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Protective sleeve for threaded connections for expandable liner hanger

Inactive Publication Date: 2005-01-27
ENVENTURE GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] According to another aspect of the present invention, an apparatus is provided that includes a first tubular member comprising a threaded end portion; a second tubular member comprising a threaded end portion; a tubular sleeve that receives, overlaps with, and is coupled to the threaded end portions of the first and second tubular members; one or more first resilient locking members for locking the first tubular member to the tubular sleeve; and one or more second resilient

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 liner hanger
  • Protective sleeve for threaded connections for expandable liner hanger
  • Protective sleeve for threaded connections for expandable liner hanger

Examples

Experimental program
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Embodiment Construction

[0096] 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 patent filing for PCT patent application serial number PCT / US02 / 39418, filed on Dec. 10, 2002, which claimed the benefit of the filing dates of: (1) U.S. provisional patent application Ser. No. 60 / 346,309, attorney docket no. 25791.92, filed on Jan. 07, 2002, the disclosures of which are incorporated herein by reference. [0002] The present application is 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 docket no. 25791.7.02, filed on Feb. 23, 2000, (3) U.S. patent application Ser. No. 09 / 502,350, attorney docket no. 25791.8.02, filed on Feb. 10, 2000, (4) U.S. patent application Ser. No. 09 / 440,338, attorney docket no. 25791.9.02, filed on Nov. 15, 1999, (5) U.S. patent application Ser. No. 09 / 523,460, attorney docket no. 25791.11.02, filed on Mar. 10, 2...

Claims

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Application Information

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IPC IPC(8): E21B17/042E21B43/10F16L15/08
CPCE21B17/042Y10T29/4994E21B43/106E21B43/103
Inventor COSTA, SCOTTHOCKADAY, JOEL GRAYWADDELL, KEVIN K.RING, LEVBULLOCK, MICHAELCOOK, ROBERT LANCEKENDZIORA, LARRYBRISCO, DAVID PAUL
Owner ENVENTURE GLOBAL TECH LLC