7
Artificial lift systems for use in oil and gas wells, comprising electric and hydraulic pumps, electric and linear motors and electric cabling and motors leads; components of artificial lift systems, namely, electric and hydraulic pumps, electric and linear motors, electric cabling and motors leads and related surface equipment
37
Oil and gas well drilling services featuring artificial lift and production services; field services, namely, installation, repair and maintenance of artificial lift systems and related components; oil and gas well treatment for enhanced oil and gas recovery from oil and gas wells
40
Custom construction of artificial lift systems and components for use in oil and gas wells
42
Engineering and design of artificial lift systems and components for use in oil and gas wells
Die Bezeichnungen wurden automatisch übersetzt. Übersetzung anzeigen