Tubing hanger running tool with integrated landing features

Patent metadata

Field	Value
Publication number	US-9540894-B2
Application number	US-201313975253-A
Country	US
Kind code	B2
Filing date	Aug 23, 2013
Priority date	Apr 9, 2010
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A system, in certain embodiments, includes a tubing hanger running tool (THRT) configured to position a tubing hanger within a wellhead. The THRT includes an integrated pressure equalization system including a tube having a first end in fluid communication with an annulus of the wellhead, and a second end in fluid communication with a control line. The integrated pressure equalization system also includes a piston disposed within the tube. The piston is configured to move within the tube to balance a pressure differential between a first fluid within the annulus and a second fluid within the control line.

First claim

The invention claimed is:

1. A system comprising:
a running tool configured to position a first component within a mineral extraction system, wherein the running tool comprises a first pressure equalization system, comprising:
a first fluid line configured to flow a first fluid;
a first piston disposed along the first fluid line; and
a first fluid line connector coupled to the first fluid line, wherein the first piston is configured to equalize pressure between the first fluid and a surrounding fluid during running of the first component via the running tool, wherein bottom of the first piston is configured to contact the first fluid and top of the first piston is configured to contact the surrounding fluid, wherein the running tool is configured to be at least partially surrounded by the surrounding fluid.

2. The system of claim 1 , wherein the first fluid line comprises a control line.

3. The system of claim 2 , wherein the first control line comprises a hydraulic line.

4. The system of claim 2 , wherein the first control line comprises a chemical injection line.

5. The system of claim 1 , wherein the first fluid line connector comprises a stab connector.

6. The system of claim 1 , wherein the running tool comprises a central bore and an annular wall extending around the central bore, wherein the first fluid line extends through the annular wall, and wherein the first piston is disposed along the first fluid line in the annular wall.

7. The system of claim 1 , wherein the first fluid line connector is configured to couple with a second fluid line connector in an axial direction.

8. The system of claim 1 , wherein the running tool comprises a gas reduction system coupled to the first fluid line.

9. The system of claim 8 , wherein the gas reduction system comprises a gas reduction line coupled to the first fluid line, a check valve coupled to the gas reduction line, and a port coupled to the gas reduction line.

10. The system of claim 1 , wherein the first component comprises a second fluid line connector coupled to a second fluid line, wherein the first and second fluid line connectors are configured to couple together during running of the first component via the running tool, and wherein the second fluid line is configured to house a second fluid.

11. The system of claim 10 , wherein the first component comprises a hanger.

12. The system of claim 10 , comprising a second component of the mineral extraction system, wherein the running tool is configured to run the first component into the mineral extraction system to couple with the second component, wherein the second component comprises a second pressure equalization system having a second piston disposed along a third fluid line.

13. The system of claim 12 , wherein the first and second components are configured to couple together the second and third fluid lines via third and fourth fluid line connectors.

14. The system of claim 13 , wherein the third and fourth fluid line connectors comprises mating stab connectors.

15. The system of claim 1 , wherein the first fluid comprises a control fluid, and the surrounding fluid comprises a completion fluid.

16. A system comprising:
a tool configured to interact with a mineral extraction system, wherein the tool comprises a pressure equalization system, comprising:
a fluid line configured to flow a fluid;
a piston disposed along the fluid line; and
a first fluid line connector coupled to the fluid line, wherein the piston is configured to equalize pressure between the fluid and a surrounding fluid during running of the tool into the mineral extraction system, wherein bottom of the piston is configured to contact the fluid and top of the piston is configured to contact the surrounding fluid, wherein the tool is configured to be at least partially surrounded by the surrounding fluid.

17. The system of claim 16 , wherein the fluid line comprises a control line.

18. The system of claim 16 , wherein the first fluid line connector is configured to couple with a second fluid line connector in an axial direction.

19. A system comprising:
a component; a running tool configured to position the component within a mineral extraction system; at least one fluid line extending through the component and the running too, wherein the at least one fluid line is configured to flow a fluid; and
a pressure equalization system, comprising:
a piston disposed along the at least one fluid line; and
a first fluid line connector coupled to the at least one fluid line, wherein the piston is configured to equalize pressure between the fluid and a surrounding fluid during running of the component via the running tool, wherein bottom of the piston is configured to contact the fluid and top of the piston is configured to contact the surrounding fluid, wherein the running tool is configured to be at least partially surrounded by the surrounding fluid.

20. The system of claim 19 , wherein the first fluid line connector is configured to couple with a second fluid line connector in an axial direction, wherein the first fluid line connector is coupled to the component or the running tool.

Assignees

• Cameron Int Corp
• Onesubsea Ip Uk Ltd

Inventors

• June David
• Santilli Claudio

Classifications

• E21B23/00 Primary

  Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) · CPC title

• E21B33/043 Primary

  specially adapted for underwater well heads ({E21B33/0407,} E21B33/047 take precedence) · CPC title

• E21B23/10 Primary

  Tools specially adapted therefor · CPC title

• E21B33/0355

  Control systems, e.g. hydraulic, pneumatic, electric, acoustic, for submerged well heads · CPC title