Influence of boundaries on electrical and mechanical properties of rocks

边界对岩石电学和力学性质的影响

• 批准号: 242374803
• 负责人: Professor Dr. Andreas Weller
• 金额: --
• 依托单位: Institut für Geophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/242374803?language=en
• 关键词: Influence; boundaries; electrical; mechanical; properties

The systematic investigation on the influence of the internal surface of rocks on the complex electrical conductivity and the mechanical dilatation should evidence the boundary forces and its implications. The relations between the different properties are described quantitatively by the theory of irreversible thermodynamics. A variety of sedimentary rocks including clean sandstones and shaly sandstones with non-swelling clays will be investigated in this project. The results can become relevant for changes of the state of saturation of rocks in the case of extraction of geothermal energy from hot dry rocks by circulating water, by the injection of carbon dioxide in saturated rock formations or by different technologies of hydrocarbon production.

对岩石内表面对复杂电导率和机械扩张的影响的系统研究应证明边界力及其含义。不同特性之间的关系通过不可逆的热力学理论进行定量描述。该项目将研究各种沉积岩石，包括干净的砂岩和带有非固定粘土的沙利砂岩。在通过循环水从热干岩中提取地热能，通过在饱和岩层中注入二氧化碳或通过碳氢化合物生产的不同技术，将结果与岩石饱和状态的变化有关。

项目成果

Induced polarization dependence on pore space geometry: Empirical observations and mechanistic predictions

诱发极化对孔隙空间几何形状的依赖性：经验观察和机理预测

• DOI: 10.1016/j.jappgeo.2015.09.002
• 发表时间: 2015
• 期刊: Journal of Applied Geophysics
• 影响因子: 2
• 作者: Weller;Slater
• 通讯作者: Slater

Induced polarization and pore radius — A discussion

诱导极化和孔隙半径 â 讨论

• DOI: 10.1190/geo2016-0135.1
• 发表时间: 2016
• 期刊: Geophysics
• 影响因子: 3.3
• 作者: Weller;Slater;Kruschwitz;Halisch
• 通讯作者: Halisch

On the specific polarizability of sands and sand-clay mixtures

• DOI: 10.1190/geo2014-0509.1
• 发表时间: 2015-03
• 期刊: Geophysics
• 影响因子: 3.3
• 作者: A. Weller;L. Slater;J. Huisman;O. Esser;F. Haegel