Method for using a top drive with an air lift thread...

Details Method for using a top drive with an air lift thread... Method for using a top drive with an air lift thread...

2011-04-12

2011-04-12

Neuder, William P (Department: 3676)

Boring or penetrating the earth

With means to simultaneously feed and rotate tool from a...

C175S162000, C175S203000, C175S220000, C166S075110, C166S379000

Reexamination Certificate

active

07921939

ABSTRACT:
A method for using a top drive is disclosed herein. The method can include: actuating a motor to provide power to the top drive, thereby rotating a stem with a saver sub mounted to a top drive housing having a bearing disposed about the rotatable stem; grabbing, lifting, and positioning tubulars using an elevator; and suspending weight of the top drive to prevent damage to threads of the tubulars during threadable engagement and disengagement of the tubulars using an airbag of an airlift thread compensator. The method can further include: positioning a torque wrench assembly along the tubulars for connecting the tubulars using a hydraulic cylinder disposed inside a torque supporting telescoping tubes; and movably positioning a single hollow cylinder rod of the hydraulic cylinder to extend into a first and second protected area, thereby preventing axial movement of a flexible hose during operation of the torque wrench assembly.

REFERENCES:
patent: 2009/0274545 (2009-11-01), Liess et al.
patent: 2010/0101805 (2010-04-01), Angelle et al.

Affiliated with

Also associated with

Rating

Method for using a top drive with an air lift thread... 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 for using a top drive with an air lift thread..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for using a top drive with an air lift thread... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2641615