The present invention is directed to incrementing a well service rig in such a manner that activity-based and/or time-based data for the well site is recorded. The acquired data can be transmitted via wired, wireless, satellite or physical to a data center preferably controlled by the work-over rig owner,...http://www.google.fr/patents/US7006920?utm_source=gb-gplus-shareBrevet US7006920 - Activity data capture system for a well service vehicle
Activity data capture system for a well service vehicle
