11.1.6 Advice on Grid Import

• Preserve the topology of the grid by retaining the grid indices and dimensionality.
• Preserve the earth model or structural model interpretation upon which the grid is based.
• Import the lowest order grid geometry even if the higher order geometry or other extensions are not within the scope of the data model of the importing application.

• Be prepared to import parametric point geometry, because the parametric lines upon which they’re based provide more information on the geometry of the grid than the positions of the cell node vertices.

Only one of the six grid classes now supported by RESQML has seen widespread historical use in the industry (corner-point grids). Lack of shared data standards for 2.5D unstructured column-layer grids and for fully unstructured 3D grids have limited their use and accessibility in the industry, and have impeded cooperation between different technical domains, e.g., flow simulation and geomechanical calculations. A period of experimentation and learning should be expected as the new RESQML data standards make their impact.