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Short-Timescale Chemo-Mechanical Effects and their Influence on the Transport Properties of Fractur compaction progresses as temperatures are incremented. Isothermal (∼20°C) circulation tests in limestone show similar compaction driven by pressure solution. Where circulation remains undersaturated in ., the change in permeability spontaneously switches from net reduction to net increase as a wormCanyon 发表于 2025-3-24 00:58:27
Permeability Evolution During Non-linear Viscous Creep of Calcite Rocks,ses with increasing effective pressure. Most of the permeability reduction induced during compaction is irreversible and probably owes to plastic processes. As has been found in previous studies on hot-pressed calcite aggregates, permeability, ., is nonlinearly related to porosity, ø. Over small chaObscure 发表于 2025-3-24 02:35:47
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Fluid Pressure Variation in a Sedimentary Geothermal Reservoir in the North German Basin: Case Studferent new experiments in the borehole. A pressure step test indicates generation and extension of multiple fractures with closure pressures between 6 and 8.4 MPa above formation pressure. In a 24-hour production test 859 m. water was produced from depth indicating an increase of productivity in comCongestion 发表于 2025-3-24 14:24:34
Monitoring Fracture Propagation in a Soft Rock (Neapolitan Tuff) Using Acoustic Emissions and Digitugh a combination of AE and photographic monitoring in an experimental program considering samples with artificial pre-existing heterogeneities, which simulate the . discontinuities. For a range of rock bridge geometries the mechanisms and timing of different stages of the failure process are identiconnoisseur 发表于 2025-3-24 15:20:12
Understanding the Seismic Velocity Structure of Campi Flegrei Caldera (Italy): From the Laboratory a pressurization-depressurization cycle. Tomographic seismic velocity distributions obtained from field recordings are in general agreement with the laboratory measurements. Integration of the laboratory ultrasonic and seismic tomography data indicates that the tuffs of the Campi Flegrei caldera can恶名声 发表于 2025-3-24 22:25:43
Spatial Scaling of Effective Modulus and Correlation of Deformation Near the Critical Point of Frac; b)-‘1/.’ scaling of heterogeneities observed in one-dimensional well-log samples; c) spatial correlation of slip displacements induced by water injection. The effective modulus scaling modifies the spatial correlation of components of displacement or strain for a domain close to the critical point货物 发表于 2025-3-24 23:16:35
Book 2006ting mechanical and fluid transport behavior in rocks at different spatial scales...Part II contains contributions discussing fluid flow and transport in rocks as observed on the laboratory scale and in boreholes. The evolution of rock damage pertinent to the stability of underground excavations is