Electrically operated actuation tool for subsea completion...
Fail safe surface controlled subsurface safety valve for use...
Freeze proof control center for submersible pumps
Full bore variable flow control device
Geomechanical probe for a drilling well
Hydrostatic tool with electrically operated setting mechanism
Installation for testing a well and a process for use thereof
Magnetic casing depth marker
Magnetic sensing device
Measuring assembly comprising means for orienting a part of the
Multilateral well and electrical transmission system
Piloting actuator valve for subterranean flow control
Piloting actuator valve for subterranean flow control
Position indicator for downhole tool
Probe and its multidirectional anchoring device in a well
Replaceable consumable erosion detector
Single line sliding sleeve downhole tool assembly
Single line sliding sleeve downhole tool assembly
Sucker rods
Valve apparatus