, J. Perron, Synthesis of monodisperse fluorinated silica nanoparticles and their superhydrophobic thin films, ACS Appl. Mater. Interfaces 3 (9) (2011) 3583-3588.

[56] M. Ramezani, M.R. Vaezi, A. Kazemzadeh, Preparation of silane-functionalized silica films via two-step dip coating sol-gel and evaluation of their superhydrophobic properties, Appl. Surf. Sci. 317 (2014) 147-153.

[57] Y. Zheng, Y. He, Y. Qing, Z. Zhuo, Q. Mo, Formation of SiO₂/polytetrafluoroethylene hybrid superhydrophobic coating, Appl. Surf. Sci. 258 (24) (2012) 9859-9863.

[58] A. Yudin, N. Nurlybayev, Z. Al-Jalal,Solving the low injectivity challenges in hydraulic fracturing tight gas reservoirs-case histories review, in: SPE Middle East Oil and Gas Show and Conference, SPE, 2023, March D011S018R002.

[59] E.O. Yusuf, I. Amber, S. Office cer, G.F. Oluyemi, Controlled application of nanoparticles for remediation in oil and gas application: strategies, challenges, and innovations, Energies 18 (4) (2025) 991.