Method of earth drilling using a sealed downhole bearing...

Details Method of earth drilling using a sealed downhole bearing... Method of earth drilling using a sealed downhole bearing...

E - Fixed Constructions

21

B

E21B 4/02 (2006.01) E21B 4/00 (2006.01)

Patent

CA 2272798

A method of earth drilling with a sealed bearing assembly and a sealed bearing assembly. A first step involves providing a bearing assembly that has a bearing chamber sealed with fixed sealing assemblies of axially aligned seals, including a primary seal and back up seals. The sealing assemblies are capable of withstanding an intended pressure differential. A second step involves drilling with the earth drilling assembly in a downhole environment in which pressure within the bearing chamber is at hydrostatic pressure with the relative pressure differential caused by pumping activity being borne by the fixed sealing assemblies. The bearings and back up seals positioned within the sealed bearing chamber operate under relatively low pressure thereby prolonging bearing and seal life.

Affiliated with

Also associated with

Rating

Method of earth drilling using a sealed downhole bearing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of earth drilling using a sealed downhole bearing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of earth drilling using a sealed downhole bearing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1440006