IP Library Granted Patent US 7,121,337
Granted Patent B2
US 7,121,337 · App. 11/142,756 · Granted Oct 17, 2006

Apparatus for expanding a tubular member

Assignee: Shell Oil Company
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,121,337
App. No.
11/142,756
Granted
Oct 17, 2006
Kind
B2
Abstract

An apparatus for radially expanding and plastically deforming a tubular member including a support member comprising a fluid passage, an expansion device for radially expanding and plastically deforming the tubular member movably coupled to the support member for longitudinal displacement relative to the support member, at least one pressure chamber defined by and positioned between the support member and expansion device fluidicly coupled to the first fluid passage, and releasable supports coupled to the support member adapted to support the tubular member, wherein the releasable supports are positioned above and below the expansion device.

Claims (60)

1. An apparatus for radially expanding and plastically deforming a tubular member, comprising:

a support member comprising a fluid passage;

an expansion device for radially expanding and plastically deforming the tubular member movably coupled to the support member for longitudinal displacement relative to the support member;

at least one pressure chamber defined by and positioned between the support member and expansion device fluidicly coupled to the first fluid passage; and

releasable supports coupled to the support member adapted to support the tubular member;

wherein the releasable supports are positioned above and below the expansion device.

2. The apparatus of claim 1 , wherein the releasable supports comprise one or more of the following:

hydraulic slips;

mechanical slips; or

drag blocks.

3. The apparatus of claim 1 , wherein the expansion device includes:

one or more annular pistons; and

an expansion cone coupled to the annular pistons.

4. The apparatus of claim 3 , wherein one or more of the annular pistons include an expansion cone.

5. The apparatus of claim 1 , wherein the at least one pressure chamber comprises at least one annular pressure chamber.

6. The apparatus of claim 1 , wherein some of the releasable supports engage a radially expanded portion of the tubular member.

7. The apparatus of claim 1 , wherein the expansion device comprises a tapered outer expansion surface having an angle of attack ranging from about 5 to 30 degrees; wherein the tapered outer expansion surface of the expansion device comprises a D2 steel; and wherein the tapered outer expansion surface of the expansion device comprises a surface hardness ranging from about 58 to 62 Rockwell C.

8. The apparatus of claim 1 , wherein the tubular member comprises a pipeline member.

9. An apparatus for radially expanding and plastically deforming a tubular member within a preexisting structure, comprising:

a support member;

a expansion device for radially expanding and plastically deforming the tubular member movably coupled to the support member for longitudinal displacement relative to the support member;

an actuator coupled to the expansion device for controllably displacing the expansion device relative to the tubular member; and

releasable supports coupled to the support member adapted to support the tubular member;

wherein the releasable supports are positioned above and below the expansion device.

10. The apparatus of claim 9 , wherein the releasable supports comprise one or more of the following:

hydraulic slips;

mechanical slips; or

drag blocks.

11. The apparatus of claim 9 , wherein some of the releasable supports engage a radially expanded portion of the tubular member.

12. The apparatus of claim 9 , wherein the expansion device comprises:

an adjustable expansion device; and

a non-adjustable expansion device.

13. The apparatus of claim 9 , wherein the expansion device comprises a tapered outer expansion surface having an angle of attack ranging from about 5 to 30 degrees; wherein the tapered outer expansion surface of the expansion device comprises a D2 steel; and wherein the tapered outer expansion surface of the expansion device comprises a surface hardness ranging from about 58 to 62 Rockwell C.

14. The apparatus of claim 9 , wherein the tubular member comprises a pipeline member.

15. An apparatus for radially expanding and plastically deforming a tubular member, comprising:

a support member comprising a fluid passage that defines a throat passage;

a expansion device for radially expanding and plastically deforming the tubular member movably coupled to the support member for longitudinal displacement relative to the support member;

at least one pressure chamber defined by and positioned between the support member and expansion device fluidicly coupled to the first fluid passage; and

releasable supports coupled to the support member adapted to support the tubular member;

wherein the releasable supports are positioned above and below the expansion device;

wherein the expansion device comprises:

an annular piston that mates with and receives the support member and is received and mates with the tubular member;

a tubular extension coupled to the annular piston; and

an annular tapered expansion cone coupled to an end of the tubular extension.

16. The apparatus of claim 15 , wherein the releasable supports comprise:

one or more hydraulic slips coupled to the support member and fluidicly coupled to the fluid passage of the support member.

17. The apparatus of claim 15 , wherein the releasable supports comprise:

one or more mechanical slips coupled to the support member and positioned below the expansion device adapted to controllably engage a radially expanded portion of the tubular member.

18. The apparatus of claim 15 , wherein the releasable supports comprise:

one or more drag blocks coupled to the support member and positioned below the expansion device adapted to controllably engage a radially expanded portion of the tubular member.

19. The apparatus of claim 15 , wherein the releasable supports comprise:

one or more hydraulic slips coupled to the support member and fluidicly coupled to the fluid passage of the support member for engaging a portion of the tubular member that has not been radially expanded;

one or more mechanical slips coupled to the support member and positioned below the expansion device adapted to controllably engage a radially expanded portion of the tubular member; and

one or more drag blocks coupled to the support member and positioned below the expansion device adapted to controllably engage the radially expanded portion of the tubular member.

20. The apparatus of claim 15 , wherein the expansion device comprises:

an adjustable expansion device; and

a non-adjustable expansion device.

21. The apparatus of claim 15 , wherein the expansion device comprises a tapered outer expansion surface having an angle of attack ranging from about 5 to 30 degrees; wherein the tapered outer expansion surface of the expansion device comprises a D2 steel; and wherein the tapered outer expansion surface of the expansion device comprises a surface hardness ranging from about 58 to 62 Rockwell C.

22. The apparatus of claim 15 , wherein some of the releasable supports engage a radially expanded portion of the tubular member.

23. The apparatus of claim 15 , wherein the tubular member comprises a pipeline member.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2017
From: COOK, ROBERT LANCE; BRISCO, DAVID P.; STEWART, R. BRUCE; RING, LEV; HAUT, RICHARD CARL; MACK, ROBERT DONALD; DUELL, ALAN
To: SHELL OIL COMPANY
Reel/Frame 042678/0659 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2010
From: SHELL OIL COMPANY
To: ENVENTURE GLOBAL TECHNOLOGY, LLC
Reel/Frame 024767/0646 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2006
From: COOK, ROBERT LANCE; BRISCO, DAVID PAUL; STEWART, R. BRUCE; RING, LEV; HAUT, RICHARD CARL; MACK, ROBERT DONALD; DUELL, ALAN B.
To: SHELL OIL COMPANY
Reel/Frame 018222/0071 →
Continuity (8)
Division 1076972600 · Jan 30, 2004
Division 0951091300 · Feb 23, 2000
Continuation In Part 0950235000 · Feb 10, 2000
Continuation In Part 0945413900 · Dec 3, 1999
Provisional Application 6012170200 · Feb 25, 1999
Provisional Application 6011961100 · Feb 11, 1999
Provisional Application 6011129300 · Dec 7, 1998
Related Publication 20050230104A1 · Oct 20, 2005