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Proceedings Papers

Fracture Assessment From Well-Centered and Reservoir Scale Coupled Geomechanical Models

J. M. Segura, R. C. Bezerra de Melo, A. Martínez, J. Alvarellos, M. Morón, S. Fontenla, E. Vargas, C. Rojas, J. I. Arregui
Paper presented at the International Geomechanics Symposium, November 7–10, 2022
Paper Number: ARMA-IGS-2022-148
https://doi.org/10.56952/IGS-2022-148
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View Paper titled, Fracture Assessment From Well-Centered and Reservoir Scale Coupled Geomechanical Models
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Proceedings Papers

A Novel Workflow to Invert Broadband Seismic Data: A Case Study from Onshore Fields in Abu Dhabi

M. Afia, A. Mukherjee, A. Glushchenko, R. Elsayed, M. Paydayesh, K. Havelia, J. Ahmed, J. E. Vargas, Y. P. Utami, A. Elila, S. O. Al-Naqbi
Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207986-MS
https://doi.org/10.2118/207986-MS
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View Paper titled, A Novel Workflow to Invert Broadband Seismic Data: A Case Study from Onshore Fields in Abu Dhabi
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Proceedings Papers

Landslide Occurrences in China During Wenchuan Earthquake

F. Fernández, E. Vargas, Jr., A. Muller, R. Q. Velloso, R. L. Sousa, L. Ribeiro e Sousa, C. Sousa Oliveira
Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1153
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View Paper titled, Landslide Occurrences in China During Wenchuan Earthquake
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Proceedings Papers

Multiple Intersecting Cohesive Discontinuities in 3D Reservoir Geomechanics

K. C. Das, S. S. Sandha, I. Carol, P. E. Vargas, N. A. González, E. Rodrigues, J. M. Segura, M. R. Lakshmikantha, U. Mello
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-553
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View Paper titled, Multiple Intersecting Cohesive Discontinuities in 3D Reservoir Geomechanics
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Proceedings Papers

Coupling a Fluid Flow Simulation with a Geomechanical Model of a Fractured Reservoir

J. M. Segura, C. M. Paz, M. de Bayser, J. Zhang, P. W. Bryant, N. A. González, E. Rodrigues, P. E. Vargas, I. Carol, M. R. Lakshmikantha, K. C. Das, S. S. Sandha, R. Cerqueira, U. Mello
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-520
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View Paper titled, Coupling a Fluid Flow Simulation with a Geomechanical Model of a Fractured Reservoir
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Proceedings Papers

Fault Stability Assessment for Well Planning: A Case Study Related to Salt Structures

J. M. Segura, A. Mattos da Cruz, G. Stachlewski, J. Alvarellos, P. E. Vargas, M. R. Lakshmikantha
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-518
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View Paper titled, Fault Stability Assessment for Well Planning: A Case Study Related to Salt Structures
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Proceedings Papers

Reducing the Uncertainty in Tight Rock Porosity Estimation by Combining Different Methods-Bakken Formation Case

Pablo E. Vargas, Jun He, Peng Pei, Xiao Ni
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-537
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View Paper titled, Reducing the Uncertainty in Tight Rock Porosity Estimation by Combining Different Methods-Bakken Formation Case
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Proceedings Papers

Experimental Evaluation of passive-Vibration Assisted Rotary Drilling (p-VARD) tool to Enhance Drilling Performance

Pablo E. Vargas, A. N. Abugharara, J. Molgaard, S. D. Butt
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-492
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View Paper titled, Experimental Evaluation of passive-Vibration Assisted Rotary Drilling (p-VARD) tool to Enhance Drilling Performance
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Proceedings Papers

Discrete Modeling of Multiple Discontinuities in Rock Mass using XFEM

Kamal C. Das, R. Ausas, Ignacio Carol, E. Rodrigues, Sandeep S. Sandha, Pablo E. Vargas, Nubia A. González, S. S. SeguraSerra, M. R. Lakshmikantha, U. Mello
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-464
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View Paper titled, Discrete Modeling of Multiple Discontinuities in Rock Mass using XFEM
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Proceedings Papers

First Deployment of Oriented Perforation in Lunskoye

V. Lyapunova, O. Komolafe, E. Vargas
Paper presented at the SPE Russian Oil and Gas Exploration and Production Technical Conference and Exhibition, October 16–18, 2012
Paper Number: SPE-160763-MS
https://doi.org/10.2118/160763-MS
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Proceedings Papers

Successful Application of Foamed Acid Stimulation of Severely Damaged Perforations in a Horizontal Intelligent Well

W. Ruksanor, J. Webers, E. Vargas, R. Gdanski, S. Vickery
Paper presented at the SPE Russian Oil and Gas Exploration and Production Technical Conference and Exhibition, October 16–18, 2012
Paper Number: SPE-160762-MS
https://doi.org/10.2118/160762-MS
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View Paper titled, Successful Application of Foamed Acid Stimulation of Severely Damaged Perforations in a Horizontal Intelligent Well
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Journal Articles

Prediction of Slug-to-Annular Flow Pattern Transition (STA) for Reducing the Risk of Gas-Lift Instabilities and Effective Gas/Liquid Transport From Low-Pressure Reservoirs

P. R. Toma, E. Vargas, E. Kuru
Journal: SPE Production & Operations
Publisher: Society of Petroleum Engineers (SPE)
SPE Prod & Oper 22 (03): 339–346.
Paper Number: SPE-100615-PA
https://doi.org/10.2118/100615-PA
Published: 19 August 2007
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View article titled, Prediction of Slug-to-Annular Flow Pattern Transition (STA) for Reducing the Risk of Gas-Lift Instabilities and Effective Gas/Liquid Transport From Low-Pressure Reservoirs
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Proceedings Papers

Prediction of Slug-to-Annular Flow Pattern Transition (SAT) for Reducing the Risk of Gas Lift Instabilities and Effective Gas/Liquid Transport From Low-Pressure Reservoirs

P. Toma, E. Vargas, E. Kuru
Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100615-MS
https://doi.org/10.2118/100615-MS
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View Paper titled, Prediction of Slug-to-Annular Flow Pattern Transition (SAT) for Reducing the Risk of Gas Lift Instabilities and Effective Gas/Liquid Transport From Low-Pressure Reservoirs
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Proceedings Papers

Considerations On the Computer Simulation of Direct Shear Tests On Fractured Media Through a Cosserat Continuum

R. Figueiredo, E. Vargas
Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-079
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View Paper titled, Considerations On the Computer Simulation of Direct Shear Tests On Fractured Media Through a Cosserat Continuum
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Proceedings Papers

Numerical Increment Manifold Method of Damage For Rock Mass

Wang Zhiyin, E. Vargas
Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-080
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Proceedings Papers

A Self-Adaptive Timestep Control For the Viscoplastic-Viscoelastic Analysis In Finite Elements of the Hydromechanical Coupling In Fractured Rock Masses

I.C. Duarte, L.E. Vaz, E. Vargas, Jr.
Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-013
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View Paper titled, A Self-Adaptive Timestep Control For the Viscoplastic-Viscoelastic Analysis In Finite Elements of the Hydromechanical Coupling In Fractured Rock Masses
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Proceedings Papers

Keynote Lecture: Considerations On Alternatives For the Numerical Modelling of Fractured Rock Masses

E. Vargas, Jr., L.E. Vaz
Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-122
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View Paper titled, Keynote Lecture: Considerations On Alternatives For the Numerical Modelling of Fractured Rock Masses
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Proceedings Papers

Drilling Hard and Abrasive Formations with PDC Bits

J. E. Vargas
Paper presented at the SPE Latin America Petroleum Engineering Conference, March 8–11, 1992
Paper Number: SPE-23713-MS
https://doi.org/10.2118/23713-MS
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Proceedings Papers

Studies of Erosion Processes Downstream of Concrete Spillways

S. Brito, N. Infanti, Jr., E. Vargas, Jr., L.C. Souza Pinto
Paper presented at the 7th ISRM Congress, September 16–20, 1991
Paper Number: ISRM-7CONGRESS-1991-247
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Proceedings Papers

Considerations On the Properties And Modeling of the Deformational Behaviour of Weak Rock Masses

E. Vargas, L. Dobereiner, J.P. Millan
Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-242
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