IP Library › Granted Patent US 11,280,417
Granted Patent B2
US 11,280,417 · App. 16/485,375 · Granted Mar 22, 2022

Chemical injection system with jay-selector

Inventors: Ibrahim El Mallawany (Spring, TX); Paul Gregory James (Spring, TX)
Assignee: Halliburton Energy Services, Inc.
F16K15/1826E21B34/16F16K1/52F16K15/025
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Quick Facts
Patent No.
US 11,280,417
App. No.
16/485,375
Granted
Mar 22, 2022
Kind
B2
Abstract

Systems for chemical injection. An example system includes a pilot valve comprising: a hydraulic piston, a poppet, and a biasing device. The system further comprises a jay-selector comprising: a rotatable jay-piston having jay-slots, and a plurality of ports. The system additionally comprises a plurality of flow restrictors.

Claims (35)

1. A system for chemical injection comprising:

a pilot valve comprising:

a hydraulic piston,

a poppet, and

a biasing device;

a jay-selector comprising:

a rotatable jay-piston having jay-slots, and

a plurality of ports; and

a plurality of flow restrictors.

2. The system of claim 1 , further comprising a second pilot valve.

3. The system of claim 2 , wherein the second pilot valve is coupled to an injection line.

4. The system of claim 1 , wherein the jay-selector further comprises a fixed guide disposed in the jay-slots.

5. The system of claim 1 , wherein the jay-selector further comprises a spring.

6. The system of claim 1 , wherein the plurality of ports are coupled to jay-selector lines capable of conveying fluid from the jay-selector to an injection line.

7. The system of claim 1 , further comprising a backflow prevention valve.

8. The system of claim 1 , wherein at least one of the flow restrictors in the plurality of flow restrictors is configured to actuate the jay-selector by creating a pressure differential across the flow restrictor.

9. The system of claim 1 , further comprising an information handling system.

10. The system of claim 1 , wherein one of the flow restrictors in the plurality is a single orifice restrictor or a multi-orifice restrictor.

11. A method for chemical injection comprising:

flowing a fluid into a chemical line coupled to a pilot valve,

increasing the fluid pressure in the chemical line to cause the pilot valve to open; wherein the opening of the pilot valve allows the fluid to flow through the pilot valve,

flowing the fluid through a jay-selector comprising:

a rotatable jay-piston having jay-slots, and

a plurality of ports; wherein flowing the fluid through the jay-selector comprises flowing the fluid through at least one of the ports in the plurality of ports,

flowing the fluid through a jay-selector line coupled to the at least one of the ports in the plurality of ports; and

flowing the fluid through an injection line.

12. The method of claim 11 , wherein the fluid is flowed through a second port in the plurality of ports and a second jay-selector line coupled to the second port in the plurality of ports.

13. The method of claim 12 , wherein the fluid flow through the second port in the plurality of ports and the second jay-selector line coupled to the second port in the plurality of ports increases fluid flow through the injection line.

14. The method of claim 11 , further comprising a second pilot valve.

15. The method of claim 14 , wherein the second pilot valve is coupled to a second jay-selector line.

16. The method of claim 11 , further comprising a plurality of flow restrictors.

17. The method of claim 16 , wherein at least one of the flow restrictors in the plurality of flow restrictors is configured to actuate the jay-selector by creating a pressure differential across the flow restrictor.

18. The method of claim 11 , wherein the pilot valve comprises a hydraulic piston, a poppet, and a biasing device.

19. The method of claim 11 , wherein the jay-selector further comprises a fixed guide disposed in the jay-slots.

20. The method of claim 11 , wherein the jay-selector further comprises a spring.

Continuity (2)
Provisional Application 62642315 · Mar 13, 2018
Related Publication 20200116269A1 · Apr 16, 2020