Electrically actuated insert safety valve

• US 8,511,374 B2
• Filed: 08/02/2011
• Issued: 08/20/2013
• Est. Priority Date: 08/02/2011
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Scott, Bruce E., Goiffon, John J.
• Primary Examiner(s): HUTCHINS, CATHLEEN R
• Application Number:
  US13/196,573
• Publication Number:
  US 20130032356A1
• Time in Patent Office: 749 Days
• Field of Search: 166/373, 166/381, 166/386, 166/66.6, 166/332.5, 166/332.8, 251/129.01, 251/129.03, 251/129.04, 137/512.2, 137/523, 137/614.19, 137/613
• US Class Current: 166/66.6
• CPC Class Codes: E21B 34/066 electrically actuated
• CPC Class Codes: E21B 34/106 the retrievable element being a secondary control fluid actuated valve landed into the bore of a first inoperative control fluid actuated valve

Abstract

A method of operating an insert safety valve in a subterranean well can include installing the insert safety valve in a flow passage which extends longitudinally through an outer safety valve, making electrical contact between the insert safety valve and an electrical connector, and operating the insert safety valve, thereby selectively permitting and preventing flow through the flow passage. An insert safety valve can include a closure assembly which selectively permits and prevents flow through a longitudinal flow passage, and at least one electrical connector which electrically connects to another electrical connector external to the insert safety valve.

Claims

1. A method of operating an insert safety valve in a subterranean well, the method comprising:

installing the insert safety valve in a flow passage which extends longitudinally through an outer safety valve;

making electrical contact between at least one first electrical connector of the insert safety valve and at least one second electrical connector; and

operating the insert safety valve, thereby selectively permitting and preventing flow through the flow passage.

2. The method of claim 1, wherein the at least one second electrical connector is disposed in the outer safety valve.

3. The method of claim 1, wherein making electrical contact is performed in response to installing the insert safety valve.

4. The method of claim 1, wherein making electrical contact further comprises exposing at least one of the first and second electrical connectors.

5. The method of claim 4, wherein exposing comprises displacing a shield.

6. The method of claim 4, wherein exposing comprises breaking a frangible shield.

7. The method of claim 4, wherein exposing is performed in response to installing the insert safety valve.

8. The method of claim 1, wherein the insert safety valve comprises an electrical actuator which operates a closure assembly.

9. The method of claim 8, further comprising connecting the electrical actuator to electrical power in response to installing the insert safety valve in the outer safety valve.

10. The method of claim 1, wherein installing further comprises rotationally aligning the first electrical connector with the second electrical connector.

11. The method of claim 1, wherein operating the insert safety valve further comprises operating the insert safety valve from a closed configuration to an open configuration in response to electrical current flowing between the second electrical connector and the insert safety valve.

12. The method of claim 1, wherein operating the insert safety valve further comprises operating multiple electrical actuators of the insert safety valve.

13. An insert safety valve, comprising:

a closure assembly which selectively permits and prevents flow through a longitudinal flow passage; and

at least one first electrical connector which makes direct electrical contact with at least one second electrical connector of an outer safety valve when the insert safety valve is positioned in the outer safety valve.

14. The insert safety valve of claim 13, wherein electrical current flow between the second electrical connector and the insert safety valve causes the insert safety valve to operate.

15. The insert safety valve of claim 13, wherein electrical current flow between the second electrical connector and the insert safety valve causes the insert safety valve to open.

16. The insert safety valve of claim 13, wherein electrical current flow between the second electrical connector and the insert safety valve causes multiple electrical actuators of the insert safety valve to operate.

17. The insert safety valve of claim 13, wherein the outer safety valve includes a shield which isolates the second electrical connector from the insert safety valve, and wherein the second electrical connector is exposed to the insert safety valve in response to installation of the insert safety valve in the flow passage.

18. The insert safety valve of claim 13, wherein electrical power is delivered to the insert safety valve in response to installation of the insert safety valve in the flow passage.

19. The insert safety valve of claim 13, wherein electrical power is delivered to the insert safety valve in response to the second electrical connector being exposed to the flow passage.

20. The insert safety valve of claim 13, further comprising an alignment device which rotationally aligns the first and second electrical connectors.

21. The insert safety valve of claim 13, further comprising an electrical actuator which operates the closure assembly.

22. The insert safety valve of claim 21, wherein electrical power is connected to the electrical actuator in response to installation of the insert safety valve in the flow passage.

23. The insert safety valve of claim 22, wherein the electrical power is connected to the insert safety valve in response to installation of the insert safety valve in the flow passage.

24. The insert safety valve of claim 13, further comprising a sensor which measures a well parameter.

25. The insert safety valve of claim 13, further comprising a sensor which detects an operating parameter of the insert safety valve.