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Alison

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Everything posted by Alison

  1. LAS Data loading

    During the import, you can tell the program to preserve the location information in the database, rather than pulling the location information from the LAS file. This is done in the in the last window of the import wizard, where the "Required Borehole Data" is displayed. To preserve the information stored in the database, right click in each location field (Easting, Northing, Elevation, etc.), and choose Read from Database. Please let us know if you have any additional questions. Best Regards, Alison
  2. Estimation of Mineral Resources

    The first step would be to determine the tons of material in a model cell. If you go to Solid / Statistics / Report, and run a statistical report on your solid model, the volume of a cell is listed at the Voxel Volume. You can convert this to tons by multiplying this number by the density of the material (presumably in tons/cubic feet or cubic meters). In the same solid model statistics report is a value titles the “Sum of all node values”. If you multiple this number by the tons of material in each cell, you’ll convert that sum from grams/ton to grams. I hope that this helps. Please let us know if you have questions. Thanks, Alison
  3. Tim, As long as you don't change the names or relationships of the existing fields, this should be fine. Please let us know if you have other questions. Best Regards, Alison
  4. Confined aquifer piezometric heads

    Hi Tim, I would typically recommend that you use the stratigraphy table to store the top and base of your hydro-stratigraphy. And then use the Aquifer table to store variations in the water level within the piezometers. Could you explain how you would want the piezometric heads to be displayed, if not with a water level symbol at the actual elevation of the water level in the piezometer? Would you want the symbols to always plot at the top of the aquifer boundary unless the aquifer is not completely saturated in the vertical direction? If you could provide some additional details about exactly how you would want the piezometric heads to display in the diagram, I can determine if it would be possible in RockWorks. Thanks, Alison
  5. Pitzer Ion Interaction Model

    The Pitzer model will be supported in a future version of PetraSim. We'll be sending out an announcement to our users once this is available. In the meantime, if you have purchased TOUGHREACT Pitzer from LBNL, the input files created by PetraSim could be used with the LBNL executable. Visualization of results wouldn't be possible in PetraSim unless you were to create the CSV files used by PetraSim for result visualization. You could create these by some post processing of the TOUGHREACT output files created by the simulator, or through some additions to the source code. If you'd like additional details about this, please let me know. Best Regards, Alison
  6. clip model extents

    Lara, There is still no way to resample the data without getting an average of the surrounding model nodes. So, I think that the idea of exporting the data to a list of XYZ values and re-interpolating the model is your best bet. I would recommend that you try using the closest point algorithm to do this. If you run into any problems, please let us know. Thanks, Alison
  7. Also, if you want the program to only take into account data within (or outside) of the polygon during interpolation, then you can do this in the Spatial Filters panel on the right side of most menus. Some of the modeling tools allow you to automatically clip a model based on the polygon after it is created (stratigraphy, I-Data/P-Data/T-Data). Other types of models, such as lithology and grids/models created through the Utilities, have to be clipped after they are initially created through the Grid/Filter or Solid/Filter menu. Thanks, Alison
  8. True Thickness

    Jack, You should enter the measured depth along the borehole. If the borehole is angled or deviated, then the program will use the survey information (stored in the Orientation table) to determine the true xyz location of contacts or samples. Please let us know if you have additional questions. Thanks, Alison
  9. Problem with XY Coordinate Table

    I'm not able to reproduce this using RockWorks15 or RockWorks16. What version of RockWorks are you using?
  10. Problem with XY Coordinate Table

    The problem is that you cannot have a ' character in the name of the XY Coordinate Table. If you recreate the table with a slightly different name (for example) Perf_B_B_Sector_1, does the program work correctly? Best Regards, Alison
  11. Seth, There are no tools in the program currently for using multiple polygon tables at once. I would suggest that you create one model for each polygon, and then sum all of the models together to create a composite model. Models can be added together using the Solid / Math / Model & Model math tool in the Utilities. When you do this, you should make the Undefined Node value 0, instead of the null value. This is because the sum of the null value plus any other value always results in a null value. If you use 0, instead of null, then the program can be used to add all three plume models together. Please let me know if you have any other questions. Thanks, Alison
  12. clipping a 3d Stratigraphy Model (RW15)

    You should be able to do this by rebuilding the Stratigraphy Model with the "Interpolate Surfaces" option checked off. This will use the modified grids to rebuild the stratigraphy model (including the side panels). If you continue to have problems, please let me know. Best Regards, Alison
  13. clipping a 3d Stratigraphy Model (RW15)

    Hi Mira, It is really hard to know what the problem is without looking at your data, but I do have one idea about what might be happening. When you clip the top and base grids with the polygons, what values are you assigning to the cells outside of the polygons? You should be assigning a null value (-1e27). In the image you've sent, it looks like you might be assigning values of 0 instead. If this doesn't resolve the problem, it would be helpful if you could zip up your project (including your grids), and send it over to tech @ rockware.com. I think that we should be able to resolve this by taking a look at the model files. Thanks, Alison
  14. Unfortunately, I'm not able to post links or emails in this forum. If you do a Google search for "tough+ LBNL", you should be able to easily find the TOUGH2 page. From there, you can post a note on their forum by going to User Support / User Forum. You can also find a list of contacts there. Thanks, Alison
  15. I don't know of any tools that can handle CO2 in a methane hydrate reservoir. I would suggest that you contact the authors of TOUGH+/HDYRATE to see if they have any new simulators that might work for you. Best Regards, Alison
  16. Problem export to JPG image

    Thank you for reporting this. Our programmer is working on this problem now, and we should have a new build posted on our website within a day or two. If this is urgent and you need a fix for this more quickly than this, please contact me directly and we can arrange to send this to you more quickly. Thanks, Alison Alison @ rockware. com
  17. 3D I data logs how's to plot with inclination

    I'm able to get the I-Data in the Samples project installed with the program to plot correctly, so it sounds like this might be a problem specific to your project. What version of RockWorks are you using? First, please go to Edit/ Calculate XYZ values for all Boreholes. It’s possible that the xyz values in the I-Data table were not calculated correctly. If you continue to have problems, please back up your project through the File menu, and send the zip file created during the backup process to tech @ rockware. com. This backup file includes the database and your menu settings. Hopefully we'll be able to diagnose the problem by taking a look at these files. Best Regards, Alison
  18. 3d lithology model - exploded view?

    The diagram you've included looks more like a stratigraphy model than a lithology model. A stratigraphy model is composed of stacked gridded surfaces that can be displayed like this. Because lithology models are composed of block models, there isn't an easy option to display the block model as surfaces dividing the various material types. I can think of a couple of solutions for you: If your lithology can actually be modeled as stratigraphy, you might try transferring the data to the stratigraphy table and creating a stratigraphy model. This would require that your lithology be fairly simple and meet the following requirements: Each stratigraphy unit can only be listed once in each borehole. The stratigraphic units must fall in the same order in each borehole. You also might be able to use the Lithology / Superface tool to create gridded surfaces representing the tops of various material types in the lithology model. These 3D surfaces can be saved as R3DXML files and appended to a view of your 3D boreholes. This would also really require that you have fairly discrete layers within your lithology model. It’s hard to know how either of these options would work without seeing your data. If you would like us to take a look, feel free to contact us at [email protected] rockware.com to arrange for this. Best Regards, Alison
  19. Leakage modeling in CO2 storage

    It is very hard to speculate about what the problem is without know more details about the model. Do you get a specific error in the output file when the model ends? You can equilibrate a model to hydrostatic pressure, and then load the SAVE file for that model as initial conditions in a new model with identical model geometry. This topic is covered on page 63 of the PetraSim Manual, and in many of the example problems. I would recommend that you take a look at the "Initial State and Production Analyses in a Layered Model" for an example of how this work. If you continue to have problems, you are welcome to send your SIM file to [email protected] rockware.com. Thanks, Alison
  20. I don't have a good explanation of this, although it sounds vaguely familiar. You might try posting this on the LBNL TOUGHREACT forum to see if they have any suggestions. You are also welcome to send me your SIM file, and I will take a look. Best Regards, Alison
  21. Are you displaying these surfaces in 2D or 3D? I'll give you some suggestions for 3D diagrams below. If you are working with 2D diagrams, I can respond with more suggestions. One idea would be to simply change the color you’ve assigned to the Aquifer in the Aquifer Types table before creating each surface. This can be accessed in the Project Manager on the left side of the screen under the “Borehole Database” category You can change the color of a surface in RockPlot3D pretty easily as well. To do this, expand the Aquifer Model in the data tree, and drill down to the actual grid that you’d like to modify. Right click on the grid and choose Options. In the resulting Window, you can change the color of the surface. See the attached image for some more details on this. Which option you choose really depends on whether you are modeling saturated intervals that have some thickness, or if you are just looking at a single surface for each time step. If you are modeling an actual interval that has thickness, then the program will be plotting side panels for each time step as well, and the colors of these side panels can’t be edited in RockPlot3D. If this is the case, I would go with option 1.
  22. Saeid, It is not possible to apply MINC only to certain cells in a model. You might consider using the same materials for both matrix and fractures in areas where you don't want to simulate fracture flow. Best Regards, Alison
  23. How to increase the grid blocks?

    TOUGH2 currently allows for 5 spaces for the element name in the ECO2M input file. Because we've chosen to use numbers to represent element names, you are limited to this number of elements in a model. We are considering switching to an alphanumeric number scheme in PetraSim 6, so that larger models can be created. Feel free to respond with additional questions. Best Regards, Alison
  24. Seth, I can think of a couple of options: 1. Plot a contour map of the polygon. Perhaps a contour line for a very low concentration can be converted to a polygon table (if it is drawn as a closed polygon in RockPlot2D). To do this, select the contour line with your mouse, right click, and choose "Save to Polygon Table". 2. If this doesn't work, then you can draw a polygon on the map that covers the extents of the plume. Then, select that drawn polygon, right click, and choose "Save to Polygon Table". Once you've created a Polygon Table, it can be used to clip your solid model in the Solid Modeling Options window. Please let me know if you have other questions. Thanks, Alison
  25. Resource Status maps

    These levels are typically based on distance qualifications that are input by the user, for example Proven reserves might be within 50m of an assay interval, Probable reserves within 100m and Inferred within 200m. How you create this type of map really depends on whether you are doing 2 dimensional or 3D dimensional reserve estimates, and whether your boreholes are vertical or non-vertical. If you could tell me what menu item you are using for the reserve estimate (I-Data Volumetrics? Solid Extract Solid?), I’d be happy to send you some instructions. Thanks, Alison
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