.... wellbore design strength reservoir characterization upstream oil & gas equilibrium reservoir geomechanics size effect specimen bond strength equation stress rate rock specimen strain rate hydraulic fracturing specimen size incident bar loading rate notch tensile strength contact...

... and Lu, 2014; Lu et al., 2015). hydraulic fracturing experimental evidence breakage strength stress rate experiment load test variability specimen rock tensile strength testing loading load-rate dependence dependence Upstream Oil & Gas Loading Rate prediction zhurkov static...

...). best-fit line mode ii university kartchner cavern hydraulic fracturing upstream oil & gas escabrosa limestone coconino sandstone fracture toughness intercept stress rate subcritical crack growth parameter fracture strength specimen ARMA 15-315 Fracture Testing in Modes I, II...

... & Gas stress rate compaction creep strain data Reservoir Characterization creep strain stress history deformation History representation uncemented reservoir sand equation ARMA 10-171 Inverting for creep strain parameters of uncemented reservoir sands using arbitrary stress-strain data...

... Abstract In this paper, statistical aspects of the constant stress-rate test were investigated. The effects of the number of specimens on the subcritical crack growth parameters were examined. The grooved disk specimens were used to determine the fracture strength. 7 groups of fictitious data...

... ABSTRACT: Twenty seven triaxial compression tests have been conducted on welded tuff at constant and controlled axial piston displacement rates. The piston displacement rates were then converted to axial stress rates according to a nearly linear load-displacement relation. Specimens were...

..., structural and empirical models have been formulated from creep tests, strain and stress rate controlled tests, cyclic loading' tests and constant strain-rate triaxial tests. Uniaxial, triaxial and polyaxial borehole closure testing has been performed to assess the validity of each model. 1 INTRODUCTION...

... ABSTRACT ABSTRACT In the "Standardized Tests f or Determining the Physical Properties of Mine Rock" proposed by the U.S. Bureau of Mines, the factors conditioning the physical properties of rock are discussed and specifications for each particular test are given. A stress rate of 100 psi/sec...