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Keywords: wellbore breakout
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2058
... of the wellbore to study its effect on hoop stresses in the nearby region. Wellbore Design Simulation wellbore integrity modeling wellbore geometry Reservoir Characterization Upstream Oil & Gas boundary condition hoop stress breakout velocity profile drilling operation wellbore breakout...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0826
... with overbalanced drilling mud pressure, the wellbore can have a final breakout shape that is much larger than the initial one due to seepage induced stress changes around the wellbore. The proposed models provide a useful tool for understanding and predicting time-dependent wellbore breakouts for drilling...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-244
... influenced by anisotropic in situ stresses and formation permeability. This proposed model provide a useful tool for evaluating the risk of wellbore breakout. Introduction A “borehole breakout” is a phenomenon in which portions of failing rock spalls from the wellbore wall due to high compressive stress...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-445
... Upstream Oil & Gas wellbore breakout prediction coefficient prevent wellbore breakout Wellbore Design drilling operation overburden stress strength failure criterion mud weight horizontal stress West Kazakhstan field breakout numerical model wellbore stability analysis pore pressure...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-153
... gas FIELD Drilling reservoir geomechanics tensile fracture cx-565 well Wellbore Design mud weight orientation pore pressure China subsidence equation hmin wellbore integrity caliper data wellbore breakout rock strength breakout Magnitude 1. INTRODUCTION The Sichuan basin...
Proceedings Papers

Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0841
...Rock Mechanics Contrfbutions and Challenges, Husb'ulid & Johnson (eds) ¸ 1990Balkema, Rotterdam. ISBN906191 1230 Strength anisotropy incrystalline rock: Implications for assessment of in situ stresses from wellbore breakouts L.Vemik & M.D.Zoback Department of Geophysics, Stanford University...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0553
... in the vicinity of the faults and epicenters of the earthquakes. Stress-induced wellbore breakouts were used as indicators of the horizontal stress direction in another borehole. METHODS A suite of geophysical measurements in holes SSW-1, SSW-2, SSW-3, DRB- , and DRB-11 (Figure 1) and a suite of hydraulic...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0741
... reservoir geomechanics borehole borehole wall far-field stress Reservoir Characterization wellbore breakout horizontal stress intermediate principal stress Upstream Oil & Gas shear failure cross-section breakout spall geometry average value Zoback experimental breakout...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0877
...Rock Mechanics as a Guide for Efficient Utilization of Natural Resources, Khair (ed.) ¸ 1989 Balkema, Rotterdam. ISBN 90 6191 871 5 Field investigation of wellbore breakouts as an indicator on in-situ stress orientation R.Hugo Morales, Ahmed Abou-Sayed* & Arton H.Jones Terra Tek Inc. * Formerly...

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