IP Library Granted Patent US 7,673,676
Granted Patent B2
US 7,673,676 · App. 11/696,315 · Granted Mar 9, 2010

Electric submersible pumping system with gas vent

Assignee: Schlumberger Technology Corporation
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Quick Facts
Patent No.
US 7,673,676
App. No.
11/696,315
Granted
Mar 9, 2010
Kind
B2
Abstract

A technique is provided for pumping fluids from a wellbore. An electric submersible pumping system is deployed in a wellbore on a tubing. Free gas can potentially accumulate around the electric submersible pumping system, but a gas vent is positioned to remove free gas.

Claims (36)

1. A system for producing a fluid, comprising:

an electric submersible pumping system suspended in a wellbore on a first tubing;

a second tubing deployed within the first tubing to create a first flow path between the first tubing and the second tubing and a second flow path within the second tubing, wherein fluid produced by the electric submersible pumping system is directed to one of the first and second flow paths; and

a gas inlet through which gas accumulated in the wellbore around the first tubing is directed to the other of the first and second flow paths.

2. The system as recited in claim 1 , wherein the gas inlet is coupled in fluid communication with the second flow path.

3. The system as recited in claim 1 , wherein the gas inlet is coupled in fluid communication with the first flow path.

4. The system as recited in claim 1 , further comprising a well casing and a packer positioned between the first tubing and the well casing, wherein the gas inlet is located beneath the packer.

5. The system as recited in claim 1 , further comprising a pod assembly surrounding the electric submersible pumping system, the gas inlet being placed in fluid communication with an upper region of the pod assembly to remove gas.

6. The system as recited in claim 1 , further comprising a landing profile into which the second tubing is landed within the first tubing.

7. The system as recited in claim 1 , wherein the first tubing comprises production tubing.

8. The system as recited in claim 1 , wherein the second tubing comprises coiled tubing.

9. The system as recited in claim 1 , further comprising a subsurface safety valve positioned in the gas inlet.

10. A system for producing a fluid, comprising:

an electric submersible pumping system suspended in a wellbore on a first tubing;

a second tubing deployed within the first tubing to create a first flow path between the first tubing and the second tubing and a second flow path within the second tubing, wherein fluid produced by the electric submersible pumping system is directed to one of the first and second flow paths;

a gas inlet through which gas accumulated in the wellbore around the first tubing is directed to the other of the first and second flow paths; and

a subsurface safety valve positioned in the first tubing beneath the gas inlet.

11. A method, comprising:

deploying an electric submersible pumping system into a wellbore on a tubing;

locating the electric submersible pumping system beneath a packer;

routing an internal tubing within the tubing;

decreasing the amount of gas accumulated within the wellbore and trapped directly beneath the packer along the exterior of the tubing by producing the gas through either a first flow path formed between the internal tubing and the tubing or through a second flow path within the internal tubing; and

producing a fluid with the electric submersible pumping system through the other of the first flow path and the second flow path.

12. The method as recited in claim 11 , wherein producing comprises producing fluid from the electric submersible pumping system along the first flow path.

13. The method as recited in claim 11 , wherein producing comprises producing fluid from the electric submersible pumping system along the second flow path.

14. The method as recited in claim 11 , further comprising placing a landing profile in the tubing for receiving the internal tubing.

15. The method as recited in claim 11 , wherein the packer surrounds the tubing and further comprising locating the gas inlet through the tubing and below the packer surrounding the tubing.

16. The method as recited in claim 11 , further comprising placing a subsurface safety valve in the tubing below the gas inlet.

17. The method as recited in claim 11 , wherein routing comprises routing coiled tubing.

18. The method as recited in claim 11 , wherein deploying comprises deploying the electric submersible pumping system on production tubing.

19. A method, comprising:

deploying an electric submersible pumping system into a wellbore on a tubing;

routing an internal tubing within the tubing;

decreasing the amount of gas accumulated within the wellbore along the exterior of the tubing by producing the gas through either a first flow path formed between the internal tubing and the tubing or through a second flow path within the internal tubing; and

producing a fluid with the electric submersible pumping system through the other of the first flow path and the second flow path; and

placing a subsurface safety valve in the gas inlet.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2007
From: RIVAS, OLEGARIO; KALLAS, PATRICIA A.
To: SCHLUMBERGER TECHNOLOGY CORPORATION
Reel/Frame 019396/0578 →
Continuity (1)
Related Publication 20080245525A1 · Oct 9, 2008