Difference Analysis of Organic Matter Enrichment Mechanisms in Upper Ordovician-Lower Silurian Shale from the Yangtze Region of Southern China and Its Geological Significance in Shale Gas Exploration
المؤلفون المشاركون
Huang, Yizhou
Zhang, Kun
Jiang, Zhenxue
Song, Yan
Jiang, Shu
Jia, Chengzao
Liu, Weiwei
Wen, Ming
Xie, Xuelian
Liu, Tianlin
Sun, Yue
Fan, Shichao
Cao, Xiangni
Zhu, Lin
Zhou, Chuanxun
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-06-02
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
The upper Ordovician-lower Silurian shale has always been the main target of marine shale gas exploration in southern China.
However, the shale gas content varies greatly across different regions.
The organic matter content is one of the most important factors in determining gas content; therefore, determining the enrichment mechanisms of organic matter is an important problem that needs to be solved urgently.
In this paper, upper Ordovician-lower Silurian shale samples from the X-1 and Y-1 wells that are located in the southern Sichuan area of the upper Yangtze region and the northwestern Jiangxi area of the lower Yangtze region, respectively, are selected for analysis.
Based on the core sample description, well logging data analysis, mineral and elemental composition analysis, silicon isotope analysis, and TOC (total organic carbon) content analysis, the upper Ordovician-lower Silurian shale is studied to quantitatively calculate its content of excess silicon.
Subsequently, the results of elemental analysis and silicon isotope analysis are used to determine the origin of excess silicon.
Finally, we used U/Th to determine the characteristics of the redox environment and the relationship between excess barium and TOC content to judge paleoproductivity and further studied the mechanism underlying sedimentary organic matter enrichment in the study area.
The results show that the excess silicon from the upper Ordovician-lower Silurian shale in the upper Yangtze area is derived from biogenesis.
The sedimentary water body is divided into an oxygen-rich upper water layer that has higher paleoproductivity and a strongly reducing lower water that is conducive to the preservation of sedimentary organic matter.
Thus, for the upper Ordovician-lower Silurian shale in the upper Yangtze region, exploration should be conducted in the center of the blocks with high TOC contents and strongly reducing water body.
However, the excess silicon in the upper Ordovician-lower Silurian shale of the lower Yangtze area originates from hydrothermal activity that can enhance the reducibility of the bottom water and carry nutrients from the crust to improve paleoproductivity and enrich sedimentary organic matter.
Therefore, for the upper Ordovician-lower Silurian shale in the lower Yangtze region, exploration should be conducted in the blocks near the junction of the two plates where hydrothermal activity was active.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wen, Ming& Jiang, Zhenxue& Zhang, Kun& Song, Yan& Jiang, Shu& Jia, Chengzao…[et al.]. 2019. Difference Analysis of Organic Matter Enrichment Mechanisms in Upper Ordovician-Lower Silurian Shale from the Yangtze Region of Southern China and Its Geological Significance in Shale Gas Exploration. Geofluids،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1154639
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wen, Ming…[et al.]. Difference Analysis of Organic Matter Enrichment Mechanisms in Upper Ordovician-Lower Silurian Shale from the Yangtze Region of Southern China and Its Geological Significance in Shale Gas Exploration. Geofluids No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1154639
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wen, Ming& Jiang, Zhenxue& Zhang, Kun& Song, Yan& Jiang, Shu& Jia, Chengzao…[et al.]. Difference Analysis of Organic Matter Enrichment Mechanisms in Upper Ordovician-Lower Silurian Shale from the Yangtze Region of Southern China and Its Geological Significance in Shale Gas Exploration. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1154639
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1154639
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر