Welcome to Danomics: Geoscience

Getting Started with Geoscience in Danomics

This series of tutorial videos will guide you through how to get started as a geoscientist in Danomics. It walks you through every step of the process from loading data to making maps and cross-sections, picking tops, making structure and isopach grids, building 3D displays, and even how to identify landing zones.

It uses a mix of the basic functionality available to all Danomics users and some functionality that is specific to users with a geoscience license.

Sample Data

For this tutorial you will need well log, well header, shape file, and deviation survey data. You can download them using these links:

• Well log data
• Well header data
• Formation tops data
• Production data (CSV format / Excel format)
• Wyoming Counties Shapefile and Projection
• Wyoming Townships Shapefile and Projection
• Deviation Surveys

Step 1: Loading Data

To get started you will first need to upload some data to Danomics. In the video below we show how to upload well log, well header, well tops, production, and shapefile data.

Step 2: Creating a New Map

In this video we create a new .map file and populate it with wells and shape files.

Step 3: Adding Cross-sections

Now we will filter our log database down to wells with logs and add a cross-section layer to the .map file.

Step 4: Picking Tops

This video shows how you can pick tops across your wells, create new tops, and use the AI-assisted tops picker to accelerate your workflows.

Step 5: Adding Deviation Surveys

Next we add the deviation surveys allowing us to view the wells in TVD and TVDSS views in addition to MD view.

Step 6: Project Projections

Adding in a coordinate projection system is required to generate grids that accurately reflect their locations. This video shows how to add a project coordinate projections system.

Step 7: Structure and Isopach Grids

After we have added the coordinate projection systems we are now ready to generate structure and isopach grids and display them on our map. We will generate the grids using our TopsToStructure grid tool.

Step 8: Styling Maps and using 2D and 3D views

In this video we will style our grid displays showing two properties at once, add a 3D map view for our structure grids, and a 2D projection view for inspecting the structure surfaces.

Step 9: Basic Log Calcs

Petrophysics users will have access to the most sophisticated tools available for performing well log interpretations. To learn more check out the petrophysics welcome guide. However, in this video we demonstrate how you can perform a basic well log analysis without access to a petrophysics license using your own equations. The equations used in this video are as follows:

_gr_clean = 0
_gr_clay = 200
_rho_matrix = 2.65
_rw_ft = 0.05
VSHALE = clamp((GR_COMP - _gr_clean) / (_gr_clay - _gr_clean), 0, 1)
PHIT = clamp((_rho_matrix - RHOB_COMP) / (_rho_matrix - 1.0), 0.001, 0.42)
SW = clamp(((1 * _rw_ft) / (RESD_COMP * PHIT ^ 2)) ^ (1/2), 0, 1)
NET_RES = ifelse(VSHALE <= 0.5 && PHIT >= 0.06)
NET_PAY = ifelse(VSHALE <= 0.5 && PHIT >= 0.06 && SW <= 0.7)

Step 10: Property Mapping

Continuing on from the basic log calculations performed in the previous video we now generate average property maps for Vshale, PhiT, and Sw and summary maps of Net Res and Net Pay.

Step 11: 3D Wellbore displays

We now use the log calculations from the video in step 9 to display well logs in our 3D view to make a new visualization of our data.

Step 12: Landing Zone Analysis

Now we take a detour from our core geoscience workflow to highlight the ability to perform a landing zone analysis. We will identify the landing zone for all of our horizontal wells with deviation surveys, calculate the footage-in-zone, percent-in-zone, and the evaluate lateral length.

Summary

Congratulations on completing the Geoscience Welcome Tutuorial in Danomics. Although there is significantly more functionality available, the knowledge taken from the videos above should provide you with the fundamentals needed to work through a basic geoscience project in Danomics. If you have any questions or need any help, please contact us at support@danomics.com.

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