Petrel Tutorial

Right-click the Input pane and select .

Go to Project Settings > Coordinates and Unit and click 'Select' to define your CRS (e.g., ED50 UTM31). Set Unit System: Select Metric, Imperial, or Custom. Define Seismic Reference Datum (SRD): Set the and set the replacement velocity, usually at sea level. Importing Data

Located on the left, it displays all imported raw data, including wells, seismic volumes, and surfaces.

Structural modeling creates the framework for the reservoir, defining its geometry and boundaries. petrel tutorial

Run the realization process to convert the raw SEGY into an optimized Petrel format ZGY file. 3. Seismic Interpretation

Set the unit system immediately: Project > Project Settings > Units . Select either or Field (Imperial) units. Note: You cannot change this easily once data is populated.

Before loading data, it is critical to understand the Petrel user interface (UI) and establish a proper project coordinate system. Mismanaging units or coordinates early on will cause severe alignment errors later. Interface Components Right-click the Input pane and select

Choose your tracking method: (click-by-click), Guided tracking (semi-automated between clicks), or Autotracking (automated 3D seed propagation).

Configure the setup dialog: Specify the byte locations for Inline and Crossline numbers, and confirm if the vertical domain is or Depth (m) . 3. Seismic Interpretation and Horizon Picking

Petrel provides an interface for simulation (e.g., ECLIPSE) to predict future production. Define Seismic Reference Datum (SRD): Set the and

Define your fluid contacts (e.g., Oil-Water Contact or Gas-Oil Contact).

After modeling properties, calculating the Original Hydrocarbons in Place (OIIP/GIIP) is vital.

Set your input properties: link the framework to your 3D Porosity ( ), Net-to-Gross (NTG), and Water Saturation ( Swcap S sub w Input the or Gas expansion factor.

To use well logs in a 3D grid, you must upscale the high-resolution log data into the larger grid cells using methods like "Arithmetic Mean" or "Most Probable." 5. Structural Modeling (Pillar Gridding) This is where the 3D "skeleton" of your reservoir is built.