Protective Sleeve For Expandable Tubulars

• US 20080066929A1
• Filed: 11/21/2007
• Published: 03/20/2008
• Est. Priority Date: 01/07/2002
• Status: Abandoned Application

• Current Assignee: Enventure Global Technology, LLC (Halliburton Company)
• Original Assignee: Enventure Global Technology, LLC (Halliburton Company)
• Inventors: Costa, Scott, Ring, Lev, Menchaca, Jose
• Application Number:
  US11/944,070
• Publication Number:
  US 20080066929A1
• Time in Patent Office: Days
• US Class Current: 166/380
• CPC Class Codes: E21B 17/042 Threaded
• CPC Class Codes: E21B 17/08 Casing joints
• CPC Class Codes: E21B 43/103 of expandable casings, screens, liners, or the like
• CPC Class Codes: E21B 43/105 Expanding tools specially adapted therefor
• CPC Class Codes: E21B 43/106 Couplings or joints therefor

Abstract

A protective sleeve for expandable tubulars.

Claims

1. An assembly, comprising:

a first tubular member comprising a pin member including external threads;

a second tubular member comprising a box member including internal threads coupled to the external threads of the pin member of the first tubular sleeve; and

an external sleeve coupled to and overlapping with the ends of the first and second tubular members;

wherein the external threads of the pin member of the first tubular member comprise a plurality of spaced apart groups of external threads;

wherein the internal threads of the box member of the second tubular member comprise a plurality of spaced apart groups of internal threads; and

wherein the external surface end of the pin member of the first tubular member comprises a stress concentrator.

2. A method for forming a wellbore casing, comprising:

positioning the assembly of claim 1 within a borehole that traverses a subterranean formation; and

radially expanding and plastically deforming the assembly within the borehole.

3. An apparatus, comprising:

a wellbore that traverses a subterranean formation; and

a wellbore casing positioned within and coupled to the wellbore;

wherein the wellbore casing is coupled to the wellbore by a process comprising;

positioning the assembly of claim 1 within the wellbore; and

radially expanding and plastically deforming the assembly within the wellbore.

4. A system for forming a wellbore casing, comprising:

means for positioning the assembly of claim 1 within a borehole that traverses a subterranean formation; and

means for radially expanding and plastically deforming the assembly within the borehole.

5. The assembly of claim 1 wherein, at least one of:

the interface between the first tubular member and the second tubular member, the interface between the first tubular member and the external sleeve, and the interface between the second tubular member and the external provide a fluid tight seal.

6. The method of claim 2, wherein, following the radial expansion and plastic deformation, at least one of:

the interface between the first tubular member and the second tubular member, the interface between the first tubular member and the external sleeve, and the interface between the second tubular member and the external provide a fluid tight seal.

7. The apparatus of claim 3, wherein, following the radial expansion and plastic deformation, at least one of:

the interface between the first tubular member and the second tubular member, the interface between the first tubular member and the external sleeve, and the interface between the second tubular member and the external provide a fluid tight seal.