Fractured Rock Permeability as a Function of Temperature and Confining Pressure
نویسندگان
چکیده
منابع مشابه
Permeability of Fractured Media under Confining Pressure: A Simplified Model
An elastic-plastic model was developed to describe the deformation and permeability of fractured rocks under confining pressure. Elastic and elastic-plastic contact models were used in the model to analyze the deformations of a representative element containing a single fracture under various confining pressures. The present work utilized elements from contact mechanics and viscous flows to der...
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[1] We report on laboratory experiments designed to investigate the influence of pore pressure oscillations on the effective permeability of fractured rock. Berea sandstone samples were fractured in situ under triaxial stresses of tens of megapascals, and deionized water was forced through the incipient fracture under conditions of steady and oscillating pore pressure. We find that short‐term p...
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When the permeability field of a given porous medium domain is heterogeneous by the existence of randomly distributed fractures such that numerical investigation becomes cumbersome, another level of upscaling may be required. That is such complex permeability field could be relaxed i.e., smoothed by constructing an effective permeability field. The effective permeability field is an approximati...
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Cracks in a rock mass subjected to a uniaxial stress will be preferentially closed depending on the angle between the fracture normal and the direction of the applied stress. If the prestress fracture distribution is isotropic, the effective elastic properties of such a material are then transversely isotropic due to the preferred alignment of the cracks. Velocity measurements in multiple direc...
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Osmotically driven water flow across the corneal epithelium and endothelium has been measured as a function of temperature. For both membranes deviations from a single straight-line relationship are found in a logarithmic plot of hydraulic conductivity against 1/T. Both membranes show a high (14 to 16 kcal per mole) apparent activation energy at temperatures between 23 degrees C. and 5 degrees ...
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ژورنال
عنوان ژورنال: Pure and Applied Geophysics
سال: 2015
ISSN: 0033-4553,1420-9136
DOI: 10.1007/s00024-015-1073-2