ECLIPSE Simulators Black oil, compositional, thermal, and streamline reservoir simulation. Robust, reliable reference simulator The ECLIPSE family of reservoir simulation software offers the industry’s most complete and robust set of numerical solutions for fast and accurate prediction of dynamic behavior for all types of reservoirs and development schemes. ​The ECLIPSE suite of simulators can be used to model any reservoir type. Select from one of the base simulators below and choose from a range of add-on options to tailor your simulations to meet your needs. Fully implicit, three-phase, three-dimensional, and general purpose black oil reservoir simulator. Workflow ​The ECLIPSE black oil simulator is the industry standard for reservoir modeling. The black oil model assumes that the reservoir consists of three phases: oil, water, and gas (with gas dissolving in oil and oil vaporizing in gas).​ Features Variety of grid geometry options such as corner point, conventional block-center, and radial Models all common recovery mechanisms (e.g., solution gas drive and water drive) Definition of reservoir regions containing different rock or fluid types Leading well modeling, including crossflow effects Dual porosity and permeability for modeling fractured reservoirs Fault modeling using non-neighbor grid connections Sophisticated well, group, and field controls (see ECLIPSE Field Management) Analytical and numerical aquifers Three-component miscible flood modeling Non-darcy flow for accurate simulation of high permeability regions Temperature option to model, for example, the injection of cold water into a hot reservoir (full thermal simulation is also available using the ECLIPSE Thermal Simulator) Tracer, brine, and API tracking Rock compaction Hysteresis