1-20 of 82
Keywords: variability
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1299
..., ballistic cloth, and other chemically inert products that have advantageous properties. Our approach is to determine the chemical and mineralogical characteristics of mine and mineral processing (mill) tailings, which will allow determination of melt composition and variability possible to achieve desired...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2113
... and orientation to material parameters and delta temperature (i.e., amount of cooling required to initiate a tensile fracture). Probability and sensitivity studies were conducted to analyze the impact of inherent variability in geologic materials on the predicted magnitudes of S Hmax , S hmin , and Θ (i.e...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1126
... criticality, has been proposed to represent the critical state of subsurface fractures. The fracture criticality is subjected to variability due to heterogeneous fracture attributes and rock properties. The statistics of fracture criticality could be applied to the probabilistic evaluation of fluid injection...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1627
... of the parameters provided by the ultra-fast optimization on selected stages. The two models can thus be calibrated simultaneously, with the same amount of redundancy and the same range of variability of these controlling parameters, without the penalty of impractical computational time. In this work, simulating 10...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0345
... to a variety of secondary models. hydraulic fracturing fracture intensity threshold fluid modeling Upstream Oil & Gas variation equation of state information voxelization null block fracture intensity variability boundary effect realization voxel Artificial Intelligence rock mass DFN...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0346
... examination. The relationship between these parameters and other related variables are then assessed to form an interaction matrix that represents the system. Previous studies have considered blast optimization using an RES approach. However, these approaches consider few details regarding the existing...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1672
... of the spatial variance on roof behavior. The stochastic model showed that the variability of cohesion and friction fields, especially the weak area, causes the failure to propagate in the immediate roof, which is different from the deterministic model. Additionally, comparing the principal stress magnitude...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1878
... a practically acceptable estimate of far-field stress increases with the increasing number of stress measurements. The required number of stress measurements for deriving an acceptable estimate varies with the geomechanical condition; in general, the larger the overall stress variability is, the more local...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2034
... and gross perforated interval coupled with different stimulation parameters such as the total pumped water and sand volumes in addition to the concentrations of different stimulation additives. The completion and stimulation parameters will be used as a predictor variable to the short- and long-term gas...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2077
... elastic properties representative of the fine-scale variability existing within the larger core sections. The integration of the plug-scale physical properties into the well-log space are then performed with the aid of the fine-scale variability measurements. Potential applications include interpretation...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1155
... ABSTRACT: Due to the inherent existence of inhomogeneity and discontinuity in rocks, the spatial variability can significantly affect the local material strength and the mechanical response. For accurate stability prediction of an engineered rock structure it is imperative to include...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1422
... strength reservoir geomechanics Rift Basin correlation MPa wave velocity clay content zakharova basin Upstream Oil & Gas Collin variability formation strength compressive strength p-wave velocity vp-uc relationship elastic wave velocity axial load lithology Newark basin rift basin...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-557
... ABSTRACT: We conduct combined numerical and mathematical analysis to investigate the variability of local stresses in heterogeneous fractured rocks subjected to different far-field stress loading conditions. A realistic fracture network is constructed based on a sandstone outcrop mapped...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-811
... ABSTRACT: When working in complex subsurface conditions, uncertainty exists due to natural variability in the rock. This is due to the nature of the rock's deposition or emplacement, or due to processes (e.g. tectonic or metamorphic) post-emplacement. Currently, geological models created...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0515
... learning Efficiency pore mean increase extraction algorithm topology optimization problem entire domain size distribution conductivity fraction Reservoir Characterization complex reservoir nakagaki preferred path pore size variability organism constructal theory edge radius Standard...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-1022
... with bad ground conditions in the stopes enhance support efficiency. Reinforced support crew training is also beneficial in implementing the improved support strategies. knowledge management support design elongate Thickness support strategy Reservoir Characterization variability stability...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0343
... ABSTRACT: Rock, unlike most engineered materials, possesses a large degree of inherent variability in physical characteristics. This creates a number of unique challenges when creating engineering works involving rock. When characterizing a rock, engineers must collect sufficient data so...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-777
... to the representative elementary volume (REV), Figure 2. reservoir geomechanics DFN model srm approach Reservoir Characterization Upstream Oil & Gas strength hydraulic fracturing Engineering complex reservoir fracture intensity variability synthetic rock mass SRM model rock mass strength rock...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-635
... fracturing strength composition vein mineral weak interface Artificial Intelligence calcite vein variability mineralogy mineralization interface structural geology Thickness organic matter constituent ash bed ash bed layer lithology well logging Upstream Oil & Gas mudstone strength...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-135
... the uncertainty associated with parameter estimations for these synthetic data. We show that the uncertainties depend not only on the level of variability, but also on the rock type being investigated. We discuss that the minimum number of required samples depends on the rock type, and should correspond to some...

Product(s) added to cart

Close Modal