Universal earth formation cutter
Universal joint assembly
Universal joint for multiple conduit system
Universal joint for multiple flowline system
Universal liner hanger apparatus
Universal machine for foundations
Universal marine diverter converter
Universal perforating gun firing head
Universal pipe injection apparatus for wells and method
Universal pressure protector for a polish rod
Universal pump holddown system
Universal rig with vertical stand for tubulars
Universal tubing hanger suspension assembly and well...
Unlocking packer setting method and device
Unplanar non-axisymmetric inserts
Unplugging brine-submerged perforations in a well
Unsintered mesh sand control screen
Up-hole overshot and safety drilling apparatus
Up-hole pump-in core barrel apparatus
Up-to-set-lock mandrel with no-go key structure and method...