Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation
Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation
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砂岩光谱诱导偏振响应对温度的依赖性及其与渗透率估算的相关性
DOI：
10.1029/2010jb007526
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发表时间：
2010
影响因子：
--
通讯作者：
Nover G.
中科院分区：
文献类型：
--
作者：
Zisser N;Kemna A.;Nover G.
从电频谱激发极化（SIP）响应估计渗透率的可能性可能是SIP测量提供的最重要的好处。因此，可以推断，在未来，SIP测量将更频繁地在现场规模或在测井环境中进行，以估计渗透率。然而，在浅层地下，温度通常表现出季节性变化，在深层地下，温度通常随深度增加。因此，了解SIP响应对温度的依赖性是必要的，以避免受热效应影响的数据集的可能误解。在我们的研究中，我们提出了一个半经验的框架来描述SIP响应的温度依赖性。我们简要介绍SIP响应及其与渗透性的关系方面的电化学极化机制和联合收割机这个配方与离子迁移率对温度的依赖关系。我们将我们公式的预测与在0°C至80°C温度下对砂岩进行SIP测量的实验数据进行比较。使用经验科尔-科尔模型和正则化德拜分解程序，将测量的SIP响应转换为弛豫时间分布。SIP响应被认为是在良好的协议与理论模型。直流电导率和弛豫时间的温度依赖性主要由离子迁移率对温度的依赖性控制，所研究砂岩的弛豫时间分布的形状几乎与温度无关。因此，可以容易地校正温度对SIP响应的影响。
The possibility to estimate permeability from the electrical spectral induced polarization (SIP) response might be the most important benefit offered by SIP measurements. It can thus be deduced that, in the future, SIP measurements will be carried out more frequently at the field scale or in a well‐logging context to estimate permeability. In the shallow subsurface, however, the temperature generally exhibits seasonal variability, and in the deeper subsurface, it usually increases with depth. Hence, knowledge about the dependence of the SIP response on temperature is necessary in order to avoid possible misinterpretation of datasets impacted by thermal effects. In our study, we present a semiempirical framework to describe the temperature dependence of the SIP response. We briefly introduce the SIP response and its relation to permeability in terms of an electrochemical polarization mechanism and combine this formulation with relationships for the dependence of ionic mobility on temperature. We compare the predictions of our formulation with the experimental data from SIP measurements performed on sandstone at temperatures from 0°C to 80°C. The measured SIP response was transformed into a relaxation time distribution, using the empirical Cole‐Cole model and a regularized Debye decomposition procedure. The SIP response was found to be in good agreement with the theoretical model. The temperature dependence of both direct current conductivity and relaxation time is controlled mainly by the dependence of ionic mobility on temperature, and the shape of the relaxation time distribution of the investigated sandstone is almost independent of temperature. The temperature effect on the SIP response can therefore be easily corrected.
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影响因子：
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DOI：
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