| The effect of chlorite rims on reservoir quality in Chang 7 sandstone reservoirs in the Ordos Basin, China | |
Dou WC(窦文超); Lin M(林缅) ; Liu, Luofu; Jia, Langbo
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| Corresponding Author | Lin, Mian(linmian@imech.ac.cn) |
| Source Publication | MARINE AND PETROLEUM GEOLOGY
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| 2023-12-01 | |
| Volume | 158Pages:16 |
| ISSN | 0264-8172 |
| Abstract | Chlorite rims have been of interest to petroleum geologists over the past several decades, as a significant number of abnormal high-porosity sandstone reservoirs at great depths have been related to chlorite rims. To clarify the contribution of chlorite rims to porosity preservation in sandstones, the relationship between chlorite rims and porosity evolution in Chang 7 sandstones of the Upper Triassic Yanchang Formation in the Ordos Basin in northcentral China was investigated using thin sections, scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction analyses. Based on the detrital composition and diagenetic evolution pathway analyses, it was concluded that chlorite rims inhibited the formation of quartz cementation. However, in addition to quartz cementation, compaction and other cements (commonly carbonates and clays) also control the porosity evolution of sandstones. In sandstones in which porosity reduction is largely controlled by compaction or other cements, chlorite rims may have a limited effect on porosity preservation. Thus, chlorite rims can play an important role in porosity preservation only in sandstones in which quartz cementation is the main process of porosity destruction. The results of this study indicate that the development of high-porosity sandstones is often controlled by many factors, and the effects of chlorite rims on porosity preservation are not always significant. |
| Keyword | Sandstone reservoir Porosity preservation Chlorite rim Diagenesis |
| DOI | 10.1016/j.marpetgeo.2023.106506 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001103863200001 |
| WOS Keyword | TRIASSIC YANCHANG FORMATION ; ANOMALOUSLY HIGH-POROSITY ; DEEPLY BURIED SANDSTONES ; GRAIN-COATING CHLORITE ; PORE-LINING CHLORITE ; QUARTZ-CEMENTATION ; DIAGENETIC HETEROGENEITY ; OIL EMPLACEMENT ; FLOW DEPOSITS ; GAS-FIELD |
| WOS Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary |
| Funding Project | National Natural Science Foundation of China[42030808] ; National Natural Science Foundation of China[41372143] ; Research Fund for the Doctoral Program of Higher Education[20130007110002] |
| Funding Organization | National Natural Science Foundation of China ; Research Fund for the Doctoral Program of Higher Education |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Lin, Mian |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93585 |
| Collection | 流固耦合系统力学重点实验室 |
| Recommended Citation GB/T 7714 | Dou WC,Lin M,Liu, Luofu,et al. The effect of chlorite rims on reservoir quality in Chang 7 sandstone reservoirs in the Ordos Basin, China[J]. MARINE AND PETROLEUM GEOLOGY,2023,158:16. |
| APA | 窦文超,林缅,Liu, Luofu,&Jia, Langbo.(2023).The effect of chlorite rims on reservoir quality in Chang 7 sandstone reservoirs in the Ordos Basin, China.MARINE AND PETROLEUM GEOLOGY,158,16. |
| MLA | 窦文超,et al."The effect of chlorite rims on reservoir quality in Chang 7 sandstone reservoirs in the Ordos Basin, China".MARINE AND PETROLEUM GEOLOGY 158(2023):16. |
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| Jp2023Fa199.pdf（16647KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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