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Keywords: mechanical property
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1707
... 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 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 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0316
... but no consensus on the determination or on its influence parameters exists. Thus, an experimental study was developed and new insights on the apparent cohesion influence parameters (roughness, interlocking, material mechanical properties, contact type and normal load) were found. 64 direct shear tests were...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0011
... Modeling & Simulation reservoir depletion mechanical property reaction acidizing-induced wormhole dissolution acidizing wellbore porosity wormhole region reservoir depletion process vertical normal stress 1. INTRODUCTION Matrix acidizing is a widely-used reservoir stimulation technique...
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...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0344
... fracturing, which relies on water-based fluids. hydraulic fracturing nitrogen brittleness ratio complex reservoir mechanical property core sample shale gas experiment Poisson Upstream Oil & Gas USA rock mechanical property injection p-wave velocity fracture liquid nitrogen thermal...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0471
... work encompasses mechanical test, engineering analogy, and numerical simulation, which are considered major approaches for studying rock engineering problems. The obtained findings, conclusions, and recommendations are hoped to deepen the understanding of mechanical properties of fractured rocks...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0473
... used to control sand production in the field. Besides these methods, chemical injection has also been suggested to be an alternative method to control sand production in unconsolidated sandstones since this can improve the mechanical properties of the rock formation through increasing the bonding...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0478
... of the mechanical properties in mechanism of failure on the fracture propagation in unconsolidated sandstones. The samples were prepared with different scales of quartz sand, illite, montmorillonite, and water were mixed according to the depth of typical unconsolidated sandstone reservoirs in the Bohai-China...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1545
... ABSTRACT: Series of experiments were conducted on core samples from three prominent unconventional basins in the United States to investigate the effect of temperature and confining pressure on rock mechanical properties of Barnett, Wolfcamp, and Eagleford shales. Eleven unsaturated outcrop...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1572
... to calculate the anisotropic mechanical properties of the shale. A drilling campaign has encountered several exceptional shales plays in Colombia in the past few years. Geomechanical and geochemical characterization of these shales have been used to provide the required information for the designing of optimal...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1662
... ABSTRACT: During the drilling operations, the fine drilled cuttings are mixed with the drilling fluid. Therefore, the properties of the drilling fluid and the filter cake are affected. In this paper, the effect of the variation in the mechanical properties for the drilled cuttings...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1585
... as the control condition, the mechanical properties of sandstone and the macroscopic failure characteristics were systematically studied in this paper. The study results showed that the uniaxial compressive strength and tensile strength of sandstone samples generally decreased with the increase of freeze-thaw...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1605
... ABSTRACT: In this work, a new micro-creep model based on a power function form is proposed to describe the creep mechanical properties of salt rock. This model is embedded into particle flow code (PFC) by Fish scripting language. The power function weakening form is introduced to describe...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1666
... stresses. INTRODUCTION tight gas cement block sample shale gas multistage fracturing complex reservoir scioto sandstone sample chemically-induced pressure pulse mechanical property hydraulic fracturing Upstream Oil & Gas reactive chemical presentation wave velocity chemical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1556
...-mechanical response at the grain size, deepening our understanding of the mechanical properties of salt rocks in underground gas storage during the static load. natural gas storage microcrack particle Reservoir Characterization Fluid Dynamics Simulation Upstream Oil & Gas heterogeneity...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1843
... ABSTRACT: In crushed coal seams, artificial fractures cannot effectively extend during hydraulic fracturing. In this paper, a method of temporarily enhancing the mechanical properties of crushed coal seams by freezing is proposed, which can make the hydraulic fracture extend significantly...

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