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Keywords: apparatus
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1688
.... In this study, a new experimental apparatus for hydration of mudstone under deep well drilling conditions (high temperature: ~200°C, high pressure: ~60MPa and flushing action of drilling fluid) is designed. Furthermore, continuous scratch method, which can easily achieve repeated tests using the same core...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1955
... and gas production, geothermal energy extraction, and geologic carbon storage. Here, we study the seismic behavior of fault gouge induced by fluid injection with a novel ring shear experimental apparatus. We designed this experimental apparatus to enable large shear strain, shear load stiffness control...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1919
... because, for efficient production, additional energy must be supplied to the reservoir to increase temperature beyond the pour point. In this article, a review of the standards to determine the pour point of crude oils or petroleum products is conducted in terms of their temperature ranges, main apparatus...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0248
... apparatus. Water was injected directly into the simulated fault through a 3 mm diameter hole drilled in the sample. During experiments, normal stress was held constant, while shear stress and water pressure varied to generate dynamic slip events. Fluid-induced slip events were found to have similar slip...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0372
... ABSTRACT: Over the years, a wide range of methods, equipment, and procedures have been developed to carry out direct shear tests on natural discontinuities. The authors recently designed and built a custom rock direct shear testing apparatus to overcome several limitations inherent...
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-2019-1882
... developed University of Adelaide Rockburst Test (UART) apparatus was used to replicate the stress conditions of rockburst at the laboratory scale. Additionally, acoustic emission (AE) responses of each test were recorded to enable qualitative and quantitative damage assessment of the phenomenon. To explain...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-040
..., including the design and fabrication of a new apparatus suited to reproduce the buckling failure at laboratory scale. B tests were conducted to calibrate and troubleshoot the apparatus, and several modifications were implemented. Moreover, a numerical model based on the two-dimensional discrete element...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0294
... ABSTRACT: A novel true triaxial testing apparatus was used that is equipped with flexible membranes pressurizing cylindrical core samples in the two orthogonal radial directions with independent stress magnitudes. We report the experimental investigation carried out to capture the true...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0867
... apparatus that can apply confining loads and internal “casing” pressures independently to a scaled-down (<50 mm) model of a complete well system. The apparatus is contained in an industrial X-Ray CT scanner, which is capable of collecting 3D scans while loads are applied to the scaled well system...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0129
... to determine the effect on decreasing fluid loss. All experiments were conducted using a standard API fluid loss apparatus. It was observed that increasing the nanoparticle concentration results in a significant decrease in fluid loss for both mechanically generated and chemically synthesized nanoparticles...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0070
... pressure apparatus reduction Contrera HPHT filtration drilling fluid chemistry Artificial Intelligence drilling fluid formulation graphite algorithm nanoparticle permeability fracture breakdown pressure equation filtration reduction society of petroleum engineers 1 1. INTRODUCTION...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-306
...) additives with a small amount of barite nanoparticles in a weighted water based drilling fluid were used to investigate the plugging capabilities of the mixtures. A high pressure LCM testing apparatus was used to evaluate the performance of three different water-based drilling fluids in sealing a slotted...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-255
... 3 ) which represent insitu conditions very close to reality. historical development Rock mechanics specimen Reservoir Characterization strength rigid platen application Upstream Oil & Gas platen triaxial testing machine apparatus loading reservoir geomechanics testing machine...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-800
... is reached [6]. machine learning hydraulic fracturing size effect flow in porous media Berea sandstone Artificial Intelligence Fluid Dynamics specimen geometry brittleness sandstone brittleness index size effect parameter fracture toughness beam height apparatus Reservoir...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-653
... Abstract: Understanding thermal properties is necessary for the development of both shallow and deep geothermal systems. Thermal properties can also be used for understanding the development and assessing weathering in a variety of materials. An experimental apparatus has been developed...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-736
... cementing may not prevent it. The severity of long-term methane leakage from wells is currently unknown. Thus, this research is investigating long-term leakage with special attention paid to the effect of pressure cycling from hydraulic fracturing on cement and near wellbore rock integrity. An apparatus has...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-433
... Abstract Recent experimental investigations of friction in rock demonstrate pronounced reduction in the apparent coefficient of friction at seismic slip rates (>0.1 m/s). Here we present the capabilities of a novel apparatus under development that can accommodate both double-direct...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-612
... Abstract In order to clarify the characteristics of hydraulic fracture in unconsolidated sands, we have been developing laboratory experimental apparatus to observe the hydraulic fracture behavior by the X-ray CT method. The apparatus should be designed satisfying conditions such as (i...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7505
... been applied to estimate the efficiency of fractured zone stimulation. The apparatus and operating procedure are first described together with data recording and processing. We show that SIMFIP tests generate and allow monitoring pluri-micrometer dilatant slip on pre-existing fractures, representative...

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