Creating a 3D grid

After you have constructed the 3D structural model, you use it to build the 3D Grid. The grid serves as a data container, storing all the reservoir properties. You then use the grid (and its data) as an input to the reservoir simulation.

The JewelGrid is an innovative system that combines the advantages of irregular and regular grids (for more on grids and the JewelGrid system, see About 3D modeling and grids). Especially when modeling discontinuities, this technology allows you to capture structural complexity while its orthogonal nature takes into consideration reservoir simulations (for modeling faults, see Discontinuities in the JewelGrid system).

With the 3D Gridding workflow you build a framework defined by the geological structure and stratigraphy. The end result is a 3D Grid ready to be populated with rock properties.

In the Tools section you can create a basic geological model with an Easy Grid, without stratigraphic horizons, faults or markers. This is a simple Cartesian-based grid that you can use for testing modeling or reservoir simulation scenarios.

The 3D Grid strip also offers tools to modify or covert an existing grid. To solve horizon-marker mismatches within a grid or identify incorrect marker input, use the Grid Well Markers QC tools. To convert an existing grid to a sub-grid or stair-step grid, or upscale it, use the tools in the Grid from Grid button-group of the strip.