Removed section
I removed a section, including two links, which weren't directly useful:
More info can probably be attained with Pat Forage International (in particular through Gérard Roso)[1][2]
I had to search for Pat Forage - it's a drilling company, but I couldn't find anything useful.
For the final link, the server was down, so I went to archive.org: here, then translated to English. --Chriswaterguy 15:37, 21 June 2013 (PDT)