Petrophysics: New Projects & Set-up
To create a new petrophysical interpretation in Danomics, please see the instructions in the video below:
Instructions
- To start a new project go to File>>New Petrophysical Calculation
- Enter in a name for your project and click “OK”. After clicking “OK” you will now have a new, empty project.
- On the top right-hand side of the screen you should see an area labeled “Database”. Below this are drop-down selection boxes. Choose your well header, well tops, and well log databases. Core and raster data can also be selected here.
- Choose your key well (see section on Key well selection below)
Key well selection
One of the most important decisions is what well you want to use as your key well. The methods and parameters you apply to this well will be applied to all other wells in the project. Typically you would want to select a well that has a complete suite of well logs, covers all of the zones of interest, and hopefully has core data.
The methods you choose for this well (e.g., Vclay, porosity, and saturation methods) will be used for other wells.
To set your key well go to the pane where you earlier selected your databases. Beneath this you will find a box named “Key well API:” Enter in the UWI/API number of your key well. In the example below the well 42051304970000 has been selected.
Once you have selected your key well you should save your project.
Hints & Tips
- If your data doesn't show up, check to see if the API numbers from the well headers and well logs match.
- If they do, expand the filters are and check that you haven't accidentally filtered out all of the data.
- See the Welcome Project Tutorial for a complete example.
Related Insights
Sample data to get started
Need some sample data to get started? The files below are from data made public by the Wyoming Oil and Gas Commission. These will allow you to get started with petrophysics, mapping, and decline curve analysis. Well header data Formation tops data Deviation survey data Well log data (las files) Production data (csv) or (excel) Wyoming counties shapefile and projection Wyoming townships shapefile and projection Haven’t found the help guide that you are looking for?
NMR Interpretation Module
Purpose The NMR interpretation module allows users to calculate porosity, bound and free fluids from the measure T1 and T2 distributions from NMR tools. Primary Outputs Discussion In oil and gas well logging, the $T_2$ distribution is used as a high-resolution "map" of the formation's pore system. While a standard porosity tool tells you how much fluid is there, NMR tells you where that fluid is trapped and whether it will flow.
General Concepts in Flows
Because Flows will be a new concept to many of you it is important to understand the general concepts that flows are built upon. These concepts are: Many tasks are repetitive These tasks should be done consistently These tasks can often be split into small pieces. What Are Flows? Flows are batch processing system that combine Flow tools to perform operations consistently across a dataset, and are especially useful for repetitive tasks like gridding data.