Process and apparatus for continuously lining a tunnel with...

Process and apparatus for controlling the water supply to...

Process and apparatus for cutting rock

Process and apparatus for enhanced hydrocarbon recovery

Process and apparatus for groundwater extraction using a...

Process and apparatus for handling/steering at least one...

Process and apparatus for injection of oxidant and liquid...

Process and apparatus for logging of non eruptive producing...

Process and apparatus for monitoring and controlling the...

Process and apparatus for purification of contaminated...

Process and apparatus for recovering an oil-enriched product...

Process and apparatus for recovering an oil-enriched product...

Process and apparatus for the recovery of hydrocarbons from...

Process and apparatus for the recovery of hydrocarbons from...

Process and apparatus for the underground gasification of...

Process and apparatus to improve reliability of pinpoint...

Process and barrier for the containment of wastes

Process and composition for cementing wells passing through...

Process and composition for inhibiting scale deposition

Process and composition for the secondary recovery of...