... Reservoir Characterization reservoir geomechanics Upstream Oil & Gas Thickness rock joint contact area ratio artificial rough rock joint 13th international congress strain gauge output bar rock mechanics isrm13 transmission coefficient specimen joint thickness wave propagation...

... Characterization displacement chain inclinometer determination test adit extensometer reservoir geomechanics shotcrete load plate vertical displacement rock mass cross section loading tunnel Upstream Oil & Gas strain gauge excavation mobilised support pressure plate load test Harmonising...

... group is automatically recorded by the displacement meters and the strain gauges buried in the model. Cavern stability under different gas production process, the failure pressure of the caverns and the impact of mudstone interlayer on cavern stability are analyzed. Subject: Underground storage Keywords...

... crystalline rock specimen Upstream Oil & Gas hold time porosity in-situ porosity Reservoir Characterization well logging microcrack pore MPa granite laboratory investigation forsmark site structural geology formation factor strain gauge Lac du Bonnet granite loading 11th Congress...

... investigation optical full field strain measurement strain gauge microscope Microstructure strain measurement hydro-mechanical behaviour deformation saturation perpendicular Upstream Oil & Gas micromechanical investigation suction evolution means 11th Congress of the International Society...

... with two strain gauges with a specific spacing. A longitudinal wave is applied by a pendulum and the stress waves in the pressure bars are measured using the strain gauges. A wave separation method is adopted in order to extend the effective loading duration and to achieve a larger measurable strain...

... residual stress deformation Upstream Oil & Gas application absolute value flange surface magnetic permeability steel support ferromagnetic material magnetic anisotropy sensor tunnel flow in porous media strain gauge stress measurement compression magneto-strictive effect 19 Akutagawa...

... schists and basic intrusives (amphibolites), granite and pegmites. renewable energy Rock mechanics compression test Himachal Pradesh Reservoir Characterization testing machine specimen schist triaxial cell strain gauge servo-controlled loading system quartz mica schist complete stress...

... stress cell unrecognized anisotropy of the rock (Martin & Christiansson, 1991) heterogeneity of the rock stress or strain induced damage of a pilot hole wall or core Reservoir Characterization orientation strain gauge gauge Upstream Oil & Gas reservoir geomechanics...

... of core disking was observed during overcoring in the measurement. In stress measurements by the stress relief method under high rock stress, a phenomenon of core disking is sometimes observed during overcoring. In the case that the core disking was observed. Health & Medicine strain gauge...

... ABSTRACT: Strain gauge, acoustic emission and scanning electron microscope observations were used to identify and characterize the development of stress-induced brittle microfractures in samples of Lac du Bonnet granite loaded in uniaxial compression. Results suggest that initial cracking...

... ABSTRACT: A digital image analysis strain measurement method has been developed that can match or surpass the precision and accuracy of conventional strain gauge methods. Its main advantage is that the sensor does not need to be in contact with the surface to be measured, thus eliminating its...

... Reservoir Characterization average horizontal stress borehole stress state reservoir geomechanics long axis major principal stress Upstream Oil & Gas strain gauge horizontal stress overcore stress field southern area vertical stress stress measurement metals & mining...

... of the mountain is approx. 260 m. The observation section is composed mainly of Alternated Basalt, and the velocity of the S wave Vs is 1.1 to 1.6 km/sec. The earthquake observaiton is carried out using 8 accelerometers including one at the Entrance, 10 strain gauges set on the lining concrete, and 6 strain...

... structural geology strain gauge Probe Rock Stress Measurement glue stress measurement Sweden rosette Comparative stress measurement by two overcoring methods in deep holes at Siilinjarvi Mine, Finland Comparaison de deux methodes de surcarottage dans des forages profonds pour la determination des...

.... particle velocity strain gauge excavation tunnel accelerometer correlation lifter hole lining surface dynamic behavior pilot tunnel sensor Upstream Oil & Gas tokyu construction co measurement device time series lining tunnel lining main tunnel deformation Dynamic behavior of tunnel...

... thinner. Yield stress of the steel is 421MPa and the uniaxial compressive strength of the concrete is 18.6MPa at four weeks of curing. Measured points in the inner rings are shown by open circles in Fig.1. Artificial Intelligence Thickness strain gauge Reservoir Characterization Upstream Oil...

... ultrasonic pulse velocity point load index travel time Artificial Intelligence ultrasonic pulse travel time Norway pulse travel time stress field Reservoir Characterization strain gauge mechanical property stress measurement Point Load Testing Upstream Oil & Gas residual stress...

..., measurements to a depth of about 500 m are needed. Two main problems had to be solved in this connection: To develop a remote controlled, automatic, measuring device and, because of the chosen method, to master the technique of cementing strain gauges under water, since deep boreholes normally contain water...

... be explained on account of a behaviour different from what was considered i. e. transversaly isotropic body, and/or because the size of the specimen was such to impose gluing and test of each strain gauge in separate instead of using the rosette of strain gauges whose dimensions were excessive for its being...