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Keywords: slippage
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2079
... ABSTRACT: Casing deformation during hydraulic fracturing process dramatically decreases the number of fracturing stages and impacts the efficient exploitation of shale gas. As shear deformation is the main type of casing deformation in shale gas wells, reactivation and slippage of dominant...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0279
... ABSTRACT: Accurate modeling of height growth in hydraulic fracture models is always a challenge, especially in laminated rocks. In this paper, we study fracture height growth in layered formations by accounting for the effect of shear slippage of crossed interfaces. The boundary of the shear...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1870
... interaction with emphasis on slippage of a discontinuity surface. Injection pressure, stress applied, and the sample deformation are monitored during the test. Acoustic Emission (AE) technology is employed to record the AE signals generated during fracture initiation, propagation and during the sliding...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0213
... the contact model. This model applies to rockfall simulation to delimit the area where possible falling rock may exist. Upstream Oil & Gas restitution proceedings Nishimura slippage input parameter coefficient rockfall energy ratio three-dimensional numerical model incoming angle slope...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-589
... Abstract: We use here a fully hydraulically-mechanical coupled, 3-D model (Damjanac and Cundall, 2014) to simulate fault reactivation during a hydraulic fracturing treatment. Synthetic seismicity from the model helps quantify seismic energy released by the slippage on the fault. The model...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7158
... that the tangential component of the coefficient restitution Ret is a roughly constant when the incoming angle is small and then increases with the increase in the slope angle. This nature of impact is explained by ‘sticking’ behavior and the transition to slippage. In the transition zone, the ratio of Er/Ev...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-294
... planes. We present a case study from the Monterey Formation in California, wherein a weak layer overlays the target reservoir and the buildup-section of horizontal wells started in this weak layer. The developed approach is used to show that the weak layer slippage is the main cause of severe drilling...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-488
... zones, but may produce a lower boundary of strength properties for robust fault reactivation risk analyses. The individual results matched the expected stress-strain behavior pattern for a frictional material under shear stresses and the final residual strength envelope was consistent. During slippage...
Proceedings Papers

Paper presented at the Vail Rocks 1999, The 37th U.S. Symposium on Rock Mechanics (USRMS), June 7–9, 1999
Paper Number: ARMA-99-0625
... further into the rock under the induced radial force exerted by the tube. Fii h, the indentation of the studs into the rock increases the shear resistance ofthe rock/grout contact. Sixth, when the grouted tube is subjected to a pull-out load, the resistance to slippage along the metal tube/grout contact...
Proceedings Papers

Paper presented at the The 33rd U.S. Symposium on Rock Mechanics (USRMS), June 3–5, 1992
Paper Number: ARMA-92-0273
... published in the literature. The analysis results demonstrate that flexure above a compacting reservoir generates shear stresses in the overburden that can cause horizontal shear failures and slippage along weak layers such as shale beds. For the magnitudes of subsidence observed at Wilmington and Ekofisk...
Proceedings Papers

Paper presented at the The 29th U.S. Symposium on Rock Mechanics (USRMS), June 13–15, 1988
Paper Number: ARMA-88-0479
... to fluid injections. The initial conditions in the reservoir are such that dilatant slip is triggered soon after the injections be- gin. The study shows that the peak response (peak fluid pressure, peak joint opening, peak Joint aperture, and peak slippage) is less intense for lower pumping rates than...

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