Magnetic-pulse sealing of oil-well-head pipe

Mechanical shut-off valve

Method and apparatus for accurate milling of windows in well...

Method and apparatus for accurate milling of windows in well...

Method and apparatus for accurate milling of windows in well...

Method and apparatus for accurate milling of windows in well...

Method and apparatus for anchoring a perforating gun to a casing

Method and apparatus for assembling stackable gun system...

Method and apparatus for casing exit system using coiled tubing

Method and apparatus for completing a horizontal well

Method and apparatus for completing deviated and horizontal well

Method and apparatus for completing lateral channels from an...

Method and apparatus for completing lateral channels from an...

Method and apparatus for controlling a well tool suspended by a

Method and apparatus for cutting and pulling tubular and associa

Method and apparatus for cutting and retrieving casing from a we

Method and apparatus for firing borehole perforating apparatus

Method and apparatus for forming a window in a subsurface well c

Method and apparatus for forming an optimized window

Method and apparatus for forming an optimized window