IP Library Granted Patent US 8,950,476
Granted Patent B2
US 8,950,476 · App. 13/040,819 · Granted Feb 10, 2015

Coiled tubing deployed ESP

Inventor: Philip Head (Egham, GB)
Assignee: Accessesp UK Limited
F04B47/06
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Quick Facts
Patent No.
US 8,950,476
App. No.
13/040,819
Granted
Feb 10, 2015
Kind
B2
Abstract

According to the present invention, there is provided a well pumping system comprising a length of coiled tubing extending to the surface of the well, a first electric pump, a first electric motor, and a sealing means that seals against the side of the well. The sealing means include a first fluid path through which coiled tubing is in fluid communication with the well beneath the sealing means, and a second fluid path through which first electric pump is in fluid communication with the well beneath the sealing means.

Claims (23)

1. A well pumping system comprising:

a substantially straight length of coiled tubing extending generally vertically between an upper end at a surface of a well and a lower end;

a first electric pump and a first electric motor;

a sealing means that seals against a side of the well above the lower end of the coiled tubing;

the sealing means including a first fluid path through which the coiled tubing is in fluid communication with the well beneath the sealing means, and a second fluid path through which first electric pump extends above and below the sealing means and is in fluid communication with the well beneath the sealing means;

the coiled tubing allowing passage of a tool through the coiled tubing past the lower end of the coiled tubing below the electrical submersible pump while the tool is attached to a wireline past the lower end of the coiled tubing below the electrical submersible pump; and

a valve means including a packer portion, the valve means being disposed above the sealing means and the electric motor and electric pump but beneath the surface of the well, wherein the valve means can be activated to provide a seal against the side of the well and an outer surface of the coiled tube.

2. A well pumping system according to claim 1 wherein first electric pump and/or first electric motor are secured to the coiled tubing prior to deployment down the well.

3. A well pumping system according to claim 2 wherein the sealing means is secured to the first electric pump and coiled tubing prior to deployment down the well.

4. A well pumping system according to claim 2 wherein there is included a second electric pump and a second electric motor, the second electric pump being in fluid communication with the coiled tubing.

5. A well pumping system according to claim 1 wherein the sealing means is secured to the first electric pump and coiled tubing prior to deployment down the well.

6. A well pumping system according to claim 5 wherein there is included a second electric pump and a second electric motor, the second electric pump being in fluid communication with the coiled tubing.

7. A well pumping system according to claim 1 wherein there is included a second electric pump and a second electric motor, the second electric pump being in fluid communication with the coiled tubing.

8. A well pumping system according to claim 1 wherein the tool is a logging tool.

9. A method for installing a tool in a well, the method comprising:

providing a coiled tubing extending down a well tubing hanging from a wellhead with an upper end of the coiled tubing providing a tubing port and a lower end of the coiled tubing terminating in a stinger below or adjacent an electrical submersible pump;

attaching a lubricator to the tubing port; and

lowering a tool through the coiled tubing while the tool is attached to a wireline past the lower end of the coiled tubing below the electrical submersible pump.

10. The method of claim 9 , further comprising removing at least one seal from the coiled tubing through the upper end of the coiled tubing prior to lowering the tool through the coiled tubing.

11. The method of claim 10 , further comprising lowering or dropping the at least one seal or at least one replacement seal through the upper end of the coiled tubing to an original seal location after lowering the tool through the coiled tubing.

12. The method of claim 9 , further comprising pumping production fluid through the electrical submersible pump during installation of the tool in the well.

13. The method of claim 9 , further comprising winching the tool upward through the coiled tubing and removing the tool through the upper end of the coiled tubing.

14. The method of claim 9 , wherein the tool is a logging tool.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded May 17, 2021
From: CROWDOUT CAPITAL LLC
To: ACCESSESP LLC; ACCESSESP UK LIMITED
Reel/Frame 056259/0210 →
SECURITY INTEREST Recorded Oct 30, 2020
From: ACCESSESP, LLC; ACCESSESP UK LIMITED
To: CROWDOUT CAPITAL LLC
Reel/Frame 054219/0851 →
RELEASE OF SECURITY INTEREST Recorded Oct 26, 2020
From: COMERICA BANK
To: ACCESSESP UK LIMITED
Reel/Frame 054164/0636 →
SECURITY INTEREST Recorded Nov 2, 2016
From: ACCESSESP UK LIMITED
To: COMERICA BANK
Reel/Frame 040550/0887 →
CHANGE OF NAME Recorded Dec 23, 2014
From: ARTIFICIAL LIFT COMPANY LIMITED
To: ACCESSESP UK LIMITED
Reel/Frame 034580/0666 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED AT REEL: 025903 FRAME: 0859. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 3, 2014
From: HEAD, PHILIP
To: ARTIFICIAL LIFT COMPANY LIMITED
Reel/Frame 034523/0365 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2011
From: HEAD, PHILIP
To: ARTIFICIAL LIFT COMPANY
Reel/Frame 025903/0859 →
Continuity (1)
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