This final phase transitions your model from a static geological representation to a dynamic, flowing reservoir asset. Define Fluid Properties (PVT) and Rock-Fluid Interactivity Go to the tab. Open the Simulation Case Manager .
Input your upscaled facies logs and define variogram distances to control the horizontal and vertical continuity of the facies bodies. Petrophysical Modeling (Continuous) Open .
Well logs have a vertical resolution of inches, whereas grid cells are meters thick. You must average the log data into the grid cells that the wellbore intersects. Open .
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:
Go to the workflow and select Fault Modeling . petrel tutorial
For forecasting prediction periods, switch well constraints to bottom-hole pressure (BHP) or economic limit constraints. Exporting and Running the Simulation (Eclipse/INTERSECT)
: Biased petrophysical properties by your facies distribution. For example, restrict high porosity values strictly to your interpreted sand channel facies, while forcing low porosities onto shale cells. 7. Volumetric Calculations and Simulation Export
The first step is establishing a workspace with the correct spatial parameters. : Go to File > New Project .
Combine fault and surface interpretations to build the structural framework. This final phase transitions your model from a
: Import directional surveys (MD, Inclination, Azimuth) to accurately calculate the 3D trajectory of deviated or horizontal wells.
This step involves creating the "skeleton" of the reservoir.
Display your Gamma Ray, Resistivity, and Density logs side-by-side. Picking Well Tops
Select within the structural modeling workflow. Insert your interpreted seismic horizons or well tops. Input your upscaled facies logs and define variogram
Creating an accurate 3D grid is the foundation of reservoir characterization.
Well data bring ground truth. In the Well Correlation window, users load well tops (formation boundaries) and display curves. Key operations include:
Click along a seismic discontinuity on your screen to digitize a fault segment.
and units (Metric vs. Simulation units like Eclipse) is the first critical step. The Ribbon Interface:
Before importing data, you must understand the user interface (UI) and set up the project environment correctly to prevent spatial coordinate mismatches. Navigate the User Interface The Petrel UI is organized into logical functional areas: