Oilfield tubular connection system and method

Patent metadata

Field	Value
Publication number	US-10041308-B2
Application number	US-201514963985-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Dec 9, 2015
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

A mineral extraction system including a first oilfield tubular, a second oilfield tubular to engage with the first oilfield tubular, a first flange coupled to the first oilfield tubular, a second flange coupled to the second oilfield tubular, and a plurality of fasteners to couple the first flange and the second flange.

First claim

The invention claimed is:

1. A mineral extraction system, comprising
a first oilfield tubular comprising a box connection having an axial shoulder;
a second oilfield tubular comprising a pin connection having an axial end face, the pin connection configured to threadingly engage with the first oilfield tubular within the box connection, and wherein the axial end face is configured to abut the axial shoulder when the pin connection is fully threaded within the box connection;
a first flange coupled to the first oilfield tubular;
a second flange coupled to the second oilfield tubular; and
a plurality of fasteners configured to couple to the first flange and the second flange.

2. The system of claim 1 , wherein the first flange is threaded to the first oilfield tubular, or the first flange is integrally formed with the first oilfield tubular.

3. The system of claim 2 , wherein, the second flange is threaded to the second oilfield tubular, or the second flange is integrally formed with the second oilfield tubular.

4. The system of claim 1 , wherein the first oilfield tubular is a first length of casing, and the second oilfield tubular is a second length of casing.

5. The system of claim 1 , wherein the plurality of fasteners comprises a plurality of threaded bolts.

6. A method, comprising:
threading a first oilfield tubular component to a second oilfield tubular component;
abutting a first flange of the first oilfield tubular component with a second flange of the second oilfield tubular component;
abutting an axial end surface of the second oilfield tubular component against an axial shoulder of a box connection of the first oilfield tubular component after threading the first oilfield tubular component to the second oilfield tubular component;
subsequent to abutting the first flange of the first oilfield tubular component with the second flange of the second oilfield tubular component, coupling the first flange and the second flange to a plurality of fasteners disposed about a circumference of the first flange and the second flange.

7. The method of claim 6 , wherein coupling the first flange to the second flange with the plurality of fasteners comprises threading each of the plurality of fasteners through respective apertures of the first and second flanges manually or with a hand tool.

8. The method of claim 6 , comprising threading the first oil field tubular component to the second oilfield tubular component manually or with a hand tool.

9. The method of claim 6 , comprising threading the first flange to the first oilfield tubular component or integrally forming the first flange with the first oilfield tubular component before threading the first oilfield tubular component to the second oilfield tubular component.

10. The method of claim 9 , comprising threading the second flange to the second oilfield tubular component or integrally forming the second flange with the second oilfield tubular component before threading the first oilfield tubular component to the second oilfield tubular component.

11. The method of claim 6 , comprising transferring torque from the first oilfield tubular component to the second oilfield tubular component after coupling the first flange to the second flange with the plurality of fasteners.

12. The method of claim 6 , comprising removing the plurality of fasteners from the second flange and the first flange manually or with a hand tool and subsequently unthreading the first oilfield tubular component from the second oilfield tubular component.

13. A mineral extraction system, comprising:
a first oilfield tubular, wherein the first oilfield tubular comprises a threaded box connection at a first axial end of the first oilfield tubular;
a second oilfield tubular, wherein the second oilfield tubular comprises a threaded pin connection at a second axial end of the second oilfield tubular;
a first flange threaded to the first axial end of the first oilfield tubular, wherein the first flange comprises a plurality of apertures arrayed about a first circumference of the first flange; and
a second flange threaded to the second axial end of the second oilfield tubular, wherein the second flange comprises a plurality of recesses arrayed about a second circumference of the second flange,
wherein each of the plurality of apertures is configured to align with a respective one of the plurality of recesses.

14. The system of claim 13 , comprising a plurality of fasteners, wherein each of the plurality of fasteners is configured to couple to a respective one of the plurality of apertures and a respective one of the plurality of recesses.

15. The system of claim 14 , wherein the plurality of fasteners comprises a plurality of threaded bolts configured to be coupled to the first and second flanges via a hand tool.

Assignees

• Nabors Drilling Tech Usa Inc

Inventors

• Bowley Ryan Thomas
• Coombe Brent James-William
• Genovese Cory John

Classifications

• E21B17/043 Primary

  with locking means · CPC title

• E21B17/042

  Threaded · CPC title

• F16L15/08

  with supplementary elements (F16L15/04 takes precedence) · CPC title

• F16L15/001

  with conical threads · CPC title