OALib Journal期刊
Experiments of physical modeling for petrophysical properties of natural gas hydrate
ZHAO Qun ,
GUO Jian ,
HAO Shou-Ling ,
GENG Jian-Hua School of Information Engineering ,
Chengdu University of Technology ,
Chengdu ,
China Institute of Geophysical Prospecting ,
SINOPEC Research Institute of Petroleum Exploration ,
Development ,
Nanjing ,
China Key Laboratory of Marine Geology ,
MOE ,
Tongji University ,
Shanghai ,
China ,
,
郭建 ,
郝守玲 ,
耿建华 Keywords: Nature gas hydrate ,Physical modeling experiment ,Grain cementation ,Sensitivity ,Blanking ,物理模型实验 ,粒间胶结 ,敏感性 ,消隐
Abstract:
针对水合物沉积的悬浮、颗粒接触和胶结三种微观模式,制作一组微弱胶结非固结高孔隙度人造样品和颗粒填充渐变的三维物理模型.通过物理模型实验研究天然气水合物物性参数的敏感性.实验结果表明:在弱颗粒间胶结物和低有效应力的固结差的沉积物中,声波对孔隙流体性质较敏感.随着温度的降低颗粒胶结,改变原有沉积物的岩石物理特性,速度、弹性模量和频率升高,声波衰减和Vp VS 减小,沉积层内的反射波消隐.
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