... in production objectives. P. 501 deformation upstream oil & gas seismic index dimension seismicity reservoir characterization depletion rate onset geophy earthquake time window knowledge management grasso lacq hydraulic fracturing production parameter fracture reservoir geomechanics...

... strength in-situ stress criterion upstream oil & gas wellbore wall mpa production monitoring reservoir surveillance injection production control onset wellbore design tangential stress reservoir characterization thermal effect stability equation non-isothermal condition horizontal...

..., and one with high porosities where dilation do not occur. The critical porosity separating the two regimes was found to depend on the confining stress. The analysis also showed that the shear stress level at the onset of dilation depends on the ratio between the in situ horizontal stress under which...

... in-situ stress state on a rock sample, and then we have performed reloading experiments to determine the shape of the damage surface. The experiments show that the method may allow us to determine the in-situ stress magnitudes with an accuracy of 10-15%. P. 171 onset estimation upstream oil...

... describe and quantify onset of acoustic emission. P. 23 onset point onset acoustic emission virgin holcomb surface unander radial stress holcomb surface reservoir characterization upstream oil & gas solid vertical line show ae activity virgin damage surface stress state sharpness...

... completion installation and operations quantity flow assurance basin santarelli gas rate basin scale rock mechanics clastic rock correlation rock type sand influx phenomenon field data sedimentary rock sand influx morita italy government northern adriatic basin onset san donato geology...

... ABSTRACT A semi-analytic elastoplastic model predicting the onset of failure in wellbores subjected to in-situ stress and pore pressure fields is presented. The model also has sanding applications. Rock elastic behaviour is modelled as being linear, with the plastic response described by a non...