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Keywords: distribution function
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1743
... characteristic complexity pressure difference heat transfer lattice boltzmann method algorithm cross section upstream oil & gas porous medium international journal analytical solution distribution function ARMA 21 1743 Study on heat transfer characteristics for fluid flow in porous media based...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-133
... ABSTRACT: The nano-indentation technique was applied to microporous carbonates from the Easter Parisian Basin made of nearly 100% calcite. Room-dried, small, irregular pieces, 5mm thick and with a polished surface of about 1 cm 2 are used. Then, the distribution function and the linear auto...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0525
.... 1. INTRODUCTION hydraulic fracturing flow pattern fan limin multiphase flow Engineering distribution function equation mining Reservoir Characterization Upstream Oil & Gas particle particle size 0 fractured rock mass reservoir geomechanics Fluid Dynamics conservation...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-223
... network random number center point fracture length artificial intelligence upstream oil & gas distribution function hydraulic fracturing fracture density krigged value simulation of human behavior histogram monte carlo 1. INTRODUCTION One of the big concerns in fractured reservoirs...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-486
... stiffness probability distribution function reliability index friction angle 1. INTRODUCTION Rock mass parameters involve various uncertainties. Utilization of probabilistic methods in rock engineering allows rational treatment of these uncertainties that significantly influence the safety of a rock...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-481
... Characterization Fluid Dynamics boundary condition node granular model Boltzmann equation geometry porosity flow in porous media important parameter self-consistent approximation seismic velocity estimation equation aspect ratio distribution function permeability rock mass pore geometry...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-522
... injection pressure Artificial Intelligence injection pressure AMV cumulative distribution function distribution function stress state reactivation analytical approach probabilistic analysis cross-section synthetic model co2 injection importance factor 1. INTRODUCTION In recent years...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-513
..., lateral variability and non-planar geometry. Statistical models of heterogeneity can be used to account for a variety of possibilities, so that Weibull distribution function is applied within the damage mechanics approach. In addition, difficulty and limitation of three-dimensional fracturing model...
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-10-363
... technique is used to represent a distribution of material properties. In general, the Weibull distribution function is applicable for modeling failure of rock [8]. Failure process of rock is complex, so a statistical model of heterogeneity can account for a variety of possibilities. However, it is difficult...
Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-098
... coupled LBM (lattice Boltzmann method) and DEM (discrete element method). LBM is a numerical simulation method which calculates the density distribution function of the virtual particle of fluid and solves the evolution equation of it. This method is suitable for the simulation of fluid...
Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-314
... of the fracture, and the hydraulic transmissivity of the fracture, can then be related to the aperture distribution function. The model is tested by inverting stress-strain data from a naturally-occurring fracture in granite to determine the aperture distribution function, and then using this aperture...
Proceedings Papers

Paper presented at the The 35th U.S. Symposium on Rock Mechanics (USRMS), June 5–7, 1995
Paper Number: ARMA-95-0689
... probability distribution Upstream Oil & Gas rock mass deformability goodman jack test result Rock Mech distribution function goodman jack method deformability reservoir geomechanics assessment mechanical property rock mass mass property Rock Mechanics, Daemen & SchutiZ (eds) ¸ 1995 Balkema...
Proceedings Papers

Paper presented at the The 31st U.S. Symposium on Rock Mechanics (USRMS), June 18–20, 1990
Paper Number: ARMA-90-0195
... Simulation roof fall reserves evaluation roof fall frequency Ground Control database accident frequency support density prediction fall frequency Artificial Intelligence distribution function probability roof failure prediction probabilistic technique information failure prediction failure...
Proceedings Papers

Paper presented at the The 30th U.S. Symposium on Rock Mechanics (USRMS), June 19–22, 1989
Paper Number: ARMA-89-0219
... in that distribution must be made so that the reliability of the prediction may be assessed. Bayesian reasoning is a format mathematical approach to providing both the distribution and the confidence measure. The expert's initial beliefs about the distribution function for a particular property at the site in question...
Proceedings Papers

Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-0391
... coefficient asperity-deformation model fluid modeling drilling fluid property Upstream Oil & Gas drilling fluid chemistry cylinder variation porous rock Gangi distribution function drilling fluid selection and formulation coefficient thermal expansion drilling fluid formulation Rock Mech...
Proceedings Papers

Paper presented at the The 28th U.S. Symposium on Rock Mechanics (USRMS), June 29–July 1, 1987
Paper Number: ARMA-87-0981
... resistance output signal face configuration distribution parameter penetration force distribution function determination laboratory experiment 28th US Symposium on Rock Mechanics / Tucson/29 June- 1 July 198 7 Investigation of the cutting force with different face configuration in quarries Moustafa...
Proceedings Papers

Paper presented at the The 27th U.S. Symposium on Rock Mechanics (USRMS), June 23–25, 1986
Paper Number: ARMA-86-0449
... & Gas Rock mechanics regression analysis muckpile fragmentation Reservoir Characterization delay interval delay time Anderson interaction Shothole size distribution msec distribution function size fraction particle size distribution BLASTING 1 Chapter 65 Effects of Delay Time...
Proceedings Papers

Paper presented at the The 21st U.S. Symposium on Rock Mechanics (USRMS), May 27–30, 1980
Paper Number: ARMA-80-0299
... dependent material responses, save for the time and material independent collapse modes which lead to material bulking. The collapse mode is described by a bulking parameter and a void volume distribution function that depends, in the example described here, upon the details of falling roof blocks...
Proceedings Papers

Paper presented at the The 17th U.S. Symposium on Rock Mechanics (USRMS), August 25–27, 1976
Paper Number: ARMA-76-0119
... paper) where k co is the crack permeability at zero applied pressure and m is a constant which depends upon the asperity distribution function on the crack face. In the above expression, simple power law distribution functions for the asperities have been assumed. The variation of the failure strength...
Proceedings Papers

Paper presented at the The 14th U.S. Symposium on Rock Mechanics (USRMS), June 11–14, 1972
Paper Number: ARMA-72-0329
... that the load exceeds the strength or that L - S > 0. Taking L- S = ?, the failure probability is the probability that ? > 0. criterion Kececioglu pillar Wisconsin strength safety factor Rock mechanics failure probability distribution function Standard Deviation strength distribution...

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