Pre-processing

Use pre-processing tasks to prepare and export a MEM solver deck.

In this tutorial, you will learn how to import geological surfaces (horizons and faults) from an earth modelling platform*. Clean up those surfaces so that they are geologically and volumetrically consistent, build tetrahedral solids elements. Once the modelling domain has been constructed and discretized into 3D elements, you will create the required objects, such as faults (as contacts), node and element groups, materials and loads. You will learn how to use these objects to assign and be assigned the necessary solver cards and finally how to export the complete solver deck.
Note: Now this tutorial will use the Abaqus (3D) template. For other solvers, similar steps are necessary but the details vary. Contact support for help if required.
Below are the highlights of pre-processing tasks that you will cover in the tutorial:
  • Import and Classify TSurf model
  • Remesh horizons
  • Create sidewalls and enclosed volumes
  • Generate Tetra mesh and create contacts
  • Assigning materials, creating boundary conditions and load steps
  • Export solver deck
Below is an illustration of the workflow-


Figure 1.

Files Required

Below are the set of files required to complete this tutorial-
Pre processing
TSurf Model Files
Horizon Top.ts
Horizon-A.ts
Horizon-B.ts
Horizon-C.ts
Horizon-D.ts
Horizon-E.ts
Horizon-F.ts
Horizon Bottom.ts
Fault-A.ts
Fault-B.ts
Fault-C.ts
Mesh Criteria File
geod_500.criteria
Mesh Parameter File
geod_500.param