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FAQ: Frequently Asked Questions and Troubleshooting


This section lists the most frequently asked questions and inquiries we receive. Most installation issues can be fixed by following the answers. Please feel free to email or contact us if your question is not in this list.


  1. Question: When I'm downloading and installing a GeolOil license, I get the error message:
    "This XML file does not appear to have any style information associated with it." Is there something wrong with GeolOil?
    Answer: Please click here

  2. Question: I installed GeolOil successfully. However when I open the desktop icon to run it, I get a severe warning message saying:
    "Running this application may be a security risk". What should I do?
    Answer: Please click here

  3. Question: I have installed successfully GeolOil and have run it many times, but some times I get the error message:
    "Server connection failed. You may have an unstable internet connection, or some servers are temporarily down". Is there a work around to this?
    Answer: Please click here

  4. Question: I tried to install a GeolOil 64 bits version, but I got the following fatal error messages:
    "Error: Could not create the Java Virtual Machine."
    "Error: A fatal exception has occurred. Program will exit."
    Answer: Please click here

  5. Question: GeolOil was running perfectly, but it now fails to authenticate the software, and it is throwing messages like: "java.security.cert.CertStore.getCRLs(Unknown Source)"
    Answer: GeolOil is a digitally signed and authenticated software. This certification comes from third party reputable companies which ensure all the time that any licence you download and run from our website is genuine and not fake. During the updating and downloading processes, your machine "asks" to certification servers to verify and authenticate its GeolOil digital signature. This requires a good internet connection. Some companies have network firewalls that wrongly block servers from Thawte or Symantec, and then the authentication process fails and the licence won't start.


    If you have purchased a GeolOil perennial licence, you may ask to get an standalone executable license with a dongle. This allows to run GeolOil in remote locations without internet connections and overcome any network firewalls.

  6. Question: Why my LAS file takes so long to upload or plot? Why so slow?
    Answer: Usually it is a very easy problem to fix. There are some users that carry LAS files on flash drives and work on them as file systems. Don't do that. Just copy the files to a hard drive or solid state drive and work from them. That improves dramatically the reading and writing speed.


    Other users have large LAS files that record curve information almost from the well surface and try to make a gigantic whole plot at a large zoom or resolution scale. This problem might exhaust the machine's RAM memory in some cases. To fix it, start with a low zoom resolution display, say 2:1 (In Display -> Step 1 -> Lower Processing Panel, Zoom resolution box), and then select the shallowest and deepest MD depths you need to plot and put these in the boxes: Minimum Depth for display, and Maximum Depth for display). This also will improve dramatically the processing speed.

  7. Question: Why GeolOil does not recognize European comma formatted numbers like PI = 3,1415927
    Answer: GeolOil only uses US and Canada formatted real numbers, use instead 3.1415927. Also, never type separators for thousand units, like 1,654.87, just use 1654.87

  8. Question: Some times, when I run my GeolOil licence I get the message that an optional update is available. Is this normal?
    Answer: Yes. GeolOil is updated for improvements and bug fixes frequently. Just accept the update without hesitation. You won't loose your licence. If for some reason the downloading process aborts, the former stored version of the software will run. In other cases, software updates are mandatory and the system will start to download and update your licence automatically.

  9. Question: I am working on a project with a lot of very big LAS files, so I installed GeolOil 64 bits to handle more memory, but the GeolOil "G" desktop icon does not appear. Why?
    Answer: It seems to be an erratic bug either of Windows, or perhaps Java. Some times occurs, some times doesn't. If you can't fix the problem, you may want to switch to the standard 32 bits version, without loosing your licence. That offers the best compatibility among several platforms. However, we encourage you to try a 64 bits installation if you really need it.

  10. Question: Does GeolOil run on MAC OS? On Linux?. Does GeolOil run for Tablets?
    Answer: Although GeolOil is fully tested to run virtually on all modern versions of Windows, we have done successful tests on Macintosh and Linux. However, we only guarantee that GeolOil will run seamless on Windows. In spite of that, we encourage MAC users to test GeolOil a with demo licence. Chances are that it will run correctly. Regarding Tablets, GeolOil don't run on Tablets.




Some answer details


  1. Question: When I'm downloading and installing a GeolOil license, I get the error message:
    "This XML file does not appear to have any style information associated with it."

    Google Chrome error message when installing GeolOil



    Answer: Messages like this appear when you are downloading GeolOil software through some web browsers like Google Chrome or MAC Safari. For those browsers you may need first to save the link, and after that, run the link outside the browser.

    If you use Mozilla's FireFox or Microsoft Internet Explorer, the downloading and installation process should run seamless, provided that Java-8 is correctly installed in your machine.


  2. Question I installed GeolOil successfully. However when I open the desktop icon to run it, I get a severe warning message saying:
    "Running this application may be a security risk"

    Severe warning message when trying to run GeolOil without an internet connection



    Answer: This warning message appears if you are trying to run GeolOil without a stable internet connection. All GeolOil software is digitally signed through a Trusted Certification Authority. Any time you run GeolOil, it connects to a server asking to verify the GeolOil digital signature to make sure it really comes from GeolOil Corporation instead of being a fake or pirate copy. If the internet connexion fails, there is no way to verify the digital signature and displays the message.

    You must have an alive internet connection to run GeolOil. Some clients that need to travel to remote well sites where there is not an internet connection, will need to purchase a perennial or permanent licence without expiration date.

    If you are running GeolOil through a stable internet connection, you will get a portal window message like this:

    GeolOil portal message window



    This is the normal "Blue Shield Information" portal window that asks to run GeolOil. It appears when Java has successfully verified the publisher's (GeolOil) digital signature. You may click on the "More Information" message to retrieve more information on the digital signature and its certification authority. When you get this portal window, you can be absolutely sure that the software really comes from GeolOil Corporation and is not a fake or pirate copy.


  3. Question: I have installed successfully GeolOil and have run it many times, but some times I get the error message:
    "Server connection failed. You may have an unstable internet connection, or some servers are temporarily down".

    Severe warning message when trying to run GeolOil without an internet connection



    Answer This message appears when you have a leased or demo licence (non-perennial), and the internet connection failed or some servers are down.

    There is no way to overcome this problem and some features of the software may become temporarily blocked. All GeolOil leased and demo licences verifies in real time its expiry date and licence serial. If a server connection fails, GeolOil won't be able to verify that the licence is legitimate. If you have purchased a perennial licence, this error message won't appear.


  4. Question: I tried to install a GeolOil 64 bits version, but I got the following fatal error messages:
    "Error: Could not create the Java Virtual Machine."
    "Error: A fatal exception has occurred. Program will exit."

    Error: Could not create the Java Virtual Machine



    Answer This message typically appears when you have tried to install a GeolOil 64 bits version to run on a 32 bits Java Virtual Machine.

    The GeolOil 64 bits program will try to allocate memory that can't be managed by the 32 bits Java Virtual Machine memory handler. Even if you have a powerful 64 bits machine hardware and have successfully installed Java for 64 bits, chances are that there was an older Java 32 bits version already installed.

    The two 32 and 64 bits Java versions might collide to run the program and then the standard Java 32 bits version takes control as default and fails. There are two ways to fix this issue:

    1. Firstly remove the 64 bits GeolOil program (using the [Java Control Panel] -> [View], etc.), and then remove the 64 bits Java installation (using the [Windows Control Panel] -> [Programs and features], etc.)

      Once both GeolOil and Java 64 bits installations are removed, reinstall a GeolOil 32 bits version on top of a fresh and updated 32 bits Java installation. Certainly this should fix the problem at the price of memory limitations when working with really huge files and projects. In many cases, a 32 bits installation will suffice. If you really need to exploit the maximum capabilities of your machine, consider the next solution:

    2. Firstly remove the 64 bits GeolOil program (using the [Java Control Panel] -> [View], etc.). Secondly, remove the 64 bits Java installation (using the [Windows Control Panel] -> [Programs and features], etc.). Thirdly, remove any older remaining 32 bits Java installations.

      Once the 64 bits GeolOil program and all pre-existing 64 and 32 bits Java installations are removed, install a new fresh and updated JDK Java Developer Kit 64 bits version, and on top of that, reinstall GeolOil for 64 bits. This usually fix the problem and lets you to use all the power of your 64 bits machine hardware memory. However, in very few cases, some old Java based software, might need to be run on 32 bits systems. In those cases, apply the solution (a).





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