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Simulation Model Building To get the most out of your flow simulator, you need a high-quality model as input. RMSSimgrid offers a user-friendly platform for building, maintaining, and post-processing simulation models. This includes robust grid generation for complex geometries, advanced upscaling algorithms, and methods for defining well data for simulations. The integrated environment promotes close cooperation between geoscientists and engineers. IN SUMMARY • Build 3D simulation grids consistent with the structural framework • Handle simple and complex geometries equally easy • Choose optimum gridding solution for fault representation and zone handling • Edit grid geometry in 3D • Represent heterogeneities through industry-leading upscaling techniques • Create well data for flow simulation • Quality control your simulation model through a rich suite of tools Local Grid Refinements Local grid refinements may be required in well regions, for increased accuracy. RMSSimgrid offers a large toolkit for generating local grids, where local grids can be defined interactively or automatically from well and parameter data. Segmentation Grid segments may be used to define regions in the 3D grid, for instance as a fault block in the reservoir. Modeling and analysis of individual regions can then be easily performed, where the amount of data compared to the total model is reduced. Results for a selected set of grid segments can be exported to the flow model, making generation of sector models an easy task. • Exchange data with external flow simulators in a user-friendly way Simulation Grid Design 3D grids can be constructed with any desired grid control and with full user control over important parameters. Grid regularisation can be used to achieve close to orthogonal cells, ideal for flow simulations. Within each zone, advanced layering options are available for accurate representation of reservoir features. Complex geometries associated with normal and reverse faults are easily handled, using pillar representation or staircase representation. Two alternative fault representations are shown in the cross sections to the right. Control lines can be used to ensure that the grid reflects important model features, such as reservoir boundaries, major faults, or well geometries. Non-uniform grids with an optimum grid resolution are also easily achieved through use of control lines. Fault representation Simulation Model Building Upscaling Grid Properties Export to Flow Simulators Upscaling algorithms in RMSsimgrid offers a rigorous approach to handle the complex cell geometries associated with corner-point grids. Direct sampling offers a fast and robust method for identifying the cells in the geo grid contributing to each flow simulation cell, minimizing an important general source of error in upscaling. Tools describing the result of the sampling process are available, allowing for detailed quality control. Export of simulation models to leading flow simulators is easy and user-friendly. Exported data can be renamed, to fit requirements in the simulator of choice. Data for local grids can be exported together with the global grid or separately. RMSSimgrid offers a complete suite of upscaling techniques, including static and flow-based methods. For flow-based methods, alternative boundary conditions are offered, and a skin or buffer region can be used to reduce artifacts of the selected boundary conditions. Novel transmissibility upscaling methods can be used to achieve a accurate representation of heterogeneities in the flow model. A special method is available for upscaling permeability to be used as input to well index calculations. The reservoir modelling process is not complete until the impact of heterogeneities on fluid dynamics is fully understood and the predicted results match production history. RMSSimgrid supports import of simulation results from commercial simulators for further analysis and visualization inside RMS. A rich toolkit for data analysis and for conversion between data types makes RMS the ideal platform for combined analysis of production data, geological data, and seismic data. Post Processing Transmissibility upscaling Cell-based upscaling Well Data for Flow Simulation Based on well trajectories, data for perforation intervals, and the 3D grid, RMSSimgrid can construct well data for flow simulations. Also zone log data can be used as input, to secure that perforations will be located in the correct zones in the 3D grid. The picture below shows comparison between the perforated real trajectory and the grid representation in a flow model. To learn more please visit www.roxarsoftware.com or email us on [email protected]. Roxar 2014 Well data for flow simulation ROXAR AS, GAMLE FORUSVEI 17, PO BOX 112, 4065 STAVANGER, NORWAY TELEPHONE +47 51 81 8800 FAX +47 51 81 8801 WWW.ROXAR.COM