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Keywords: invariant
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Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-028
... upstream oil & gas rock salt axisymmetric compression us government displacement mpa compression test creep test mean stress reservoir geomechanics axisymmetric extension test sandia national laboratory invariant axial stress extension test diameter reservoir characterization...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-656
... fluid modeling Upstream Oil & Gas Artificial Intelligence invariant interaction term experiment reduction fiber matrix symmetry compliance model parameter elastic property stiffness Reservoir Characterization constraint tensor constitutive theory transverse isotropy anisotropy...
Proceedings Papers

Paper presented at the Alaska Rocks 2005, The 40th U.S. Symposium on Rock Mechanics (USRMS), June 25–29, 2005
Paper Number: ARMA-05-818
... elastic homogeneous medium indicates that fractures evolve relative to three timescales associated with transitions between regimes characterized by large/small fluid lag, large/small effective fluid viscosity, and large/small °uid leak-o®. The three invariants of the model are given by the ratio of the...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0877
... drilling of oil and gas wells. Wellbore stability requires a proper balance between the in situ stresses, wellbore fluid pressure and mud chemical composition. Most oil field stability studies have used the von Mises failure criterion. This is based on the second invariant of deviatoric stress and differs...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0091
... Upstream Oil & Gas invariant failure loci reservoir geomechanics criterion mohr-coulomb criterion nonlinear portion excavation strain rate parameter value failure data strength criteria Lode angle lode parameter saltrock specimen general failure criteria Rock Mechanics as a Guide...
Proceedings Papers

Paper presented at the The 17th U.S. Symposium on Rock Mechanics (USRMS), August 25–27, 1976
Paper Number: ARMA-76-0419
... criteria that the mean stress (or first invariant), satisfying Laplace's equation, remains unperturbed. As a consequence of not disturbing the mean stress of the original field, such shapes which will be termed "harmonic holes" also, apparently, produce a minimum stress concentration in any free field...

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