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Keywords: formula
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-0020
... basis for the prevention and control of water in the working face. hydraulic fracturing metals & mining reservoir characterization thickness microseismic event wellbore design structural geology formula development height water-conducting fissure zone water-conducting fracture zone...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1941
..., due to great restrictions on drilling and coring operations. Some scholars use mortar to simulate formation rocks, however, their mechanical properties are quite different from those of formation rocks. In this paper, we present formula of high-performance mortar that can simulate rock mechanical...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1804
... the long-term safe and stable production of gas wells (Li et al., 2004; Ewy et al., 1999). reservoir geomechanics upstream oil & gas flow assurance sand production sand/solids control production pressure difference well sand production reservoir characterization sand control formula...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0029
... formula MPa empirical value mechanics relative error Drilling excess pore pressure foundation Modeling & Simulation criterion pressure coefficient prediction model formation fracture pressure ARMA 29 Control number of paper A prediction model for fracture pressure in shallow stratum...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0332
... fracturing stages. The 3D fracability indexes can be calculated and optimized. shale gas hydraulic fracturing complex reservoir Upstream Oil & Gas fracture toughness Reservoir Characterization structural geology strength experiment formula brittleness index natural fracture evaluation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1918
... by (Equation) where summation over repeated indices is assumed here and in the following. The tensorial B in principle relates all stress components to the induced pore pressure. reservoir geomechanics formula implication transverse isotropy Reservoir Characterization elastic anisotropy pore...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-344
..., formation pressure, wellbore pressure and tubing length. Artificial Intelligence Engineering different condition perforation condition Upstream Oil & Gas Modeling & Simulation formula initial pressure peak pressure perforation interface Completion Installation and Operations...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0363
... formula ccnbd shale disc Rock mechanics hydraulic fracturing fracture toughness isrm method Wang gas shale shale disc MPa shale sample international journal specimen mode-i fracture toughness Mining Science shale experimental study tensile strength toughness mechanics 1 1...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0942
... behavior. Geomechanical properties were calculated using existing correlations and relation. Those properties included the Young’s modulus, Poisson’s ratio, tensile strength, UCS, and pore pressure. Upstream Oil & Gas well logging correlation calculation log analysis formula Reservoir...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-1017
... for Rock Mechanics (ISRM). In contrast to the previously published linear and exponential relations, our empirical relation exhibits dimensional unity between the two sides of the empirical formula, which is preferable in terms of both physical meaning and mathematical form. Furthermore, the previously...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-210
...] studied the effect of loading process on permeability of coal particle with size distribution. Reservoir Characterization inrush Rock mechanics experimental study Engineering initial porosity water-sand seepage characteristic seepage characteristic mining Upstream Oil & Gas formula...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-467
... and dynamic load [4]. The vibration force can reflect the irregularity, additional dynamic load and corrugation of rail surface effect. Its mathematical expression is as follow: tptptpptF 3322110 sinsinsin)( (1) In the formula, p0 is static wheel load and p1 p2 p3 are respectively certain typical values...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-497
... would have seemed to be originally reasonable (like in this paper). The simulation undertaken utilizes observations of road width, mining height and mining depth for both sections. A sensitivity analysis was carried out in order to select the most appropriate formula for solving the problem between...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-501
... measures implemented. The mine adopted a Voussior Arch designed supported bord span of 12m at implementation phase. The adopted design was supported by the Hedley and Grant formula [1]. The designed pillars would support the weight of the overburden within the pillar tributary area. The mine is currently...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-817
... oil & gas safety natural variability lunder pillar strength strength empirical method cave mining vertical stress hard rock pillar rock pillar undercut front metals & mining reservoir characterization pillar stability reservoir geomechanics formula geometry comparative...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7443
... hydraulic fracturing pore pressure stability diagram Reservoir Characterization plasticity pore stress state fracture closure fracture breakdown Upstream Oil & Gas formula horizontal stress situ stress plane breakout equation tectonic strain fracture principal stress 1. INTRODUCTION...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-435
... & Gas formula argument fluid modeling equation of state compressibility natural fracture conclusion reservoir geomechanics net pressure expression fracture compliance compressibility argument fracture propagation Lacazette Wellbore Design Raaen pressure drop fracture radial fracture...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-302
... and on the value of crack width size on its outline and cross-sectional area. fracturing materials Upstream Oil & Gas formula Reservoir Characterization proppant stress state estimation Deformational Characteristic reservoir geomechanics fracturing fluid borehole outline state estimation...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-326
... values from the empirical formulas used in ARMPS and LaModel. It seems reasonable that the overburden geology, depth, extraction panel width, and mining height should have a significant effect on the extent and magnitude of the abutment load. However, the current empirical formulas do not incorporate all...
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-10-118
... for predicting loads on the support structures. Zaslavskiy recommended using formula (2) for junction as well as for parallel openings. Maximum displacement according to formula (2) is at B/D = 0.57. Zaslavskiy explains this effect by failure of the pillar between openings in vicinity of the junction center...

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