pig (pipeline inspection gadget)
gathering station
gas processing
gas arc welding
gas naphtha (hexane-heptane fraction)
exploration
upstream
oil and gas exploration and production
plugging
expandable plug
pig (pipeline inspection gadget)
gathering station
gas processing
gas arc welding
gas naphtha (hexane-heptane fraction)
exploration
upstream
oil and gas exploration and production
plugging
expandable plug