Fractal Characteristics of Pores in the Longtan Shales of Guizhou, Southwest China
المؤلفون المشاركون
Tang, Xuan
Liu, Chengwei
Yang, Junwei
Huang, Yuqi
Zhang, Peng
Zhang, Jinchuan
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-23
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
الملخص EN
The pore structure of marine-continental transitional shales from the Longtan Formation in Guizhou, China, was investigated using fractal dimensions calculated by the FHH (Frenkel-Halsey-Hill) model based on low-temperature N2 adsorption data.
Results show that the overall D1 (fractal dimension under low relative pressure, P/P0≤0.5) and D2 (fractal dimension under high relative pressure, P/P0>0.5) values of Longtan shales were relatively large, with average values of 2.7426 and 2.7838, respectively, indicating a strong adsorption and storage capacity and complex pore structure.
The correlation analysis of fractal dimensions with specific surface area, average pore size, and maximum gas absorption volume indicates that D1 can comprehensively characterize the adsorption and storage capacity of shales, while D2 can effectively characterize the pore structure complexity.
Further correlation among pore fractal dimension, shale organic geochemical parameters, and mineral composition parameters shows that there is a significant positive correlation between fractal dimensions and organic matter abundance as well as a complex correlation between fractal dimension and organic matter maturity.
Fractal dimensions increase with an increase in clay mineral content and pyrite content but decrease with an increase in quartz content.
Considering the actual geological evaluation and shale gas exploitation characteristics, a lower limit for D1 and upper limit for D2 should be set as evaluation criteria for favorable reservoirs.
Combined with the shale gas-bearing property test results of Longtan shales in Guizhou, the favorable reservoir evaluation criteria are set as D1≥2.60 and D2≤2.85.
When D1 is less than 2.60, the storage capacity of the shales is insufficient.
When D2 is greater than 2.85, the shale pore structure is too complicated, resulting in poor permeability and difficult exploitation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Huang, Yuqi& Zhang, Peng& Zhang, Jinchuan& Tang, Xuan& Liu, Chengwei& Yang, Junwei. 2020. Fractal Characteristics of Pores in the Longtan Shales of Guizhou, Southwest China. Geofluids،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1165723
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Huang, Yuqi…[et al.]. Fractal Characteristics of Pores in the Longtan Shales of Guizhou, Southwest China. Geofluids No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1165723
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Huang, Yuqi& Zhang, Peng& Zhang, Jinchuan& Tang, Xuan& Liu, Chengwei& Yang, Junwei. Fractal Characteristics of Pores in the Longtan Shales of Guizhou, Southwest China. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1165723
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1165723
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