Browsing by Author "Lakshmikantha, Ramasesha Mookanahallipatna"

Now showing items 1-9 of 9

    • Avoiding fracture instability in wedge splitting tests by means of numerical simulations 

      Liaudat, Joaquín; Garolera Vinent, Daniel; Martínez Estévez, Ariadna; Carol, Ignacio; Lakshmikantha, Ramasesha Mookanahallipatna; Alvarellos Iglesias, José (2017)
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      In this paper, unstable fracture propagation obtained in a in-house performed experimentalWedge Splitting Test (WST) is simulated by means of the FEM and fracture- based zero-thickness interface elements. In order to obtain ...

    • Comparison of discrete and equivalent continuum approaches to simulate the mechanical behavior of jointed rock masses 

      Gonzalez, Nubia Aurora; Vargas, P.E.; Carol, Ignacio; Das, K. C.; Sandha, S.S.; Rodrigues, E.; Mello,, U.; Segura Segarra, José María; Lakshmikantha, Ramasesha Mookanahallipatna (CRC Press, 2016)
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      Modeling of rock masses is of major importance to assess the Geomechanical behaviour of oil &gas reservoirs, especially for fractured tight reservoirs. The presence of discontinuities will significantly influence the general ...

    • Coupled H-M fracture interaction using FEM with zero-thickness interface elements 

      Garolera Vinent, Daniel; Segura Serra, Josep Maria; Carol, Ignacio; Lakshmikantha, Ramasesha Mookanahallipatna; Alvarellos Iglesias, José (2017)
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      Open Access
      Massive treatments of hydraulic fracturing is a procedure employed for low permeability reservoirs stimulation. This technique consists in generating a series of parallel spaced fractures parallel (multi-stage fracturing). ...

    • Coupling a fluid flow simulation with a geomechanical model of a fractured reservoir 

      Segura Segarra, José María; Paz, C.M.; de Bayser, M.; Zhang, J.; Bryant, P.W.; Gonzalez, Nubia Aurora; Rodrigues, E.; Vargas, P.E.; Carol, Ignacio; Lakshmikantha, Ramasesha Mookanahallipatna; Das, K. C.; Sandha, S.S.; Cerqueira, R.; Mello,, U. (OnePetro, 2013)
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      Improving the reliability of integrated reservoir development planning and addressing subsidence, fault reactivation and other environmental impacts, requires increasingly sophisticated geomechanical models, especially in ...

    • Discrete modeling of multiple discontinuities in rock mass using XFEM 

      Das, Kamal C.; Ausas, Roberto Federico; Carol, Ignacio; Rodrigues, Eduardo; Sandeep, Sandra; Vargas, P. E.; Gonzalez, Nubia Aurora; Segura, Josep María; Lakshmikantha, Ramasesha Mookanahallipatna; Mello,, U. (OnePetro, 2017)
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      Modeling of discontinuities (fractures and fault surfaces) is of major importance to assess the geomechanical behavior of oil and gas reservoirs, especially for tight and unconventional reservoirs. Numerical analysis of ...

    • Efem vs. XFEM: a comparative study for modeling strong discontinuity in geomechanics 

      Das, Kamal C.; Ausas, Roberto Federico; Segura Segarra, José María; Narang, Ankur; Rodrigues, Eduardo; Carol, Ignacio; Lakshmikantha, Ramasesha Mookanahallipatna; Mello,, U. (OnePetro, 2015)
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      Modeling of big faults or weak planes of strong and weak discontinuities is of major importance to assess the Geomechanical behaviour of mining/civil tunnel, reservoirs etc. For modelling fractures in Geomechanics, prior ...

    • Further developments in stress initialization in geomechanics via FEM and a two-step procedure involving Airy functions 

      Rafels Ybern, Carles; Jaqués Adell, Irene; Aliguer Piferrer, Ignasi; Carol, Ignacio; Prat Catalán, Pere; Lakshmikantha, Ramasesha Mookanahallipatna; Segura Segarra, José María (2017)
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      Open Access
      The in-situ stress field in rock masses is a key aspect when a numerical analysis of a rock mass is carried out in any area of geo-engineering, such as civil, mining, or Oil & Gas. A method for the numerical generation of ...

    • Hydro-mechanical coupling in zero-thickness interface elements, formulation and applications in geomechanics 

      Garolera Vinent, Daniel; Aliguer Piferrer, Ignasi; Carol, Ignacio; Segura, J.M.; Lakshmikantha, Ramasesha Mookanahallipatna; Alvarellos Iglesias, José (CRC Press, 2014)
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      Zero-thickness joint/interface elements of the Goodman type, have been advantageously used to solve many problems in solid mechanics involving material interfaces or discontinuities. Some years ago, the authors have also ...

    • Multiple intersecting cohesive discontinuities in 3D reservoir geomechanics 

      Das, K. C.; Sandha, S.S.; Carol, Ignacio; Vargas, P.E.; Gonzalez, Nubia Aurora; Rodrigues, E.; Segura Segarra, José María; Lakshmikantha, Ramasesha Mookanahallipatna; Mello,, U. (OnePetro, 2013)
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      Reservoir Geomechanics is playing an increasingly important role in developing and producing hydrocarbon reserves. One of the main challenges in reservoir modeling is accurate and efficient simulation of arbitrary intersecting ...