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An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures
المؤلفون المشاركون
Zhao, Xinli
Yang, Zhengming
Luo, Yutian
Wang, Zhiyuan
Lin, Wei
Xiong, Shengchun
Niu, Zhongkun
Xia, Debin
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-05-29
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Aiming at the stress sensitivity problem of tight reservoirs with different microfractures, the cores of H oilfield and J oilfield with different microfractures were obtained through the fractures experiment, so as to study the change of gas permeability in tight sandstone core plug during the change of confining pressure.
Besides, we use the nuclear magnetic resonance (NMR) spectra of the core before and after saturation to verify whether the core has been successfully fractured.
Based on Terzaghi’s effective stress principle, the permeability damage rate (D) and the stress sensitivity coefficient (Ss) are used to evaluate the stress sensitivity of the core, which show consistency in evaluating the stress sensitivity.
At the same time, we have studied the petrological characteristics of tight sandstone in detail using thin section (TS) and scanning electron microscope (SEM).
The results show that the existence of microfractures is the main factor for the high stress sensitivity of tight sandstone.
In addition, because of the small throat of the tight reservoir core, the throat closes when the overlying stress increases.
As a result, the tight sandstone pore size is greatly reduced and the permeability is gradually reduced.
Therefore, in the development of tight reservoirs, we should not only consider the complex fracture network produced by fracturing, but also pay attention to the permanent damage of reservoirs caused by stress sensitivity.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhao, Xinli& Yang, Zhengming& Wang, Zhiyuan& Lin, Wei& Xiong, Shengchun& Luo, Yutian…[et al.]. 2020. An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1121011
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhao, Xinli…[et al.]. An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1121011
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhao, Xinli& Yang, Zhengming& Wang, Zhiyuan& Lin, Wei& Xiong, Shengchun& Luo, Yutian…[et al.]. An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1121011
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1121011
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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