Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures
Abstract The rising challenges of high water cuts and fluid production costs in mature oil reservoirs necessitate efficient interventions to optimize reservoir productivity. This study addresses these challenges by investigating the adsorption behavior of hydroquinone (HQ), a highly effective crossl...
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Nature Portfolio
2025-07-01
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| Online Access: | https://doi.org/10.1038/s41598-025-05564-2 |
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| author | Umirzokov Azamat Makhmarejabov Dilmurod Fatkhiddinov Asliddinjon Nosirov Nurzod Samadov Bakhodirjon Niyazmetov Azamat Kurbanov G’olib Mashaev Eldor Saeed Khezerloo-ye Aghdam |
| author_facet | Umirzokov Azamat Makhmarejabov Dilmurod Fatkhiddinov Asliddinjon Nosirov Nurzod Samadov Bakhodirjon Niyazmetov Azamat Kurbanov G’olib Mashaev Eldor Saeed Khezerloo-ye Aghdam |
| author_sort | Umirzokov Azamat |
| collection | DOAJ |
| description | Abstract The rising challenges of high water cuts and fluid production costs in mature oil reservoirs necessitate efficient interventions to optimize reservoir productivity. This study addresses these challenges by investigating the adsorption behavior of hydroquinone (HQ), a highly effective crosslinker in in-situ gel applications, on carbonate rocks across varying temperatures. Adsorption batch experiments revealed that the HQ adsorption capacity, following the Langmuir model, decreased from 45.2 mg/g-rock at 25 °C to 34.2 mg/g-rock at 90 °C. Thermodynamic analysis confirmed the exothermic (enthalpy = -6494 J/mol) and spontaneous (entropy = 6.47 J/mol·K, ΔG ranging from − 8335 J/mol to -8737 J/mol across 25–90 °C) nature of the process. These findings demonstrate the temperature-dependent nature of HQ adsorption, which reduces at higher temperatures due to increased molecular motion and solubility. Furthermore, core flooding experiments in porous carbonate matrices showed lower adsorption capacities, ranging from 31.2 mg/g-rock at 25 °C to 17.3 mg/g-rock at 90 °C, highlighting the distinct behavior in porous media environments. These results provide a pathway to optimize operational conditions for chemical injection processes in petroleum formations, ensuring reduced crosslinker loss and enhanced gel performance in situ. Insights from this study contribute to the development of cost-effective and efficient reservoir management strategies. |
| format | Article |
| id | doaj-art-c5ab99d7a0984f53a481ed0546b26e52 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-c5ab99d7a0984f53a481ed0546b26e522025-08-20T04:01:34ZengNature PortfolioScientific Reports2045-23222025-07-0115111410.1038/s41598-025-05564-2Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperaturesUmirzokov Azamat0Makhmarejabov Dilmurod1Fatkhiddinov Asliddinjon2Nosirov Nurzod3Samadov Bakhodirjon4Niyazmetov Azamat5Kurbanov G’olib6Mashaev Eldor7Saeed Khezerloo-ye Aghdam8Department of Mining work, Tashkent State Technical University named after Islam KarimovDepartment for Coordinating the Activities of Scientific Laboratories, Tashkent State Technical UniversityDepartment of Mechanical Engineering Technology, Faculty of Energy and Mechanical Engineering, Almalyk branch of Tashkent State Technical UniversityTashkent State Technical University named after Islam KarimovBukhara State Medical Institute named after Abu Ali ibn SinoDepartment of Chemistry At, Urganch State UniversityDepartment of Pathological Physiology, Samarkand State Medical UniversityDepartment of Chemical Technology of Oil and Gas Refining, Tashkent Institute of Chemical TechnologyDepartment of Petroleum Engineering, Amirkabir University of TechnologyAbstract The rising challenges of high water cuts and fluid production costs in mature oil reservoirs necessitate efficient interventions to optimize reservoir productivity. This study addresses these challenges by investigating the adsorption behavior of hydroquinone (HQ), a highly effective crosslinker in in-situ gel applications, on carbonate rocks across varying temperatures. Adsorption batch experiments revealed that the HQ adsorption capacity, following the Langmuir model, decreased from 45.2 mg/g-rock at 25 °C to 34.2 mg/g-rock at 90 °C. Thermodynamic analysis confirmed the exothermic (enthalpy = -6494 J/mol) and spontaneous (entropy = 6.47 J/mol·K, ΔG ranging from − 8335 J/mol to -8737 J/mol across 25–90 °C) nature of the process. These findings demonstrate the temperature-dependent nature of HQ adsorption, which reduces at higher temperatures due to increased molecular motion and solubility. Furthermore, core flooding experiments in porous carbonate matrices showed lower adsorption capacities, ranging from 31.2 mg/g-rock at 25 °C to 17.3 mg/g-rock at 90 °C, highlighting the distinct behavior in porous media environments. These results provide a pathway to optimize operational conditions for chemical injection processes in petroleum formations, ensuring reduced crosslinker loss and enhanced gel performance in situ. Insights from this study contribute to the development of cost-effective and efficient reservoir management strategies.https://doi.org/10.1038/s41598-025-05564-2Cross-linkerAdsorption enthalpyThermodynamicGibs free energy |
| spellingShingle | Umirzokov Azamat Makhmarejabov Dilmurod Fatkhiddinov Asliddinjon Nosirov Nurzod Samadov Bakhodirjon Niyazmetov Azamat Kurbanov G’olib Mashaev Eldor Saeed Khezerloo-ye Aghdam Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures Scientific Reports Cross-linker Adsorption enthalpy Thermodynamic Gibs free energy |
| title | Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures |
| title_full | Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures |
| title_fullStr | Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures |
| title_full_unstemmed | Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures |
| title_short | Experimental study and modeling adsorption behavior of a robust cross-linker on carbonate rocks at different temperatures |
| title_sort | experimental study and modeling adsorption behavior of a robust cross linker on carbonate rocks at different temperatures |
| topic | Cross-linker Adsorption enthalpy Thermodynamic Gibs free energy |
| url | https://doi.org/10.1038/s41598-025-05564-2 |
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