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首页> 外文会议>2011 International Conference on Materials for Renewable Energy Environment >Experimental characterizations and modeling of electrical resistance in hydrate bearing sediments
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Experimental characterizations and modeling of electrical resistance in hydrate bearing sediments

机译：含水合物沉积物中电阻的实验表征和建模

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摘要

Electrical resistance is an important method in characterization of oil/gas reservoirs, and can also be applied to gas hydrate bearing formations. Formation of gas hydrate has many significant impacts on subsea sediments. Since electric ions are excluded in hydrate, hydrate formation can change the distribution and mobility of electrolytes in subsea sediments, which will affect the resistance of the sand matrix. In this study, experiments have been conducted to measure resistance in a large sand pack simulating the conditions of hydrate formation in sub sea sediments. The resistance of the sand matrix with various hydrate saturations is measured, and the results are discussed based on the Archie's formulas for rocks. The effect of gas hydrate is revealed. The data presented in this paper can be used for the characterizations of the porosity and hydrate saturation in hydrate bearing subsea sediments during well logging.
机译：电阻是表征油气储层的重要方法，也可以应用于含天然气水合物的地层。天然气水合物的形成对海底沉积物有许多重大影响。由于水合物中不含电离子，因此水合物的形成会改变海底沉积物中电解质的分布和迁移率，这会影响砂岩基质的电阻。在这项研究中，已经进行了测量大型沙堆中的阻力的实验，以模拟海底沉积物中水合物的形成条件。测量了具有不同水合物饱和度的砂基质的抵抗力，并根据阿尔奇公式对岩石进行了讨论。揭示了天然气水合物的作用。本文提供的数据可用于表征测井期间含水合物海底沉积物的孔隙度和水合物饱和度。

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