... rock rock type geological subdiscipline segmental lining mixed face condition tunnel excavation finite element modeling locked-in stress tunnel construction contraction clearance horizontal stress tbm tunneling tunnel excavation tunnel lining reservoir characterization lining...

... ABSTRACT A previously developed geomechanical model for a drilling test site was updated for a new, innovation test well drilled on the same site. New offset loss circulation data were evaluated and updated for the minimum horizontal stress profile. Critical mud weight window considering...

... oriented in directions similar to the maximum horizontal stress and that the fractures are not critically stressed in the current state. Preliminary magnitude interpretations suggest a strike-slip geological regime at target depths. INTRODUCTION Cornell University aspires to utilize geothermal energy...

... ABSTRACT Analysis of borehole wall failures, breakouts, is the primary method of constraining the maximum horizontal stress in deep wells. To estimate stress using the breakout method, one needs to measure the breakout width from image or caliper logs, and use a failure theory to predict...

... field seismic inversion target log pressure map acoustic impedance seismic model geological subdiscipline inversion reservoir characterization horizontal stress variation esmaeilpour overburden stress university fracture symposium ARMA 23 182 3D In-situ Stress Characterization Using...

... ABSTRACT Multi-branch radial boreholes can be drilled and combined with hydraulic fracturing to efficiently stimulate tight gas reservoirs. This paper experimentally investigates how horizontal stress difference affects fracture geometry and breakdown pressure in multi-branch radial borehole...

... government rock type well logging united states government coalbed methane upstream oil & gas coal bed methane complex reservoir china government log analysis geologist geology coal seam gas coal seam reservoir geomechanics poisson horizontal stress principal stress bottom layer ordos...

... mud weight geological subdiscipline collapse pressure ann 4 10 ann 6 10 horizontal stress zoback wellbore design drilling fluids and materials reservoir characterization drilling parameter correlation ann 5 10 drilling event neural network wellbore integrity dataset predict pore...

... fracture injection fracture pressure mini-frac test reservoir geomechanics futuregen 2 propagation pressure ibdp appriou eau claire formation minimum principal stress geology hydraulic fracturing geological subdiscipline probability stress gradient horizontal stress ARMA 23 0919...

... and Walters (2007) note that a hydraulic fracture is induced in a well when the bottomhole injection pressure exceeds the fracture propagation pressure, which is a function of the smallest in situ principal stresses, usually a horizontal stress. In this sense, Perkins and Gonzalez (1984) attest that when cold...

... of subsurface stresses with rock type and depth. For example, if we assume poroelastic coupling and anisotropic symmetry, quantifying the horizontal stress magnitudes with depth requires log-derived density, acoustic velocities, mineral composition, and pore-pressure properties as input, plus additional...

.... The Longmaxi reservoir has an abnormally high pore pressure gradient which ranges from 16.7 kPa/m to 21.7 kPa/m. The stress regime of the Luzhou block is primarily strike-slip type, with an overburden pressure gradient of 25.5kPa/m, and a minimum horizontal stress gradient range of 18.8 to 24.5kPa/m. According...

... oil & gas brazil government fracture reservoir characterization fluid dynamics geology flow in porous media horizontal stress hydraulic fracturing geological subdiscipline slave element propagation hydraulic fracture propagation geologist united states government reservoir...

... storage university reservoir characterization hydrogen storage tarkowski horizontal stress geological subdiscipline united states government hydrogen williston basin geo-mechanical characterization mineral reservoir geomechanics north dakota salt cavern geological formation storage option...

... strain rock type sedimentary rock reservoir geomechanics injection geology upstream oil & gas mudrock asia government south korea government modeling & simulation geological subdiscipline mudstone cap rock donghae-1 field horizontal stress rock failure minimum horizontal stress...

... is that the average values of the vertical stress, the two horizontal stresses (as compared to their actual distributions), and the corresponding deviatoric of those average stresses are adequate to estimate the pillar's creep behavior and structural stability. Therefore, the salt-pillar-design equations relate...

... to forecast subsequent changes to these horizontal stress magnitudes associated with pore fluid pressure depletion or injection (stress paths) is vital for unconventional resources development planning, including predicting maximum injection pressures for gas containment associated with cyclic "huff and puff...

...). complex reservoir production monitoring upstream oil & gas production logging fracture propagation horizontal stress fracture reservoir surveillance fiber acoustic sensing extension zhang spe journal low-frequency information hydraulic fracturing production control fracture geometry...

... management annular pressure drilling pore pressure horizontal stress subsurface engineering burghardt risk and uncertainty assessment fracture characterization posterior distribution stress state compressive strength drilling data acquisition artificial intelligence wellbore design sosat stress...

... formation. reservoir characterization reservoir geomechanics drilling operation complex reservoir pore pressure ordovician formation borehole collapse graben formation shunbei field horizontal stress fracture pressure logging data wellbore design wellbore integrity upstream oil...