ECLIPSE 2018.1 development has been focused on improvement of existing functionalities specifically in two areas: performance and usability. For performance, new improvements around licensing to handle Block Parallel license and Reservoir Coupling has been created allowing these two options to work at the same time. This gives users the ability to run multiple models connected, while taking advantage of the Block Parallel license to reduce runtime. Another important aspect of performance is the new summary that allows to report the waiting time between domain partitions when running a parallel simulation. This feature will help identify areas or domains that might cause delay on the overall simulation runtime, so you can troubleshoot different aspects of the simulation, e.g. the user can redefine the partitions based on the waiting time during the simulation.

On the usability side, ECLIPSE 2018 offers the capacity to define well connection factor multipliers via User-Defined-Argument (UDA). This allows a more flexible and dynamic update of the connection transmissibility empowering users to perform advanced and customized workflows, damage due to water influx at connection level.

ECLIPSE 2018.1 Key Developments


  • Block Parallel license (BPARA) is compatible with Reservoir Coupling option.
  • New summary output (DTMWAIT) added to report the waiting time among partitions for parallel simulation.

Workflow and Usability

  • Connection transmissibility multipliers via User-Defined-Argument (UDA).
  • Connection summary vectors can be used in reference to User Defined Tables (UDT).
  • Both functionalities mentioned above can be used for ECLIPSE 100 and ECLIPSE 300. 


  • Enhanced WAG hysteresis in ECLIPSE 300.
  • Convergence improvements for ECLIPSE 100 surfactant models.
  • Enhanced flash calculation for ECLIPSE compositional and thermal simulations.
  • Improved handling of multiple EOS regions in ECLIPSE Thermal.
  • Complex models: improved grid coarsening and defining transmissibilities.
  • Non-Darcy flow: enhanced correlation for all connection penetration directions.
  • Generalized pseudopressure (GPP): improved calculation of well drawdown limits.
  • Performance improvements with Dual Porosity model in parallel.
  • Enhanced performance in parallel with Flux Boundary option in ECLIPSE 300.
  • Increased performance importing an EGRID file for large ECLIPSE 300 dual porosity models..

Other products development associated to ECLIPSE 2018 


  • VISAGE simulator efficiency improvements
    • The memory footprint reduced by 20-25% when running simulation on 8+ threads.
  • Power-law creep material model.
    • Norton-Bailey creep.
    • Choice of primary and/or secondary creep.
    • Option of time or strain hardening behavior.
  • Sector modeling.
    • Using Petrel Geomechanics, sector models can now be created from field scale models.
  • New fault spacing calculation methods
Read More Read Less


The ECLIPSE simulator is now available in the DELFI cognitive E&P environment

New insights can be gained through the utilization of the secure, cloud-based environment as increased accessibility and flexibility to more science in the ECLIPSE simulator is automatically and instantly at your fingertips.

DELFI Cognitive E&P Environment

Experience the DELFI Environment

Learn more