Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite
Montmorillonite is characterized by small particle size, large specific surface area and strong water sensitivity, which results in blocking the pore and throat of the reservoir and in turn affecting its quality. Dissolution characteristics of montmorillonite under alkaline conditions are common con...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2016-11-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.06.006 |
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| author | LIU Zhen QU Xi-yu WANG Wei-qing LIN Yong-chang GAO Yuan |
| author_facet | LIU Zhen QU Xi-yu WANG Wei-qing LIN Yong-chang GAO Yuan |
| author_sort | LIU Zhen |
| collection | DOAJ |
| description | Montmorillonite is characterized by small particle size, large specific surface area and strong water sensitivity, which results in blocking the pore and throat of the reservoir and in turn affecting its quality. Dissolution characteristics of montmorillonite under alkaline conditions are common concerns in the development of oil fields. Mass contrast, X-ray Diffraction, solution concentration analysis and value analysis of pH methods are commonly used to characterize dissolution of montmorillonite. However, the quality comparison method is complex. Calculation of diffraction pattern by the X-ray Diffraction involves large manual operation errors. The ion concentration analysis method shows a large detection error for infusible elements. Value analysis of the pH method is influenced by temperature changes. The specific surface area, pore volume, pore diameter change, adsorption-desorption curve measured by nitrogen adsorption method was used to characterize the dissolution of montmorillonite under alkaline conditions and is reported in this paper. The experimental conditions were optimized, including the concentration of NaOH solution and filling time (reaction time). The best concentration of NaOH solution was 0.05 mol/L and the best reaction time was 3 h. Results show that the dissolved results of montmorillonite by the nitrogen adsorption method characterized by specific surface area, pore volume, pore diameter and adsorption desorption curve are consistent with the results by the change of the pH value and the concentration of the solution (such as Si4+). Therefore, the method is feasible and can be used to characterize the dissolution of minerals with multiple pores and large specific surface area. |
| first_indexed | 2024-04-10T16:28:29Z |
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| id | doaj.art-e6998fbd8d914f55a90bb7d1127740f6 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:28:29Z |
| publishDate | 2016-11-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-e6998fbd8d914f55a90bb7d1127740f62023-02-09T01:25:39ZengScience Press, PR ChinaYankuang ceshi0254-53572016-11-0135660361110.15898/j.cnki.11-2131/td.2016.06.006ykcs-35-6-603Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of MontmorilloniteLIU Zhen0QU Xi-yu1WANG Wei-qing2LIN Yong-chang3GAO Yuan4School of Geosciences, China University of Petroleum, Qingdao 266555, ChinaSchool of Geosciences, China University of Petroleum, Qingdao 266555, ChinaShengli Petroleum Exploration and Development Institute, Dongying 257015, ChinaSchool of Geosciences, China University of Petroleum, Qingdao 266555, ChinaSchool of Geosciences, China University of Petroleum, Qingdao 266555, ChinaMontmorillonite is characterized by small particle size, large specific surface area and strong water sensitivity, which results in blocking the pore and throat of the reservoir and in turn affecting its quality. Dissolution characteristics of montmorillonite under alkaline conditions are common concerns in the development of oil fields. Mass contrast, X-ray Diffraction, solution concentration analysis and value analysis of pH methods are commonly used to characterize dissolution of montmorillonite. However, the quality comparison method is complex. Calculation of diffraction pattern by the X-ray Diffraction involves large manual operation errors. The ion concentration analysis method shows a large detection error for infusible elements. Value analysis of the pH method is influenced by temperature changes. The specific surface area, pore volume, pore diameter change, adsorption-desorption curve measured by nitrogen adsorption method was used to characterize the dissolution of montmorillonite under alkaline conditions and is reported in this paper. The experimental conditions were optimized, including the concentration of NaOH solution and filling time (reaction time). The best concentration of NaOH solution was 0.05 mol/L and the best reaction time was 3 h. Results show that the dissolved results of montmorillonite by the nitrogen adsorption method characterized by specific surface area, pore volume, pore diameter and adsorption desorption curve are consistent with the results by the change of the pH value and the concentration of the solution (such as Si4+). Therefore, the method is feasible and can be used to characterize the dissolution of minerals with multiple pores and large specific surface area.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.06.006specific surface area-nitrogen adsorption methodspecific surface area characteristicspore size characteristicsdissolution characteristicsnaoh solution |
| spellingShingle | LIU Zhen QU Xi-yu WANG Wei-qing LIN Yong-chang GAO Yuan Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite Yankuang ceshi specific surface area-nitrogen adsorption method specific surface area characteristics pore size characteristics dissolution characteristics naoh solution |
| title | Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite |
| title_full | Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite |
| title_fullStr | Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite |
| title_full_unstemmed | Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite |
| title_short | Application of Specific Surface Area Nitrogen Adsorption Method to Characterize the Alkaline Dissolution of Montmorillonite |
| title_sort | application of specific surface area nitrogen adsorption method to characterize the alkaline dissolution of montmorillonite |
| topic | specific surface area-nitrogen adsorption method specific surface area characteristics pore size characteristics dissolution characteristics naoh solution |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.06.006 |
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