The Well Log Calculator in g-Space is a tool that allows users to generate custom well log curves through mathematical expressions applied to existing well data. It is accessible from the Calculators Bar by clicking on the Well Log Calculator button, which opens a user-friendly wizard interface for quick and efficient log creation.
The wizard consists of two main tabs: General and Preview.
In the General tab, users can define the core parameters for the calculation process. It contains the following key components:
•Output Log: Users can either select an existing well log curve from the dropdown menu or create a new curve by naming it. This output will store the results of the calculation.
•Expression: This is the central area for performing operations. Users must input an arithmetic expression using the available well log curves (e.g., porosity, density) and mathematical operators. Expressions can be as simple or complex as needed, enabling flexibility in creating derived curves. Refer to the Trace Headers Math for a description of the available mathematical functions.
•History: g-Space automatically saves previous expressions, making it easier for users to reapply calculations they have used in the past without having to rewrite them.
The Preview tab provides a real-time visualization of the data before finalizing the calculation. It consists of two columns:
•Depth: Displays the depth intervals for the well data in ascending or descending order.
•Values: Shows the resulting values based on the arithmetic expression entered in the General tab. This preview ensures that users can verify the output and confirm the expression before applying it to the entire dataset.
After completing the calculation, the newly generated curve is automatically saved in the Las folder within the Data Manager for each well in the project.
The curve will be calculated for the Current well on the Location map.
