Once the wells are established, the next phase is . This involves creating the skeleton of the reservoir. In a traditional workflow, the user interprets seismic data to generate horizons (surfaces representing the top and base of the reservoir) and faults. The user then constructs a "pillar grid," a 3D lattice that defines the geometry of the reservoir. Imagine constructing a building: the horizons and faults are the floors and walls, and the pillar grid is the steel framework that holds everything together. This step is crucial because it respects the structural complexity of the field; if a fault is modeled incorrectly, the fluid flow simulation later on will be inaccurate.
An empty grid is a geometric skeleton; property modeling adds the “flesh”—distributing rock and fluid properties. This is a geostatistical exercise. Common properties modeled in Petrel include: petrel tutorial
Right-click the Input pane and select .
Mastering the Subsurface: A Beginner's Guide to Petrel Software Once the wells are established, the next phase is
Before populating the 3D grid, continuous well log data (measured in inches) must be averaged into the cell sizes of the 3D grid (measured in meters). Use the tool. The user then constructs a "pillar grid," a
Once imported, data can be managed using the . You can create folders, move data, and rename objects as needed.
After initializing the model with pressures and saturations, the simulation is run, often in the simulator. The results are then visualized back in Petrel , allowing engineers to see pressure depletion, water-front movement, and recovery over time.