... Abstract In this research, the variation of thermal conductivity with temperature of a limestone and its relationship with porosity is studied. Samples from Prada formation, a lower Cretaceous limestone from the Catalan Pyrenees (Spain), obtained from the Tres Ponts road tunnel were subjected...

... data was compared. The best replication of the temperature inside the rock near the surface was achieved with a conductivity of 2.8 and 1.0 W/(m•K) for granite and soil respectively. When looking at the deeper sections, the best fit was obtained for a conductivity of 5.5 and 1.0 W/(m•K) for granite...

... properties of COX is considered by applying anisotropic THM parameters. A pore pressure dependent permeability model has been developed to explain the experimental observations. The dependency of thermal conductivity on saturation degree and the temperature effect on water retention behaviour have been...

... fracture characterization mechanical interaction closure stress hydraulic fracturing aperture half-space deformation surface profile conductivity Reservoir Characterization Upstream Oil & Gas conductivity decline behavior rough fracture closure fracture closure closure model...

... from in situ measurements. However these data, whether they be expressed in temperature or flux, are not readily available. Reservoir Surveillance History coolant production control Upstream Oil & Gas porosity conductivity production monitoring isotherm radius new approach...

... displacement conductivity matrix mechanics Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 Hydraulic fracture propagation under steady state fluid flow A. Pouya, V.-L. Nguyen & S...

... Abstract The advantage of using centrifugal acceleration as a fluid driving force is that it acts as a body force in a way that is similar to that of gravity. To compare the saturated hydraulic conductivity of impermeable rocks, constant head tests under centrifugal acceleration and gravity...

...–2008.With these technologies, the "shale gas revolution" had arrived in the United States and Canada, but it was not until about 2010–2012 that the full economic impact was realized. complex reservoir shale gas fracture aperture orientation Dusseault Simulation conductivity fabric...

... Abstract To exactly evaluate thermal conductivity of a rock specimen taken from a great depth, pressure effects have to be taken into consideration. We developed a new measurement system of thermal conductivity of rock specimens under high confining pressure and high pore-fluid pressure...

... Characterization Fluid Dynamics sandstone Artificial Intelligence intensifier void space flow in porous media pore permeability measurement eurock 2012 application Kimachi sandstone conductivity specific storage connectivity Upstream Oil & Gas porosity x-ray computed tomography geometry...

.... The grouting effect is quantified by assessments of the average conductivity of the rock mass and of the grout spread outside the tunnel. The evaluation indicates that the stop criteria in the design were chosen conservatively relative to the achieved grouting results. A model is discussed where the required...

... resistivity meter. Results of field measurements were used to estimate the components of the velocity tensor and conductivity tensor characterising studied sites. This allowed to establish the relationship between the characteristic parameters of the tensors. Determination of these parameters in turn enabled...

... cracks and the crack width at a given internal water pressure. The design of reinforcement depends on the bedding of the lining (e.g. deformability of the rock mass), the hydraulic conductivity of the rock mass in relation to the concrete lining, the external and internal water pressure, and the in-situ...

... cav- ern, the authors conducted the in-situ air-tightness experiment in an unlined cavern and the numerical assessment to evaluate the air-tightness of experiment cavern during pressurization in advance. For the numerical air-tightness assessment, firstly, various hydraulic conductivity data...

...+ and resistivity meter ABM Terrameter SAS 300. Results of field measurements were interpreted to estimate components of velocity tensor and conductivity tensor in the site under study. It allowed to establish the relationship between characteristic parameters of the tensors. This knowledge allows to find out mean...

... Characterization Upstream Oil & Gas Rock mechanics international journal shape factor fluid pressure fracture equation complex reservoir criterion borehole conductivity Zimmerman permeability fractured reservoir Rock Mechanics in Civil and Environmental Engineering Zhao, Labiouse, Dudt...

... ABSTRACT: Fluid flow through random two-dimensional fracture networks has been investigated, with the aim of establishing a methodology for estimating the macroscopic effective hydraulic conductivity from the parameters of the fracture network. In the cases examined, the lengths...

... in boreholes, small-scale field tests using the multi-probe method and labo- ratory measurements using the transient plane source method (TPS). The parameters measured by each method are thermal conductivity W/(m K)) and diffusivity m2/s), both parallel to the foliation and perpen- dicular to the foliation...

... of head. Upstream Oil & Gas Lötschberg Base Tunnel Quintner Limestone elevation crest tunnel Reservoir Characterization discharge rate conductivity environmental impact limestone LBT excavation inflow structural geology lct lat Gastere Valley aquifer Doldenhorn Nappe sediment...

... on the fault hydraulic conductivity of rocks or not is common major concerns in both engineering fields and earth science fields. To clarify the relation between hydraulic conductivity and inner structures in rocks, we have measured three principal strains and hydraulic conductivity in the intermediate...