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Protective sleeve for threaded connections for expandable tubulars

a tubular and threaded connection technology, applied in the field of oil and gas exploration, can solve the problems of inability to guarantee the reliability of the existing method of radially expanding and plastically deforming tubular members coupled to one another by threaded connections, and the damage of threaded connections

Inactive Publication Date: 2008-03-20
COSTA SCOTT +8
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution enhances the reliability of the expansion process by preventing damage to the connections, ensuring a secure threadable coupling, and maintaining circumferential tension and compression, thus improving the structural integrity and sealing of the casings.

Problems solved by technology

Existing methods for radially expanding and plastically deforming tubular members coupled to one another by threaded connections are not always reliable or produce satisfactory results.
In particular, the threaded connections can be damaged during the radial expansion process.

Method used

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  • Protective sleeve for threaded connections for expandable tubulars
  • Protective sleeve for threaded connections for expandable tubulars
  • Protective sleeve for threaded connections for expandable tubulars

Examples

Experimental program
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Embodiment Construction

[0081] Referring to FIG. 1a, a first tubular member 10 includes an internally threaded connection 12 at an end portion 14. As illustrated in FIG. 1b, a first end of a tubular sleeve 16 that includes an internal flange 18 and tapered portions, 20 and 22, at opposite ends is then mounted upon and receives the end portion 14 of the first tubular member 10. In an exemplary embodiment, the end portion 14 of the first tubular member 10 abuts one side of the internal flange 18 of the tubular sleeve 16, and the internal diameter of the internal flange of the tubular sleeve is substantially equal to or greater than the maximum internal diameter of the internally threaded connection 12 of the end portion of the first tubular member. As illustrated in FIG. 1c, an externally threaded connection 24 of an end portion 26 of a second tubular member 28 having an annular recess 30 is then positioned within the tubular sleeve 16 and threadably coupled to the internally threaded connection 12 of the en...

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Abstract

A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] The present application is the National Stage application corresponding to PCT application serial number PCT / US2003 / 10144, attorney docket number 25791.101.02, filed on Mar. 31, 2003, which claimed the benefit of the filing date of U.S. provisional patent application Ser. No. 60 / 372,632, attorney docket no 25791.101, filed on Apr. 15, 2002, the disclosures of which are incorporated herein by reference. [0002] The present application is also a continuation-in-part of U.S. utility patent application Ser. No. ______, attorney docket number 25791.93.05, filed on ______, which was a continuation-in-part of U.S. utility patent application Ser. No. 10 / 500,745, attorney docket number 25791.92.05, filed on Jul. 6, 2004. [0003] The present application is also related to the following: (1) U.S. patent application Ser. No. 09 / 454,139, attorney docket no. 25791.03.02, filed on Dec. 3, 1999, (2) U.S. patent application Ser. No. 09 / 510,913, attorney d...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B19/16E21B43/24E21B17/04E21B43/10F24J3/08
CPCE21B17/04E21B43/106E21B43/105E21B43/103
Inventor COSTA, SCOTTHOCKADAY, JOELWADDELL, KEVIN K.RING, LEVBULLOCK, MICHAELCOOK, ROBERT LANCEKENDZIORA, LARRYBRISCO, DAVID PAULJACKSON, TANCE
Owner COSTA SCOTT
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