Academic Journal
Evolution of nC16H34-water–mineral systems in thermal capsules and geological implications for deeply-buried hydrocarbon reservoirs
| العنوان: | Evolution of nC16H34-water–mineral systems in thermal capsules and geological implications for deeply-buried hydrocarbon reservoirs |
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| المؤلفون: | Guang-Hui Yuan, Zi-Hao Jin, Ying-Chang Cao, Ke-Yu Liu, Jon Gluyas, Yan-Zhong Wang, Ke-Lai Xi |
| المصدر: | Geoscience Frontiers, Vol 13, Iss 2, Pp 101322- (2022) |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | nC16H34-water–mineral systems, Organic-inorganic interactions, Hydrocarbon degradation, Mineral alteration, Deeply buried hot reservoirs, Geology, QE1-996.5 |
| الوصف: | Organic-inorganic interactions between hydrocarbons and most minerals in deeply buried reservoirs remain unclear. In this study, gold capsules and fused silica capillary capsules (FSCCs) with different combinations of nC16H34, water (distilled water, CaCl2 water) and minerals (quartz, feldspar, calcite, kaolinite, smectite, and illite) were heated at 340 °C for 3–10 d, to investigate the evolution and reaction pathways of the organic–inorganic interactions in different hot systems.After heating, minerals exhibited little alteration in the anhydrous systems. Mineral alterations, however, occurred obviously in the hydrous systems. Different inorganic components affected nC16H34 degradation differently. Overall, water promoted the free-radical thermal-cracking reaction and step oxidation reaction but suppressed the free-radical cross-linking reaction. The impact of CaCl2 water on the nC16H34 degradation was weaker than the distilled water as high Ca2+ concentration suppressed the formation of free radicals. The presence of different waters also affects the impact of different minerals on nC16H34 degradation, via its impact on mineral alterations. In the anhydrous nC16H34-mineral systems, calcite and clays catalyzed generation of low-molecular-weight (LMW) alkanes, particularly the clays. Quartz, feldspar, and calcite catalyzed generation of high-molecular-weight (HMW) alkanes and PAHs, whereas clays catalyzed the generation of LMW alkanes and mono-bicyclic aromatic hydrocarbons (M-BAHs). In the hydrous nC16H34-distilled water–mineral systems, all minerals but quartz promoted nC16H34 degradation to generate more LMW alkanes, less HMW alkanes and PAHs. In the nC16H34-CaCl2 water–mineral systems, the promotion impact of minerals was weaker than that in the systems with distilled water.This study demonstrated the generation of different hydrocarbons with different fluorescence colors in the different nC16H34-water–mineral systems after heating for the same time, implying that fluorescence colors need to be interpreted ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1674-9871 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S1674987121001869; https://doaj.org/toc/1674-9871; https://doaj.org/article/3e4ec72c91d545259194f4a5f604a8a8 |
| DOI: | 10.1016/j.gsf.2021.101322 |
| الاتاحة: | https://doi.org/10.1016/j.gsf.2021.101322 https://doaj.org/article/3e4ec72c91d545259194f4a5f604a8a8 |
| رقم الانضمام: | edsbas.3019A94D |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 16749871 |
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| DOI: | 10.1016/j.gsf.2021.101322 |