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Keywords: erosion
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1162
... ABSTRACT: This study developed the fluid pipe element that can consider fluid distribution, perforation erosion, and temporary plugging effects based on the Finite Element Analysis. This element can be easily coupled with finite element models to achieve multi-fracture propagation simulation...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1390
... ABSTRACT: Hydra-jet fracturing technology is able to stimulation in horizontal wells of shale gas. However, the erosion effect of abrasive slurry is quite different in various shales. The experiment of abrasive jet with high pressure was performed on three types of shales, including siliceous...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1449
... mass production. This nebulous sand production (a) the poro-mechanical response of the rock sample and coefficient is a strong function of plastic shear strain and (b) the erosional response of the rock fabric. The first it expresses the strength of erosion however erroneously physical process can...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0224
... ABSTRACT: Instability in geotechnical structures such as dikes or earth dams may be induced by internal erosion. In this phenomenon, finer soil particles are plucked off from the solid matrix by seepage flow and transported through the pore domain over time. Due to the loss of a part...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0399
... ABSTRACT: Beachrock is a sedimentary formation where coastal sediments have been cemented by calcium carbonate polymorphs. Beachrocks have a positive impact on beaches vulnerable to erosion, as they are capable of armouring the beaches from strong waves. This study was aimed at building...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0406
... ABSTRACT: Surface instability of residual soil slope due to erosion is one of the widespread issues all over the world. Bio-cementation is a novel soil improvement method, wherein urease-producing bacteria or urease enzyme can be used to bind sand particles through calcite formation...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-961
... isotropic tests. The sand production under anisotropic stresses is analyzed numerically using an hydro mechanical erosion model and the results show the effect of stress anisotropy on sand mass and rate. Reservoir Characterization sand production external stress Upstream Oil & Gas Papamicho...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0414
... changes the rock properties causing instabilities such as swelling of shale rock. Fluid flow/rock interaction in which the fluid flow through the borehole or discontinuities exerts drag or lift forces on the formation and causes erosion. One of the challenges of drilling petroleum and mineral...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0216
... acquired by the Scanning Electron Microscope (SEM) and Computed Tomography (CT) techniques. Results show that there are big difference of fragmentation behaviors between shale and sandstone. The efficiency of shale waterjet drilling is ultralow, which the erosion rate and the ultimate drilling depth cannot...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-335
... experimentally or numerically due to the complexity of the governing equations. In our previous work, we introduced an erosion model which is built upon the physics (fluid-solid poro-mechanical coupling) usually incorporated in erosion models for the prediction of sand production. In this work we briefly outline...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-829
... Abstract The potential and extent of erosion due to plunging jets of water from flows overtopping dams need to be evaluated for many dams. Hydraulic scouring is a phenomenon that may cause erosion of material downstream, potentially causing dam failure. Methods to assess the effects...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-700
... Abstract A series of flume experiments was performed as a part of a comprehensive study of rock erosion in spillway channels. The flume provided a controlled environment in which different flow rates and block configurations could be examined. The results of the experiments suggest...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7387
... that the evolution of ID cutting face is characterized by different patterns or wear mechanisms, depending on the depth of cut imposed. At shallow depth of cuts, the wear is predominantly dominated by diamond polishing and erosion of the binder, and at higher depth of cuts, the wear is controlled by diamond...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7434
... and immobile phases where these phases change spatially and evolve over time that leads to development of erosional channels in radial patterns depending on injection rates, viscosity, magnitude of in situ stresses and rock properties. The model accounts for both particle releasing and suspension deposition...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-544
... Abstract The erodibility index method proposed by Annandale was a semi-empirical methodology to measure the resistance of rock under a range of hydraulic conditions. Two modifications for determining the erodibility index were made to improve the evaluation of bedrock erosion based...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-314
... ABSTRACT: This paper presents a model describing the process of sand production to predict the stability of wellbores and perforation tunnels as well as mass of sand produced. The sand production model incorporates formation failure and flow-driven sand erosion mechanisms. It is shown...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-482
... results. The rate of produced sand was dependent on the hole size only for some types of rock. This dependency is explained on the basis of the cavity geometry and area of potential erosion for the different sandstone classes. For brittle sandstones showing slit-like erosion pathways, hole size dependency...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-150
... stress measurement erosion stress Gradient heterogeneity tectonic component implication stress field sufficient match complexity topography 1. INTRODUCTION Historically, stress measurements have been expensive and difficult, so low numbers of tests and unexplained variability has been...
Proceedings Papers

Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-1124
... and displacements as appropriate to the regional and local geology. Gravity loading (burial) and episodes of erosion and/or tectonic strain are applied to the model sequentially in a series of modeling steps that attempt to mimic the geologic history. The geologic processes are represented by loads...
Proceedings Papers

Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-906
... ABSTRACT: This paper extends earlier work on sand production modeling in any type of light and heavy oil reservoirs within an unconsolidated and/or weakly consolidated formation. A fully coupled reservoir-erosion-geomechanics model is presented to predict volumetric sand production and cavity...

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