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STARS - Advanced Processes & Thermal Reservoir Simulator

STARS is the undisputed industry standard in thermal and advanced processes reservoir simulation. Reservoir engineers use STARS to simulate changes to the reservoir based upon fluid behaviour, steam or air injection, electrical heating or chemical flooding.

  • Modelling for dispersed components and simulate formation of emulsions and foams, and predict asphaltene precipitation/deposition
  • Accurately model the physics of all in-situ recovery processes
  • Multi-scale modelling from core floods to field-scale
  • Increase confidence in field development plans and support capital expenditures
  • Design accurate SAGD well pairs
  • Seamless integration with CMOST for rapid, accurate history matches and uncertainty analysis, while leveraging limited engineering time

STARS is a thermal, K-value compositional, chemical reaction and geomechanics reservoir simulator ideally suited for advanced modelling of recovery processes involving the injection of steam, solvents, air and chemicals.  The robust reaction kinetics and geomechanics capabilities make it the most complete and flexible reservoir simulator available.  STARS can model the in-situ formation of emulsions, wax precipitation and thermal desorption. STARS includes a rigorous, iteratively-coupled geomechanics module for modelling compaction and dilation behaviour that may occur during recovery.

THERMAL

  • Steam Flooding
  • Cyclic Steam Stimulation (CSS)
  • Steam Assisted Gravity Drainage (SAGD)
  • Expanding Solvent SAGD (ES-SAGD)
  • Thermal VAPEX
  • Hot Water Flooding
  • Hot Solvent Injection
  • In-Situ Combustion (Air Injection)
  • High & Low Temperature Oxidation
    (HTO & LTO)
  • Electrical Heating

 CHEMICAL FLOODING

  • Gellation, simple or multi-stage multi-component
  • Foams, emulsions and foamy oil
  • ASP (Alkaline-Surfactant-Polymer) Flooding
  • Microbial EOR
  • VAPEX
  • Low Salinity Waterflooding
  • Reservoir Souring
  

COMPLEX WELLBORE MODELLING

  • Flow Control Devices (FCDs)
  • Transient Segmented Flow
  • Multiple Tubing Strings
  • SAGD Start-up
  • Liquid Accumulation

SOLIDS TRANSPORT & DEPOSITION

  • Fines Migration
  • Cold Heavy Oil Production with Sand (CHOPS)
  • Asphaltene Precipitation, Flocculation, Deposition and Plugging
  • Wax Precipitation

GEOMECHANICS

  • Compaction and Subsidence
  • Rock Failure
  • Dilation
  • Creep

To sign up for any of the STARS specific training courses, please visit our training page or contact training@cmgl.ca

Introduction to CMG's Modelling Workflows (2-days)

The course will introduce the latest technology in pre and post-processing capabilities in CMG simulators. These include Builder, which handles the bulk of data preparation for black oil (IMEX), compositional (GEM) and advanced thermal/chemical process (STARS) simulators. Note: This course was formerly known as 'Introduction to STARS'. Read more...

Introduction to Thermal EOR Modelling (2-days)The course will introduce concepts of the STARS simulator with emphasis on component design and other advanced features available in STARS. Read more...

Numerical Tuning Techniques for CMG Simulators (1-day)The course will introduce concepts of CMG simulators (IMEX/GEM/STARS) with emphasis on numerical tuning and diagnosis of STARS problems. Read more...

SAGD Simulation using STARS (4-days)The course will review the basic concepts of SAGD recovery and how to simulate this process using STARS. After the review of basic concepts the course will provide detailed instruction on the complexities of simulating this extensively used bitumen recovery process. Read more...

Chemical EOR Simulation using STARS (3-days)The course will introduce the basic concepts of chemical flooding and how to simulate this process using the advanced reservoir simulator STARS. The topics will progress from laboratory design through simulations to field implementation. Read more...

Wellbore Modelling in STARS (2-days)The Flexible Wellbore (FlexWell) Model is a fully-coupled implicit wellbore model with the following capabilities: Accurately calculate the wellbore pressure gradient to determine its impact on reservoir inflow/outflow. Read more...

Geomechanics in GEM & STARS (2-Days)

This course will introduce the geomechanical concepts from simple dilation/compaction table input to complex finite element strain/stress approaches. Stress-related phenomenon will be discussed including rock deformation and subsidence. Read more...

Modelling of Carbonate Naturally Fractured Reservoirs (3-days)

The course will start by covering the geological aspects of carbonate fractured reservoirs, NFRs, in terms of matrix and fractures characterization and determination of its intrinsic and effective properties needed for reservoir modelling. The course will explore concepts of wettability, Pc and Kr curves of carbonate reservoirs. Read more...

CMG is pleased to announce the 2012 Mid-Year Release (MYR) is now available. If you would like more information about the new release, please contact our sales team.

STARS 2012 - New Feature Highlights:

  • Improved corner point efficiency provides an 8x savings in storage than previous versions of STARS
  • Simulate multiple types of flow control devices (FCD) within the same tubing strings
  • Enhanced support for low salinity modelling
  • More flexible relative permeability interpolation over more variables
  • Accurately model field implementation with specific gas-lift port locations referenced to depth
  • Save time by conducting geomechanics simulation on any STARS model using GEOGRID & Geomechanical post-processing
  • Upwind technique - accuracy of 9-point without previous limitations

 


All CMG simulators have a base set of common modules to ensure compatibility, speed and quality of output remains consistent.

Advanced gridding options

  • LGR
  • Cartesian
  • Cylindrical
  • Fully non-orthogonal corner point grids
  • Dynamic Gridding (DynaGrid)
  

Wellbore Model

  • Control well production and injection at the field, group, platform and well models
  • Voidage replacement
  • Gas lift optimization
  • Gas recycling
  • Flexible Wellbore (FlexWell)

Adaptive Implicit Formulation

Run Time Dimensioning

Comprehensive Rock-Fluid Interaction

  • Relative permeability with hysteresis
  • End-point scaling
  • Capillary pressure with hysteresis

64-bit Windows & Linux

  • Operating environments and performance standardized for 64-bit compatible for Windows, Linux, Intel and IBM

Seamless integration with CMOST

NOTE: After the 2012 General Release, CMG will no longer test, ship or support subsequent software releases on 32-bit processors and operating systems. Customers using a 32-bit system will be requested to use the 2012 release or older.

Minimal Hardware or Laptop:

Small/Medium Black Oil <250,000 blocks and/or WinProp

Intel Pentium 4 or AMD-based PC, 2 GB RAM, Windows XP or Windows 7, OpenGLcapable video card

Recommended Hardware

  • 2 quad-core Intel Xeon 5502 or better
  • 6 GB RAM or more Windows XP x64 or Windows 7 x64 or Red Hat Enterprise Linux 5 update 5 for x86_64
  • OpenGL video card (for example, ATI FireGL V5110, NVIDIA QuadroFX 1800)

Recommended Hardware for Simulation of Large Models

(a) Medium Large: >2,000,000 IMEX, 1,000,000 GEM, 500,000 STARS

  • 2 quad-core Intel Xeon 5520 or better with Windows XP x64, Windows 7 x64, or Red Hat Linux 5 update 5 x86_64
  • 12 GB RAM or more

(b) Large: >5,000,000 IMEX, 2,500,000 GEM, 1,000,000 STARS

  • 2 eight-core Intel Xeon E5-2680 or better with Windows XP x64, Windows 7 x64, or Red Hat Linux 6 update 2 for x86_64
  • 8 or 16-core IBM Power6/Power7 based servers running AIX 5.3 or Red Hat Enterprise 5
  • 24 GB RAM or more

(c) Very Large: >15,000,000 IMEX, 8,000,000 GEM, 5,000,000 STARS

  • 4 socket 8-core Intel Xeon E5-4650’s or better with Windows 2008 HPC if 128 GB of RAM or less, Windows 2008 R2 if 256 GB of RAM or more, or Red Hat Linux 6 update 2 for x86_64
  • 32-core or more IBM Power6/Power7 based servers running AIX 5.3 or Red Hat Enterprise 5 update 5 for POWER
  • 64 GB RAM or more

Recommended Hardware for Visualization of Large Models

(Windows XP x64 or Windows 7 x64)

(a) Medium Large: >2,000,000 blocks

  • OpenGL video card such as NVIDIA Quadro FX 1800 or Quadro 2000
  • 12 GB RAM or more

(b) Large: >8,000,000 blocks

  • OpenGL video card such as NVIDIA Quadro FX 4800 or Quadro 4000 or Quadro 5000 for up to 10,000,000 blocks
  • 16 GB RAM or more

(c) Very Large: >10,000,000 blocks

  • OpenGL video card such as NVIDIA Quadro FX 5800 or Quadro FX 6000
  • 24 GB RAM or more

 

Download the 2012 hardware recommendations.