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Keywords: mechanical property
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Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0440
... ABSTRACT: In this study, we investigated the chemo-mechanical properties of cuttings contaminated with oil-based mud (OBM) and its various treatments. Rock fragments are obtained from Eagle Ford and Marcellus formations, which are then cut into cuttings with sizes ranging from 4 mm to 8 mm...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0487
... prediction, and the proposed framework yields R 2 = 0.93 for the test set. Although the study is needed more comprehensively, our results shows that machine learning methods such as linear regression or Gaussian process regression can be used to accurately estimate mechanical properties with a proper number...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0781
... ABSTRACT: Knowledge of mechanical properties of subsurface at elevated temperature is crucial to understand a range of processes in the earth’s crust and in building geomechanical models to assist in operating geothermal systems, nuclear waste repository, CO 2 sequestration and hydrocarbon...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-2374
.... These differences have implications on the prediction of rock mechanical properties and fracture pressure gradient estimation. This study shows an overall good fit to a relationship existing to derive a useful correlation between PLTB and PDTB tensile strength measurements that can be used in unconventional shale...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0562
... ABSTRACT: The spatial distribution of gravels is of great significance to the mechanical properties of the conglomerate. The effect of the spatial distribution of gravels on the mechanical properties of rocks is still lacking in knowledge and understanding. Five different distributions...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1311
... were conducted to obtain the basic properties of the synthetic samples. The results show that the cores prepared by the current method display relatively good porosity and permeability. Mechanical properties obtained through uniaxial and triaxial tests, tensile tests, and thick-walled cylinder tests...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1707
... ABSTRACT: Various studies have been done to develop dynamic rock mechanical properties (RMP) and rock strength of shale gas to estimate high accuracy value prediction when no core is available. However, previous studies did not consider the overpressure, mineralogy, and shale composition...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1981
... wellbore integrity is one of the key challenges. Changes in cement mineralogy and associated mechanical properties may critically affect the integrity of high temperature wells. In this study, the relation between changes in mineralogy and mechanical properties of API class G cement with 40% silica flour...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1965
... Dynamics variation uniaxial compressive strength high temperature flow in porous media geothermal reservoir air cooling mechanical property granite permeability 1. INTRODUCTION With the continuous development of conventional oil and gas resources, especially the large-scale exploitation...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1983
... and in mechanical properties of the rock samples. Micro-computed tomography (micro-CT) is concurrently used for analyzing the spatial distribution and textural alteration of constituents of shales after reaction. Results have revealed the existence of three regions of starkly different behaviors after CO 2...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2044
... saturation conditions especially for those samples characterized by an extremely variable distribution of cement. Upstream Oil & Gas andriani structural geology unit weight Reservoir Characterization strength uc value mechanical property saturation soft carbonate rock tension strength...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2125
... surface unpropped conductivity surface roughness concentration closure stress mechanical property high closure stress perpendicular 1. INTRODUCTION In shale gas fracturing, fracture conductivity depends not only on proppant parameters, but also on fracture surface features. There is a complex...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2174
... learning correlation Artificial Intelligence local correlation western desert Poisson mechanical earth model log analysis Upstream Oil & Gas rock mechanics lab mechanical property unconfined compressive strength artificial neural network moduli case study 1. INTRODUCTION To maximize...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2844
... strength mechanical property Symposium cms reservoir geomechanics US government proceedings strength envelope Strength Reduction coal mass model Reservoir Characterization Upstream Oil & Gas stability coal material coal rib stability procedure study site coal rib deformation parting...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2117
... ABSTRACT: To understand the effect of cold water injection on the mechanical properties and brittleness of rock, a series of mechanical tests were performed on granite samples. Firstly, granite samples were slowly heated to a series of target temperatures and then rapidly cooled down using...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0144
... and earth stresses. Macro and Microstructure of shale rocks are dominated by distinct laminated layering, which causes the anisotropy in petrophysical and mechanical properties. Due to this heterogeneity, when subjected to a load, both plastic and elastic deformations manifest simultaneously at different...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0299
... ABSTRACT: Cubic saw-tooth specimens are made by using cement mortar filled with material. Considering the effects of different factors stress on the mechanical properties of rock, three factors are considered in this paper: three kinds of filling degrees (0,0.5,1), three kinds of asperity...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0268
... ABSTRACT: Deep carbonate rocks generally belong to dense sedimentary rocks, but the cracks and holes of different scales in the formation will affect the mechanical properties. In the borehole stability analysis of drilling and completion engineering of deep carbonate reservoir...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0340
... formation might suffer interface bonding failure. Research findings would be of theoretical and practical value for the prevention of sustained casing pressure in shale gas well. shale gas hydraulic fracturing tensile failure Engineering mechanical property integrity compression Upstream Oil...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0322
... on HF stimulation results. NFNs are characterized by geometric properties (including spatial distribution, length, and height) and mechanical properties (including tensile strength, cohesive strength, and shear stiffness). This paper explicitly represents NFNs in a validated, state-of-the-art geo...

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