Well tool

Details Well tool Well tool

E - Fixed Constructions

21

B

255/28

E21B 17/07 (2006.01) E21B 17/10 (2006.01)

Patent

CA 1185963

WELL TOOL ABSTRACT A well tool carried in a drill string for maintaining bottom hole contact while absorbing angular and axial shock forces of a rotating drill bit. The tool has an elongated body with pipe joint ends and includes a tubular mandrel rotationally and slideably mounted within a tubular barrel. A groove (preferably helical) and roller connection guides the mandrel from the barrel during drilling. Resilient shock absorbing members between metal guide rings are carried between stop elements on the mandrel and barrel. Shock forces are absorbed initially by the rotating/telescoping movements of the mandrel within the barrel. Excess shock forces are absorbed in the members acted on by the stop elements on further inward/outward movements of the mandrel rotating in the barrel. Unique cross- over rings (graphite-filled TeflonR) cushion the resilient members from impacts of the metal guide rings.

420462

Affiliated with

Also associated with

Rating

Well tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Well tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1255318