Apparatus for a tubular string and method of attaching the same

Apparatus for positioning well tools in deviated well bores

Apparatus for use in cementing a casing string within a well bor

Apparatus for use in maintaining a well pipe centered within a w

Borehole centralizer with positively indexable contact arms

Casing centralizer

Casing centralizer

Casing re-entry apparatus for use in inclined oil and gas boreho

Centering apparatus

Centering device for well conduit

Centralizer

Centralizer

Centralizer

Centralizer band-collar connection

Centralizer element for well screen

Centralizer for a polished bar and/or a substance pump piston st

Centralizer for elastomer coated blast joint

Centralizer for production string including support means for co

Centralizer for well casings

Centralizer for wellbore apparatus