ECLIPSE Compositional Simulation

For handling multicomponent fluid behavior

When oil consists of two or more hydrocarbons and those hydrocarbons exhibit distinctly different phase and composition changes relative to temperature and pressure, more complex definitions of fluid behavior are required for reservoir simulation and predictions of recovery. Compositional simulation is useful when an equation of state is required to describe reservoir fluid phase behavior or the compositional changes associated with depth. A compositional model is the right choice for studying condensates or volatile crude oils, gas injection programs, and secondary recovery studies. Knowledge of compositional behavior is also required for accurate planning and design of surface production facilities.

Capabilities

• Gas injection to increase or maintain reservoir pressure
• Miscible flooding, as the injection gas goes into solution with oil
• Carbon dioxide flooding, with the gas soluble in both oil and water
• Carbon dioxide storage under various conditions
• Thick reservoirs with a compositional gradient due to gravity
• Reservoirs with fluid compositions near the bubblepoint
• High-pressure, high-temperature reservoirs
• Natural-fracture reservoirs
• Assessment of asphaltene precipitation impacts on reservoir performance
• Chemical reactions, combustion, biodegradation, decay of radioactive tracers, and nonequilibrium reactions
• Reactions involving waterborne components such as bacteria or dissolved solids

Features and add-on options

By choosing from various add-on options, such as coalbed methane, gas field operations, reservoir coupling, EOR, multisegmented wells, and surface networks, ECLIPSE simulators can be tailored to your needs and greatly enhance the scope of your simulation studies.

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