Acoustic well cleaner
Apparatus for pulling tools into a wellbore
Device for applying plugging mix to well walls
Device for facilitating release of stuck drill collars
Indicating ball catcher
Perforation cleaning tools
Selectively actuated vibrating apparatus connected with well bor
Sonic apparatus for augmenting fluid flow from fluid-bearing str
Sonic apparatus for cleaning wells, pipe structures and the like
Sound source for stimulation of oil reservoirs
System and apparatus for extracting oil and the like from tar sa
Tubular interior wiper
Vibratory apparatus for mining shale oil or the like
Water and ground water monitoring well surge block
Well cleaner
Well servicing system employing sonic energy transmitted down th