Composite nozzles for rock bits

Details Composite nozzles for rock bits Composite nozzles for rock bits

E - Fixed Constructions

21

B

E21B 10/18 (2006.01) E21B 10/60 (2006.01) E21B 10/62 (2006.01)

Patent

CA 2159796

A composite mini-extended nozzle is disclosed that is designed to both resist erosion and be strong enough to withstand the shock of a downhole drilling environment. In addition, means are provided to shroud at least a portion of the extended nozzle to further protect a portion of the nozzle nearest the exit plane from downhole obstructions. A combination of materials used to form the nozzle may include a matrix of tungsten carbides with suitable binder joined to an outer metal jacket nozzle body. A third ceramic matrix material may be utilized to line or partially line an interior passage formed by the mini-extended nozzle and a reduced in diameter portion of the nozzle design may include a built-in fracture plane in the unlikely event the end of the nozzle hits an obstruction. The extended portion of the nozzle will shear off along this fracture plane thereby preventing a nozzle washout that likely would result in a trip out of the hole to repair the resultant damage to the rock bit.

Affiliated with

Also associated with

Rating

Composite nozzles for rock bits does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1936712