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The Calculation of Coal Rock Fracture Conductivity with Different Arrangements of Proppants
المؤلفون المشاركون
Patil, Shirish
Li, Yuwei
Meng, Wannong
Rui, Ray
Wang, Jinghui
Jia, Dan
Chen, Gang
Dandekar, Abhijit
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-26
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
An accurate evaluation of coal rock fracture conductivity is an important prerequisite for predicting the productivity of CBM wells.
Coal rock is soft and fragile, with low elastic modulus and high Poisson ratio.
In the process of fracturing flowback, the contact deformation between proppant and fracture wall will affect the fracture conductivity when the proppant is embedded in the coal rock; thus the calculation method of plate fracture conductivity is no longer suitable for the evaluation of coal rock.
Based on the contact deformation theory of elastic mechanics, a method for calculating contact deformation of proppant in fracture is proposed.
Considering the effect of the deformation and embedded depth of proppant and the tortuosity of pore flow channel between proppant particles on fracture conductivity, a model for calculating fracture conductivity of coal rock fractures under three kinds of proppant arrangement (Model 4-1, Model 3-1, and Model 2-1) is established.
Comparison of calculation results of theoretical model and experiments confirmed that the arrangement of proppant in coal rock fracture is closest to Model 3-1, and the influence of mechanical parameters of coal rock and proppant on fracture conductivity is calculated and analyzed by this theoretical model.
The study shows that the coal rock fracture conductivity is affected little by Poisson’s ratio of coal rock and proppant, which is greatly influenced by the elastic modulus of them, and the effect of particle size of proppant is especially significant.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, Yuwei& Meng, Wannong& Rui, Ray& Wang, Jinghui& Jia, Dan& Chen, Gang…[et al.]. 2018. The Calculation of Coal Rock Fracture Conductivity with Different Arrangements of Proppants. Geofluids،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1157910
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, Yuwei…[et al.]. The Calculation of Coal Rock Fracture Conductivity with Different Arrangements of Proppants. Geofluids No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1157910
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, Yuwei& Meng, Wannong& Rui, Ray& Wang, Jinghui& Jia, Dan& Chen, Gang…[et al.]. The Calculation of Coal Rock Fracture Conductivity with Different Arrangements of Proppants. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1157910
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1157910
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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