Subsea system and methodology utilizing production receptacle structure

Patent metadata

Field	Value
Publication number	US-10774608-B2
Application number	US-201815882005-A
Country	US
Kind code	B2
Filing date	Jan 29, 2018
Priority date	Feb 3, 2017
Publication date	Sep 15, 2020
Grant date	Sep 15, 2020

Abstract

A technique facilitates deployment of equipment, e.g. an electric submersible pumping system, in a subsea production operation. According to an embodiment, a subsea tree assembly, e.g. a horizontal subsea tree assembly, comprises a spool body housing having a channel extending therethrough. A production receptacle structure is secured within the channel and provides a reduced internal profile for securing wellbore equipment. For example, the internal profile may be constructed to sealably receive a cable hanger used to support power cable by which an electric submersible pumping system may be suspended. The production receptacle structure also may be equipped with a production stab for interfacing with a tubing hanger located below the production receptacle structure.

First claim

What is claimed is:

1. A system for use with a subsea well, comprising:
a horizontal tree assembly having:
a spool body housing defining a channel therethrough;
a production receptacle structure slidably mounted within the channel and releasably secured within the channel, the production receptacle structure providing an internal profile for securing wellbore equipment, the internal profile having a reduced diameter relative to the diameter of the channel, the internal profile further comprising a profile abutment;
a plurality of seals positioned around the production receptacle structure to ensure sealing between the production receptacle structure and the spool body housing;
a wellbore equipment supported in the internal profile by the profile abutment, the wellbore equipment being removable and landable in the production receptacle structure; and
a cap sealably and removably mounted in the internal profile above the well equipment;
the production receptacle structure being equipped with a production stab to removably interface with a tubing hanger located below the spool body housing to enable removal and landing of the spool body housing and production receptacle structure without removing the tubing hanger.

2. The system as recited in claim 1 , wherein the wellbore equipment comprises a suspension apparatus secured within the internal profile, a power line being suspended therefrom and extending down through the tubing hanger.

3. The system as recited in claim 2 , wherein the suspension apparatus comprises a cable hanger seal along the internal profile; and the power line comprises a power cable.

4. The system as recited in claim 2 , further comprising a wellbore closure apparatus deployed along the internal profile.

5. The system as recited in claim 4 , wherein the wellbore closure apparatus comprises a plug.

6. The system as recited in claim 4 , wherein the wellbore closure apparatus comprises a valve.

7. The system as recited in claim 2 , wherein the power line is routed to the suspension apparatus laterally through a wall of the spool body housing.

8. The system as recited in claim 2 , further comprising an electric submersible pumping system suspended by the power line.

9. The system as recited in claim 1 , wherein the production receptacle structure is equipped with at least one control line coupler to interface with the tubing hanger.

10. The system as recited in claim 1 , further comprising at least one valve secured at the spool body housing, the at least one valve being positioned to provide controlled access to and from the channel.

11. The system as recited in claim 10 , wherein the at least one valve comprises a pair of valves.

12. The system as recited in claim 1 , wherein the spool body housing is landed on a tubing head spool, and the tubing hanger is located in the tubing head spool.

13. The system as recited in claim 1 , wherein the spool body housing is landed on a wellhead, and the tubing hanger is located in the wellhead.

14. A system, comprising:
a spool body housing having a lateral arm containing a pair of production valves, the spool body housing defining a generally vertical channel therethrough;
a production receptacle structure secured in the generally vertical channel and providing an internal profile of reduced diameter compared to a diameter of the generally vertical channel, the production receptacle structure extending past the lateral arm, the production receptacle structure comprising a passage through a side wall of the production receptacle structure to enable fluid communication between the internal profile and the pair of production valves, the production receptacle structure further being equipped with a production stab located below the lateral arm, the production stab being oriented to removably engage a tubing hanger positioned therebelow to enable removal and landing of the spool body housing and the production receptacle structure without removing the tubing hanger; and
a suspension apparatus secured within the internal profile to suspend a power line extending down through the tubing hanger, the suspension apparatus and the power line being removable and landable in the production receptacle structure without removing the spool body housing and the production receptacle structure from the tubing hanger.

15. The system as recited in claim 14 , wherein the suspension apparatus comprises a cable hanger sealed along the internal profile; and the power line comprises a power cable.

16. The system as recited in claim 14 , further comprising a wellbore closure apparatus disposed along the internal profile above the suspension apparatus.

17. The system as recited in claim 14 , further comprising an electric submersible pumping system suspended by the power line.

18. A method, comprising:
removably positioning a production receptacle structure in a channel within a spool body housing located at a subsea well;
sealably engaging the production receptacle structure with the spool body housing via a plurality of seals located along the channel;
suspending an electric submersible pumping system from the production receptacle structure via a removable cable hanger landed against a profile abutment located in an internal profile of the production receptacle structure; and
engaging the production receptacle structure with a tubing hanger via a production stab and a control line coupler, the production receptacle structure and the electric submersible pumping system being removable without removing the tubing hanger, the electric submersible pumping system further being independently landable in the production receptacle structure.

19. The method as recited in claim 18 , further comprising operating the electric submersible pumping system to produce a production fluid up into the internal profile and out through a lateral arm of the spool body housing.

20. The method as recited in claim 19 , further comprising positioning redundant production valves along the lateral arm.

Assignees

• Onesubsea Ip Uk Ltd

Inventors

• June David

Classifications

• E21B33/03

  Well heads; Setting-up thereof · CPC title

• E21B33/064

  specially adapted for underwater well heads · CPC title

• E21B33/0407

  with a suspended electrical cable · CPC title

• E21B43/01

  specially adapted for obtaining from underwater installations · CPC title

• E21B33/043

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