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Experimental Study and Percolation Analysis on Seepage Characteristics of Fractured Coal and Sandstone Based on Real-Time Micro-CT
المؤلفون المشاركون
Lv, Zhaoxing
Ji, Qianqian
Ren, Weijie
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-05
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Sandstone and coal are the two most common types of reservoirs in nature.
The permeability of sandstone in oil-bearing formations controls its oil and gas production; the permeability of the coal seam containing gas has a crucial influence on the gas drainage efficiency.
One of the main factors affecting rock permeability is the spatial distribution and connectivity of pores and fissures in the rock.
In this paper, a small-sized sample with a diameter of 5 mm and a height of 10 mm was used for the test.
The rock samples under different stress states were scanned in real-time during the seepage testing.
Based on 2D images, a 3D digital sample was reconstructed.
We extracted the pores and fissures from the 3D digital sample, studied the size and distribution of the largest cluster in the sample, and revealed the influence of confining pressure and seepage pressure on the percolation probability and permeability of the sample.
The research results show that brittle sandstone and plastic coal, two types of rocks with completely different properties of mechanics, have obvious differences in the spatial distribution of the largest clusters.
Under the same stress state, in brittle sandstone-like rocks, the connectivity of the fissures is the primary factor affecting permeability, and the pores are the auxiliary factor; for plastic rocks such as coal, the situation is just the opposite, pores are the primary factor affecting permeability, and fissures are the auxiliary factor.
The research results answer the question: Hydraulic fracturing technology can increase the oil and gas production of sandstone reservoirs but cannot increase the drainage efficiency of coalbed methane.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Lv, Zhaoxing& Ji, Qianqian& Ren, Weijie. 2020. Experimental Study and Percolation Analysis on Seepage Characteristics of Fractured Coal and Sandstone Based on Real-Time Micro-CT. Geofluids،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1165673
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Lv, Zhaoxing…[et al.]. Experimental Study and Percolation Analysis on Seepage Characteristics of Fractured Coal and Sandstone Based on Real-Time Micro-CT. Geofluids No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1165673
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Lv, Zhaoxing& Ji, Qianqian& Ren, Weijie. Experimental Study and Percolation Analysis on Seepage Characteristics of Fractured Coal and Sandstone Based on Real-Time Micro-CT. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1165673
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1165673
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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