Method for joining driven pipe

Details Method for joining driven pipe Method for joining driven pipe

1997-06-09

1998-10-06

Ramsey, Kenneth J.

Metal fusion bonding

Process

Plural joints

228191, 228222, B23K 3106

Patent

active

058164790

ABSTRACT:
Improved welding method and padeye processing speeds up the connection of individual joints by peripheral fusion welding while the joint to be added stands vertically atop an existing pipe string also standing vertical in the rig floor. A plurality of welders can operate to speed up completion of the weld by removing heat from the pipe during the welding process. Heat is removed by the use of fluid cuffs near the weld area and, optionally, by using a spool within the pipe string to dispense expansion cooled air against the inner pipe wall in the vicinity of the weld. A special improved padeye is provided for welding near the pipe ends for handling. The padeye has a divided profile, a hole for a lifting shackle, and it will be accepted within the skirt of the lead system of the driving hammer. The upper end of the padeye can be cut from the pipe while the pipe is resting, on rig related structure, on the lower surface of the padeye.

REFERENCES:
patent: 4223197 (1980-09-01), Imai et al.

Affiliated with

Also associated with

Rating

Method for joining driven pipe 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 joining driven pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for joining driven pipe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-70019