File Extension WL2 File Format Well Logger v2.x WL2 stands for Well Logger v2.x. This was last updated in March 2012 By Margaret Rouse Browse File Extensions Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Ask a Question. Find an Answer. Ask your peers a question about this file extension. Ask a Question real-time protocol Where is the Internet Explorer console logger? Enabling the AdvanceSecurity layer (SSL) between the weblogic and oracle.