Seismic Imaging of Gas Hydrate Reservoir Heterogeneities (PhD defense)

I just found my PhD defense rehearsal and uploaded the video to youtube as a contribution to the open source education. It has been almost 3 years already…how time flies! But seriously did this guy ever spend 5 years on that topic? hmm… what is the definition of procrastination? I’ll find out after finishing some other stuff…I will.

Hitler uses finite elements

It is more a joke than a finite element description. I didn’t make it myself, just found it on youtube. If you can get all the punchlines, congratulations, you know something about Finite Element method!

Hitler uses Finite Element

Disclaimer: I don’t know any German. If you find this video offensive, please let me know.

The 12th European Conference on the Mathematics of Oil Recovery. Oxford, UK

Just got back from this conference and want to summarize it up. It is a great conference in the sense of

1. providing a larger picture for a geophysicist who only focuses on reservoir modeling from the perspective of seismology. People who handle seismic imaging of reservoir should deliver attributes or facies to others. Do not process data for the sake of processing. Make sense out of it, i.e., structure and property. Reservoir engineers are very much interested in heterogeneity of permeability and the impact on fluid flow. Seismic folks please give them a multi-dimensional, multi-variant, multi-scale heterogeneous model of permeability conditioned to all well data and seismic faceis. They will appreciate it. Because they can now (a) simulate multiple phases fluid flow in the reservoir; (b) fine tune the permeability by matching the history data (history matching); (c) make decision to drill the next borehole; and so many other things we seismologist never cared about.

2. holding at the perfect location and weather.  Oxford of Unite Kingdom of September is a really charming county. Trees are green, sky are blue, people are academic and you think what a wonderful world. I like the streets, the old college buildings, the church, the castle, the Costa Coffee store.  How I wish to became a pupil here.

I should have much more to say about this conference. Anyway, leave it till next post updating.

Reservoir engineers are very much in

Open Junweblog on Via Train

Isn’t that cool to run your own blog site and your own person website on your own PC? To experts, it may be a piece of cake. To me,  it is not. In case I forgot how I got here. I record what I did in my first blog.

Step 1
: know your settings. This is for running WordPress on Window XP 64 bit. Install 64bit versions of Apache, PHP and MySQL on Windows 64bit. Check this link for details. Here is a copy.

“Install 64bit versions of Apache, PHP and MySQL on Windows 64bit
Friday, 12 September 2008

Currently no official 64bit versions of Apache and PHP exists for Microsoft Windows. Only MySQL supports officialy 64bit Windows. If you have a 64bit version of Windows (2003/XP/Vista) and want to keep your system pure 64bit here is the solution! In this guide I will show you how to install and set up Apache 2.2 x64 web server, PHP 5.2 x64 and MySQL 5.0/5.1 x64 on Windows 2003/XP/Vista 64bit using unofficial binaries. Althought this setup has been tested successfully on Windows Vista 64bit Home Premium, I am not responsible for any damages may occur to your computer by this guide. Proceed at your own risk.
Download needed software

Download unofficial binaries for Apache x64 from
Current version (November 2008):

Download PHP x64 from
Current version (September 2008): 5.2.5

Download latest official MySQL 64bit binaries for Windows:
Install Apache 64bit

Create a folder inside your C drive and named it something like apache64. Unzip the contents of the Apache zip package you previously downloaded to folder: C:/apache64.
Edit Apache configuration file C:/apache64/conf/httpd.conf and change paths to match your system.

ServerRoot “C:/apache64”
ServerName localhost:80
DocumentRoot “C:/apache64/htdocs”
<Directory “C:/apache64/htdocs”>
DirectoryIndex index.html index.htm index.php
ScriptAlias /cgi-bin/ “C:/apache64/cgi-bin/”

If you want to set up virtual hosts uncomment (remove the “#” symbol) the line bellow and edit the hosts.conf file respectively. Setting up virtual hosts on Windows.
#Include conf/extra/httpd-vhosts.conf

Uncomment the following line to load extension mod_rewite needed by Elxis SEO PRO. Also uncomment any other lines you wish to load the corresponding Apache extensions.
LoadModule rewrite_module modules/

Open the Windows command prompt (Start -> Run/Search -> cmd) and navigate to folder C:/apache64 (CD C:apache64). Execute the following commands:

binhttpd.exe -k install
binhttpd.exe -k start

Your Apache should work. Open bin folder and double click the ApacheMonitor.exe file. An icon will be displayed in your Windows taskbar. From there you can start/stop/restart Apache easily. We set the Document root to C:/apache64/htdocs, so this is the folder where you should put your web files (Elxis CMS for example). Open your browser and go to to ensure Apache runs.
Install PHP 64bit

Create a folder inside your C drive and named it “php”. Unzip the contents of the PHP zip package you previously downloaded and copy the contents of the “php-5.2.5 (x64)” (or what ever version you downloaded) to folder: C:/php. We will install PHP as an Apache module. Open your Apache configuration file (C:/apache64/conf/httpd.conf) to tell apache to load the PHP module. Under the existing LoadModule directives add the following:
LoadModule php5_module “C:/php/php5apache2_2.dll”
AddType application/x-httpd-php .php

Also add these lines to tell Apache where PHP is located:
# configure the path to php.ini
PHPIniDir “C:/php”

Copy the following files to your Widnows system folder (C:/Windows/system32):

Copy php.ini-dist to the same folder and rename it as php.ini. Open this file to edit PHP configuration parameters.
extension_dir = “C:/php/ext/”
allow_url_fopen = Off
Load at least the following PHP extesnions by removing the “#” symbol in front of each line:
extension=php_oci8.dll (if you have Oracle database installed)
extension=php_pgsql.dll (if you have postgre database installed)

Set sendmail from e-mail address:
sendmail_from =

Some settings for MySQL:
mysql.default_port = 3306
mysql.default_host = localhost

Set the session save path to a writable (by anyone) folder in your computer. You can set this to any existing path you wish (For example C:/tmp).
session.save_path = “C:/tmp”

Restart Apache to test if your PHP is working properly.
Install MySQL 64bit

This is the easiest part of the overall procedure as we have downloaded an official 64bit msi package from MySQL. Just double click it to run the installer. Install MySQL as a service.

Nikos Timiopoulos reported us on February 14, 2009, that he had problems get connected to phpmyadmin. The solution for him was to copy libmysql.dll in C:/Windows/ directory. An alternative, and much more reccommended solution, is to use MySQL GUI tools (Query browser and Administrator).

Unless I forgotten something 🙂 your system is ready. You have a pure 64bit WAMP system, congratulations! You can now copy Elxis at C:/apache64/htdocs and run the Elxis installation wizard. If you wish to set up virtual hosts follow this guide: Setting up virtual hosts on Windows.

Written by Ioannis Sannos (datahell),
September 12, 2008″

Step 2:
download wordpress.

Step 3: Observe your PHP installation error: “Your PHP installation appears to be missing the MySQL extension which is required by WordPress.”. Check this link to fix it. Here is a copy.

“Your PHP installation appears to be missing the MySQL extension which is required by WordPress

by Cliff 8. January 2009

I was recently setting up WordPress to run locally on my development machine and when I tried to browse to the WordPress homepage locally, I recieved the error:

Your PHP installation appears to be missing the MySQL extension which is required by WordPress.

My configuration:
Windowx XP
Apache 2.2
MySQL 5.1

To correct this issue, I did the following:

1. In the Php.ini file (on my machine this is located at C:Windows):
Set extension_dir = “C:/Program Files/php-5.2.8/ext” (where php is installed on my machine)
2. uncommented (remove 😉
3. Copied libmysql.dll from php dir to system32 (C:WINDOWSsystem32 on my machine)

Hope that helps anyone with a similar issue.

Step 4: Enjoy using wordpress on your own PC.

–Junwei, 3:55pm, Aug 6
Install 64bit versions of Apache, PHP and MySQL on Windows 64bit