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Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0408
... are usually interpreted manually with associated low efficiency and high cost, and to overcome these deficiencies here we propose a high performance combined de-noising procedure based on the median filter and deep learning techniques. We investigate the use of a convolutional neural network (CNN) method...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0502
.... Eq. (5), involves the measurement of two other poroelastic coefficients K and (Equation). upstream oil & gas reservoir characterization increment flow in porous media biot coefficient fluid dynamics granite coefficient specimen measurement journal procedure dp 0 reservoir...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0464
... an experimental procedure that consists of: (1) compaction of organic-rich grains/powder under oedometric conditions, (2) measurement of poromechanical properties in the absence of adsorption effects using helium in a triaxial cell through independent changes of confining pressure and pore pressure, (3...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0217
... reservoir geomechanics rocksalt aydan impression creep test impression creep experiment rock engineering procedure ARMA 22 0217 Utilization of Impression Creep Tests as Index Testing Technique in Rock Mechanics and Rock Engineering Aydan, Ö. and Ito, T. University of the Ryukyus, Okinawa, Japan...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0153
... testing procedures were adapted depending on the permeability of the rock sample. Steady-state method was deployed for medium to high permeability samples, while complex transient (subjecting a sample to a pressure pulse and monitor the resulted pressure decay) methods were deployed to estimate...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0095
... efficiently. natural gas storage specimen la-thi-ga fracture reservoir characterization displacement germany thermal cooling hydraulic fracturing reduction mpa fv 21 upstream oil & gas reservoir geomechanics cavern sterloh procedure runtime hannover withdrawal steel plug...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0286
... of overcoring by numerical elastic simulation. The principle of superposition is used to derive the responses for any set of parameters from a limited number of basic models and thus allows to limit the total number of model runs. Such approach allows for a systematic inversion procedure to be applied...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0625
... conditions. Seismic risk at the LaRonde mine is currently managed through a combination of control measures, including a ground-control-driven mining sequence and level design, dynamic ground support systems, and procedures to limit workforce exposure. These control measures have evolved over time and been...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1769
.... A machine learning framework based on Gaussian process regression (GPR) was chosen in the development of this procedure because it can assess uncertainty of the cement bond through estimation of error and confidence interval. GPR also require less training samples than conventional machine learning...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1210
... ABSTRACT: Compaction methodology and quality control procedures developed to meet stringent functional performance requirements of rock fill embankments are presented. The need for an innovative compaction methodology was necessitated by a multitude of factors; a) the geological variability...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1919
..., and summary of test methods. A new test apparatus and procedures for oil sand bitumen are proposed for the determination of pour points at varying temperatures and pressures. A new concept, named "generalized pour point", is defined to distinguish the bitumen liquidity under high pressure, and a new...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1123
... estimation. The experimental design procedure exposed in this work allows for obtaining this essential information. enhanced recovery upstream oil & gas displacement fractured rock flow in porous media engineering naturally fractured reservoir procedure core analysis waterflooding...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1630
... and their source characteristics as well as their effect on rock engineering structures. In this study, despite some difficulties, the author would propose a general procedure to simulate shear loads in direct shear tests of discontinuities and interfaces due to ground motions caused by earthquakes. Furthermore...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1606
... that of the naturally fractured core. The proposed procedures can be applied to identify the FFD mechanism of other tight and shale formation and provide insightful fundamental data for HFF optimization. Upstream Oil & Gas simulated formation water flow in porous media apparatus fractured core Fluid...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0256
... ABSTRACT: This paper details back analysis conducted at two mines with the purpose of informing exposure management procedures to manage seismic risk. The analysis was intended to help each mine determine which blasts should have an exclusion, what the area of exclusion should be and when re...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0438
... ratio of each rock layer and the target responses were the field measurements of horizontal and vertical total stress profiles and the maximum surface subsidence. GP provided functions relating each response to the elastic properties. An optimization procedure using the interior-point algorithm...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0427
... for the distribution of in-situ stresses by automatically adjusting the fields of geomechanical properties as well as boundary conditions with both stochastic and optimization algorithms. This new approach utilizes a sequentially two-step matching procedure taking the difference between calculated stresses...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1553
... extensometer sandstone procedure panel face study site intersection proceedings international conference pillar response pillar abutment pillar gateroad longwall face Morgantown longwall panel 1. INTRODUCTION The longwall mining method continues to lead underground coal mining production...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2844
... simulate the deformation and loading behaviors of coal ribs. The reduction in the strength of the coal specimen as its size increases is considered by introducing a scale parameter called Coal Mass Scale (CMS). In this paper, a procedure to calculate the factor of safety (FOS) of coal ribs was proposed...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-756
... optical fiber lead-wire lc connector spile borehole support member spile member grout installation optical sensor strain distribution sensor protection piece instrumented spile member procedure excavation tunnel 1. INTRODUCTION The management of increased transportation needs in growing...

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