Jump to content
RockWare Support Forum

Recommended Posts

Hello!

It is my first time in the forum

I have a set of almost 200 boreholes in the borehole manger, so I can make-visualize my stratigraphy and lithology volumes.

I also have a DEM of the area in an ascii file (XYZ) which I imported to the utilities

And my question is: how could i combine these two datasets? Can i incoporate the DEM to the stratigraphy-lithology data?

Thank you in advance

Nikos

Share this post


Link to post
Share on other sites

Hi NikosSp,

 

To use your XYZ DEM data in your project, choose the Utilities Map | Grid-Based Map to create a RockWorks Grid file (.RwGrd). This file can be plotted on cross-sections to illustrate the ground surface and used to constrain the upper surface of a Stratigraphy model (Stratigraphy | Model | Interpolate Surfaces Options | Constraining Surface) or Lithology model (Lithology | Model | Additional Options Superface.

 

To combine borehole Stratigraphy information with your datasheet, choose the Borehole Manager File | Transfer menu. Create a RockWorks grid for each surface with the Map | Grid-Based Map menu.  Use the Stratigraphy naming convention (formation_TOP, formation_BASE) to add them to a Stratigraphy model.

 

To combine borehole Lithology data with your datasheet, choose the Borehole Manager File | Export | Lithology Data -> Utilities Datasheet menu.

 

Regards,

Tom B

RockWare Inc

 

Share this post


Link to post
Share on other sites

Hi,

There are many gridding options in Rockworks and the use of each one gives different results depending on the algorithm that you choose which I find to be overwhelming since none of them are particularly attractive.  I personally like the type of grids created with SURFER (Krigging) and ArcGIS (TopoToRaster).  I have not found one in Rockworks that can reproduce either of these. I would suggest that if you have XYZ data and have plotted it in another program that creates a grid to you liking that you use the Rockworks Utilities Program to import that grid using Utilities/Grid/Import and select the source data format that you have your grid in.  There you can give it a name and follow the other steps mentioned above.  To put it in shorter terms, my experience has been gridding is NOT one of Rockworks strongpoints and needs to be improved, however it does accept grids created in other programs, which is nice.

 

Best Regards,

Edward Hakanson

Share this post


Link to post
Share on other sites

Dear Mr Hakanson.

Thank you for your comment.

My XYZ data was extracted from GIS and I just used a part of it, so it was already gridded.

About choosing the appropriate interpolation method, I think it is generally risky to perform automatically algorithms since all of them are designed for datasets with specific staistical properties. None of them is better or worse than others. But that is another big discussion....

I just finished my project but I have time to experiment so as to develop it

Thank you again.

Nikos 

Share this post


Link to post
Share on other sites

Hi Edward and Nikos,

 

Thank you for your comments about RockWorks gridding algorithms.

 

Edward: Please send your data and gridding settings in RockWorks, Surfer, and ArcGIS to [email protected] and we will be happy to pursue your request further. Include graphic examples of the contour maps with annotation indicating what you would like to change.

 

Nikos: I agree with your comments stating that each dataset has unique requirements for choosing gridding algorithms and settings. The user should use their information about the project to choose the right interpretation.

 

Regards,
Tom B

RockWare Inc

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×