Improved spindle for mud pulse telemetry applications

Details Improved spindle for mud pulse telemetry applications Improved spindle for mud pulse telemetry applications

E - Fixed Constructions

21

B

E21B 47/18 (2006.01) E21B 47/022 (2006.01)

Patent

CA 2636573

A spindle for a mud pulse telemetry tool includes a seal section having an outer surface for contacting a lip seal of a spindle housing in which the spindle is mounted; a top section attachable to at least part of a valve assembly for generating mud pulses; and a base section having a proximal end attachable to a drive motor for moving the spindle and a distal end attachable to the top section such that the annular seal is fixed between the top and base sections. The seal section can be made of a ceramic material such as yttrium-stabilized zirconia.

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