# US 5,706,863 A · Pipe section having padeye attachments

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- Number: US 5,706,863 A
- Document ID: US5706863A
- Status: Granted
- Kind: A
- Application number: 08/532,249
- Filed: 1995-09-22
- Granted: 1998-01-13
- Earliest claimed: 1995-09-22
- Assignees: Premiere, Inc.
- Inventors: Lee Matherne; Tommy A. Hebert; John D. Jeter
- Web page: https://patentgrep.com/patent/US5706863A

## CPC

- E21B 19/02: Rod or cable suspensions
- B23K 9/326: {Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels}
- B23K 31/02: relating to soldering or welding
- B23K 37/003: Cooling means for welding or cutting
- E21B 23/0417: {Down-hole non-explosive gas generating means, e.g. by chemical reaction}
- B23K 2101/06: Tubes
- B23K 2101/10: Pipe-lines
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM

## 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.

## Claims

### Claim 1

An improved pipe section weldment for attaching by welding, in longitudinal series, to a vertical pipe string, said weldment comprising:
a. an elongated pipe section, and
b. at least one improved padeye welded to the outside surface and near an end of said pipe section, said padeye comprising: an elongated generally flat plate having opposed faces bounded by sides, a first side welded to said pipe and being divided into a first and a second welded zone by an opening extending radially some distance into said plate, a second side defining the end of said padeye oriented toward the nearest end of said section, a third side to define the greatest radial distance from the axis of said section, a fourth side opposite said second side and providing a rest surface for axial support of said section, and a transverse hole penetrating said faces to receive a bolt for a shackle.

### Claim 2 (depends on 1)

The improved weldment of claim 1 wherein said opening and said hole are combined into one elongated opening.