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Tom Meuzelaar

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Everything posted by Tom Meuzelaar

  1. Sedimentary clay reactions

    Hi Craig: Your question is fairly broad in scope, so I will point you in 3 general directions. Other users that have expertise with systems of your type may wish to fill in additional details: For reacting a suite of minerals, a good place to start is the Reaction Modeling guide, p.13, with the section on titration paths. The default thermodynamic database in GWB has an upper temperature limit of 300C and is configured for 1atm. Some have gone to the effort of extending them to higher pressures, but for the lithostatic pressures of most geologic applications, changes in the log K values for (most) data at higher pressures are insignificant relative to the inherent error range in the default log K measurements. For high salinity datasets (ionic strength > .3), you'll need to make a choice as to which activity model you are going to be using. The default database uses an extended form of the Debye-Huckel, but GWB comes with datasets that allow you to use Pitzer formulations as well. However, the datasets for higher ionic strengths have significant limitations, and should be used with great caution because of the empirical nature of the virial techniques employed. You will want to refer to the Essentials Guide, p. 68. I hope this is of help. Tom Meuzelaar RockWare, Inc.
  2. Importing from Modflow

    Hi Adam: Have you already looked at the Appendix "Importing from Modflow" in the v7 Reactive Transport Modeling Guide? It gives the following information regarding the unit identifier in section B.2: When you run Modflow, you supply various input files, including a discretization file. When it runs, the program can write among other datasets a budget file. You should give the discretization file a suffix .dis, the budget file, .bud. The discretization file contains information about the finite difference domain and the time stepping in the Modflow model. The budget file is a binary dataset containing information about the flow field. In setting up yourModflow simulation, observe the following guidelines: The budget file needs to contain data describing flow among the nodal blocks. Specify the unit identifier for the budget file as the value for the IxxxCB variable, where “xxx” is the flow package in use. The variable, for example, might be IBCFCB, ILPFCB, and so on. The budget file also should contain data for nodal block flows resulting from the external stresses, such as wells, recharge, evapotranspiration, and so on in the simulation. To set Modflow to write these data, you specify in the input file for the package in question the unit identifier for the budget file. For a package “xxx”, set variable IxxxCB (e.g. IWELCB, IRCHCB, IETSCB, etc.) to the unit identifier. Let me know if that is of help. Regards, Tom Meuzelaar RockWare, Inc.
  3. Dear GWB users: Craig's new book, Geochemical and Biogeochemical Reaction Modeling, is now available. A copy of the text ships with every new copy of GWB Standard and GWB Pro. Those wishing to purchase a separate copy of the text can do so at Amazon (currently discounted 20%). A detailed description can be found here. Regards, Tom Meuzelaar RockWare, Inc.
  4. Charge balancing

    Hi Pierre: Sorry for the delay in response- we've been working hard with getting the new RockWare website up, and restoring the forum back to normalcy. A faraday is just a mole of charge. Different people interpret fractional charge imbalance in different ways: relative to total charge on cations or anions, the average of the absolute values of those number, total charge on ions of charge like or opposite to the charge imbalance, and so on. If you turn off the charge balance option, React simply proceeds forward with an imbalanced solution. I hope that is of some help. Regards, Tom Meuzelaar RockWare, Inc.
  5. Dear GWB users: We are pleased to announce a workshop in Vancouver, Canada for GWB Standard and Professional users, concurrent with the 2008 Goldschmidt Conference. The July 10-11 workshop is designed for: Current users of GWB Standard and GWB Professional who wish to become more familiar with the software's interface and features Those interested in learning detailed reaction path modeling (using redox disequilibrium, kinetics, surface complexation and microbial metabolism) Those interested in learning the basics of 1D/2D reactive transport modeling Current users of GWB Essentials who are considering upgrading to GWB Standard or GWB Professional Registration fees are $899 (commercial) / $699 (academic). Students can register on stand-by for $299. For all the details, visit the RockWare website here. Please don't hesitate to contact me with any questions. Regards, Tom Meuzelaar RockWare, Inc. 2221 East Street Golden, CO 80401 ph. 303 278 3534 x104 email: [email protected]
  6. The threads in this forum are intended as a Quick Start Guide for new users who wish to get up and running quickly. The IPB portal has an additional Help guide which covers numerous additional topics that allow you to explore the rich feature set available with the IPB forum software. To access the Help guide, look for the Help link at the top right of your screen: Here is a small sampling of some of the additional options covered in the Help guide: Cookies and cookie usage Recovering lost or forgotten passwords Searching Topics and Posts Your Personal Messenger My Assistant Calendar Member List Again, this is just a small sampling....
  7. When someone posts a new topic in the software forum of interest to you (ie. the PetraSim forum, the RockWorks forum etc.) you can use the Subscribe option to to receive instant email notification when the new topic is posted. To do this, navigate to your forum of interest... ....and look for the Forum Options drop down menu (located in the upper right corner of the section displaying current topics for that forum). Select the Subscribe to this forum option: On the next screen, select the Immediate Email Notification option: Now click on the Proceed button... ... and you will receive an email when someone posts a new topic in that forum. IMPORTANT: you must subscribe to every forum or subforum for which you wish to receive new topic notification. Want to learn more about the RockWare Support Forum? Visit the next thread: additional help topics.
  8. If you post a new topic, or post a message in a thread that another user has created, you may want to receive email notification whenever someone else responds with a post. To receive notification, find the My Controls link towards the upper right of your screen: On the left side of the menu, under Options, choose Email Settings: Under Board Preferences, check the Enable 'Email Notification' by Default? checkbox, and select Immediate Email Notification from the drop-down box: Click on the Amend my email settings button: You are now set to receive email notification when someone else replies to your topic. If you want to receive notification when someone else starts a new topic in your forum of interest, visit the next thread called: Get instant notification when someone else starts a new topic.
  9. If you want to include datasets, images or sample files with your post to help you more clearly describe your support issue, look for the Attachments section before clicking on the Post New Topic button or if you've already posted your message, by using the Full Edit option (refer back to the previous thread called Posting a Message for more information). The Attachments section is located immediately below and to the left of the text area you used to describe your support issue: In the far right of this section, look for the Browse button. Clicking on Browse will allow you to select the first attachment from your hard drive: Once you've selected your file, click on Upload, and you'll see the following confirmation that your attachment has uploaded successfully: To select additional attachments, repeat the above process. You'll be able to view and manage all your attachments via the Manage Current Attachments drop-down box: Once finished, click on the Post New Topic button, and your attachments will be available for others to view/download. Once you've created a new post, you'll probably want to receive notification when someone has posted a reply. For instructions on receiving email notification, visit the next thread: How to get instant notification when someone responds to your post.
  10. To post your own message, go to the RockWare Support Forum - if you are not logged in, you will see the following screen: Click on the Log In button, enter your username and password, and you should see confirmation that you are now logged in: Next, navigate to the forum where you wish to post your message, and click on the New Topic button, found on the right side of your screen (below the list of subforums, and above the list of message threads): The rest is simple- fill in a Topic Title, and enter the content of your message in the white textbox area. You'll note there are plenty of options for editing and formatting your post: Finally, click on the Post New Topic button (or Preview Post if you want to see how your message looks first), and you're done! You should now see your message displayed in the forum you chose. Once the message is posted, you can still add/remove/modify content- just located the Edit button below and to the right of your message: For instructions on using attachments in your thread, visit the next thread: Creating attachments.
  11. If you are new to the RockWare support forum, you'll want to start by creating a new user account. When you first visit the forum, you'll see a Welcome Guest message near the top: You can start creating a new account by clicking on the Register button. On the screen that follows, read the rules and conditions, fill in the checkbox, and click on the Register button: On the next screen, enter your username, email address, password, industry, sector and program of interest. Then put in the security code displayed in the image towards the bottom and click on Submit my registration: The confirmation screen that follows... ...will tell you that you'll need to complete your registration by clicking on the Activation link in an email sent to you by the Support forum. The Activation email will look somewhat like the following- you must activate your account before you can post messages! After activating your account via email, you are ready to begin posting messages to the Support Forum. To learn how to do this, visit the next thread: Posting a Message.
  12. Dear GWB Users: We have released GWB 7.0.3 which addresses the following issues: Correct problem in X1t and X2t arising when redox state of the inlet fluid is constrained using Eh Allow very long runs to complete if screen is locked or users switched Fix window positioning if second screen is removed from a dual screen display Fix problem labeling units in table output from Gtplot and Xtplot Remove spurious error message produced when setting pH by charge balance Improve convergence when specifying Eh or pe as a constraint Improvements to Remote Control feature Resolve all known issues with 7.0 through 7.0.2. All current GWB Essentials, Standard and Pro version 7 users can download the GWB 7.0.3 here. Please let me know if you have any questions. Regards, Tom Meuzelaar RockWare, Inc.
  13. Dear RockWare Support Forum User: Due to a critical hard drive failure on our web server, we recently lost one and a half years of forum data (posts, threads, data files – everything!). We were unable to restore the forum to a more recent state from our backups. As a result, all forum data from July 2006 through December 2007 is no longer accessible. Additionally, anyone who registered to the forum as a new user will need to register again. RockWare will take additional steps to prevent this from reoccurring in the future. We apologize for this inconvenience. Sincerely, RockWare, Inc.
  14. Dear RockWare Support Forum User: Due to a critical hard drive failure on our web server, we recently lost one and a half years of forum data (posts, threads, data files – everything!). We were unable to restore the forum to a more recent state from our backups. As a result, all forum data from July 2006 through December 2007 is no longer accessible. Additionally, anyone who registered to the forum as a new user will need to register again. RockWare will take additional steps to prevent this from reoccurring in the future. We apologize for this inconvenience. Sincerely, RockWare, Inc.
  15. Dear RockWare Support Forum User: Due to a critical hard drive failure on our web server, we recently lost one and a half years of forum data (posts, threads, data files – everything!). We were unable to restore the forum to a more recent state from our backups. As a result, all forum data from July 2006 through December 2007 is no longer accessible. Additionally, anyone who registered to the forum as a new user will need to register again. RockWare will take additional steps to prevent this from reoccurring in the future. We apologize for this inconvenience. Sincerely, RockWare, Inc.
  16. Dear RockWare Support Forum User: Due to a critical hard drive failure on our web server, we recently lost one and a half years of forum data (posts, threads, data files – everything!). We were unable to restore the forum to a more recent state from our backups. As a result, all forum data from July 2006 through December 2007 is no longer accessible. Additionally, anyone who registered to the forum as a new user will need to register again. RockWare will take additional steps to prevent this from reoccurring in the future. We apologize for this inconvenience. Sincerely, RockWare, Inc.
  17. Dear RockWare Support Forum User: Due to a critical hard drive failure on our web server, we recently lost one and a half years of forum data (posts, threads, data files – everything!). We were unable to restore the forum to a more recent state from our backups. As a result, all forum data from July 2006 through December 2007 is no longer accessible. Additionally, anyone who registered to the forum as a new user will need to register again. RockWare will take additional steps to prevent this from reoccurring in the future. We apologize for this inconvenience. Sincerely, RockWare, Inc.
  18. Dear RockWare Support Forum User: Due to a critical hard drive failure on our web server, we recently lost one and a half years of forum data (posts, threads, data files – everything!). We were unable to restore the forum to a more recent state from our backups. As a result, all forum data from July 2006 through December 2007 is no longer accessible. Additionally, anyone who registered to the forum as a new user will need to register again. RockWare will take additional steps to prevent this from reoccurring in the future. We apologize for this inconvenience. Sincerely, RockWare, Inc.
  19. Downhole Explorer

    Chris: Earthworks support is handled directly via the developer, Datamine- you'll need to contact the office that is within your region: http://www.datamine.co.uk/Worldwide/worldwide_home_page.htm Regards, Tom Meuzelaar RockWare, Inc.
  20. Maxipit - geological model

    You'll need to contact the Datamine office that is within your region: http://www.datamine.co.uk/Worldwide/worldwide_home_page.htm
  21. Maxipit - geological model

    Hi Almaz: MaxiPit support is handled directly by the developer- do you know how to get in touch with them? Sincerely, Tom Meuzelaar RockWare, Inc.
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