... was measured for sandstone at both hydrostatic and differential stress up to 60MPa in the laboratory. P-wave velocity increases with increasing confining pressure and differential stress, at different rates. The proposed model can fit the P-wave velocity measurement results very well. It provides an approach...

... reservoir geomechanics fluid dynamics clastic rock mudrock flow in porous media enhanced recovery mudstone displacement equation seismicity experimental data geological subdiscipline climate change thm process differential stress experiment reservoir characterization permeability effective...

... and static elastic moduli have been studied extensively and is out of the scope of this paper. VTI samples with non-uniform static elastic moduli are expected to have similar differences in velocity and dynamic moduli. upstream oil & gas differential stress elastic property geologist rock type...

... compression test mpa mechanical property engineering failure strength water-saturated sample transition deformation failure mode strength differential stress water-saturated condition rock sample triaxial compression test shear fracture ARMA 23 0311 Effect of Water Saturation on Failure...

... shale reservoir creep experiment experiment material parameter viscoplastic model pore pressure experimental data creep strain rate viscoplastic strain rock type reservoir geomechanics conductivity differential stress creep strain fracture conductivity ARMA 23-0264 Study on the Elasto...

... the relationship between creep strain and time in the experiment, the creep law of shale rock can be obtained. The strain rate is mainly affected by differential stress and temperature. It can be seen from the results that at 110 °C, the shale creep of Chang-7 reservoir exhibits steady-state creep behavior within...

... fracturing accuracy transition zone notch interaction experiment prediction Artificial Intelligence algorithm differential stress fracture interaction dataset fracture approach angle geometry hydraulic fracture friction angle architecture ARMA 19 362 Artificial Neural Network to Predict...

... boundary condition hydraulic fracture propagation stress measurement differential stress principal stress constitutive parameter vertical hydraulic fracture propagation core sample shale gas fracturing fluid creep strain deviator stress fracture propagation experimental data creep experiment...

... and pressure dependent mechanical responses of the specimen under stresses up to 50 MPa of confining and 60 MPa of differential stress. Young's modulus and Poisson's ratio of the specimen under different stress conditions are reported in the paper. Within the elastic region, the Young's modulus increased...

... of the Zechstein evaporites overlying Rotliegend reservoirs in the Northwestern Europe. Results showed that the salt creep largely depends on the salt properties, differential stress and in-situ temperature. Estimated closure times of a reamed interval, for the maximum underbalance, were in the range of a few...

... MPa stress ratio radial water jet drill diameter differential stress excavation in-situ stress breakout Reservoir Characterization hole-profile geometry nozzle strength borehole stability tangential stress stress field ARMA 19 1951 Numerical modelling of the influence of in-situ...

... & Gas Wellbore Design salt uncertainty creep closure Symposium constitutive model salt formation differential stress closure salt type salt creep salt body creep open-hole exposure time parametric analysis borehole diameter borehole closure ARMA 18 984 Managing Creep Closure in Salt...

... and heated samples underwent stress-stepping creep experiments under 30 MPa confining pressure and up to 60 MPa of axial differential stress. One ambient and one heat-treated granite were failed at constant strain rates To evaluate the impact of microfractures on short-term strength. Ambient short-term...

... salt tectonic wavelength urai differential stress deformation pattern internal structure viscosity ratio evolution salt basin ARMA 18 1047 A sensitivity study on internal structure in salt tectonics with compressive environment Shiyuan Li, Fuyao Li China University of Petroleum-Beijing...

... of the rocks and the corresponding stress state. reservoir geomechanics approximation deviation coefficient hydraulic fracturing volumetric strain radial stress differential stress experimental result fraction Reservoir Characterization stress curve information loading test fracture...

... geomechanics crack intensity x-ray μ-ct scan tertiary creep stage bulk density differential stress imaging technique reach tertiary creep stage average crack intensity shale specimen creep stage intensity ARMA 18 0461 Analysis of Crack Propagation in Shale Using Microscopic Imaging Techniques...

... differential stress injectivity MPa injection re-injection test continuous injection ARMA 18 297 Cyclic hydraulic fracturing of cubic granite samples under triaxial stress state with acoustic emission, injectivity and fracture measurements Zhuang, L. and Kim, K.Y. Korea Institute of Civil Engineering...

... ABSTRACT: We use an evolutionary geomechanical model to study stress and deformation in sediments during the emplacement of a frontal-rolling salt sheet. We show that overturned-roof sediments develop high differential stresses and plastic strains. We illustrate that these high plastic...

... into the formation and generates shear fractures. US government acoustic emission reduction test wellbore integrity pore pressure Mining Science international journal experiment reservoir geomechanics Upstream Oil & Gas Rock mechanics AE event Reservoir Characterization differential stress...

... initiation MPa Upstream Oil & Gas fractured specimen fluid injection source differential stress reservoir geomechanics Reservoir Characterization Laboratory Observation pore pressure hydraulic fracture growth experiment injection source propagation fracture specimen far-field stress...