期刊
ENERGIES
卷 5, 期 10, 页码 4057-4075出版社
MDPI AG
DOI: 10.3390/en5104057
关键词
methane hydrate; triaxial compressive property; stress-strain relationship; constitutive model; Duncan-Chang model
资金
- Research Consortium for Methane Hydrate Resources in Japan (MH21 Research Consortium) in the Japan's Methane Hydrate R&D Program by the Ministry of Economy, Trade and Industry (METI)
A constitutive model for marine sediments containing natural gas hydrate is essential for the simulation of the geomechanical response to gas extraction from a gas-hydrate reservoir. In this study, the triaxial compressive properties of artificial methane-hydrate-bearing sediment samples reported in an earlier work were analyzed to examine the applicability of a nonlinear elastic constitutive model based on the Duncan-Chang model. The presented model considered the dependences of the mechanical properties on methane hydrate saturation and effective confining pressure. Some parameters were decided depending on the type of sand forming a specimen. The behaviors of lateral strain versus axial strain were also formulated as a function of effective confining pressure. The constitutive model presented in this study will provide a basis for an elastic analysis of the geomechanical behaviors of the gas-hydrate reservoir in the future study, although it is currently available to a limited extent.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据