Coated mixing device for hydrocarbon fluid storage containers to combat mixing abrasion

Patent metadata

Field	Value
Publication number	US-10343124-B2
Application number	US-201415102617-A
Country	US
Kind code	B2
Filing date	Mar 25, 2014
Priority date	Feb 28, 2014
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A storage container for hydrocarbon fluid includes a mixing device having a sacrificial coating to protect against abrasion of the protective coating along the container wall during mixing.

First claim

What is claimed is:

1. A storage container to store hydrocarbon fluid, the storage container comprising:
a working space in which hydrocarbon fluid is stored, the working space having a protective coating; and
a mixing device positioned inside the working space, the mixing device having a sacrificial coating that engages the protective coating,
wherein the mixing device is a sphere.

2. A storage container as defined in claim 1 , wherein the mixing device is a plurality of spheres having different sizes.

3. A storage container as defined in claim 1 , wherein:
the protective coating is impermeable to H 2 S adsorption; and
the sacrificial coating is a polymer.

4. A storage container as defined in claim 3 , wherein the polymer is polyether ether ketone (“PEEK”) or Teflon.

5. A method for storing a hydrocarbon fluid, comprising:
placing hydrocarbon fluid in a working space of a storage container, the working space having an protective coating;
mixing the hydrocarbon fluid using a mixing device positioned inside the working space, the mixing device being a sphere having a sacrificial coating thereon that engages the protective coating; and preventing abrasion of the protective coating by the mixing device.

6. A method as defined in claim 5 , wherein a plurality of spheres are utilized as the mixing device.

7. A method as defined in claim 6 , wherein the spheres are different sizes.

8. A method as defined in claim 5 , further comprising preventing adsorption of H 2 S using the protective coating.

9. A method for manufacturing a storage container to store hydrocarbon fluid, the method comprising:
providing a working space in which hydrocarbon fluid is stored, the working space having a protective coating; and
providing a mixing device positioned inside the working space, the mixing device being a sphere having a sacrificial coating thereon that engages the protective coating.

10. A method as defined in claim 9 , wherein the mixing device is provided as a plurality of spheres.

11. A method as defined in claim 10 , wherein the spheres are different sizes.

12. A method as defined in claim 9 , wherein:
the protective coating is provided as a coating impermeable to H 2 S adsorption; and
the sacrificial coating is provided as a polymer.

13. A method as defined in claim 12 , wherein the polymer is provided as polyether ether ketone (“PEEK”) or Teflon.

14. A storage container to store hydrocarbon fluid, the storage container comprising:
a working space in which hydrocarbon fluid is stored, the working space having a protective coating; and
a mixing device positioned inside the working space, the mixing device having a sacrificial coating that engages the protective coating,
wherein the mixing device is a vortex ring comprising:
a top surface;
a bottom surface; and
a side surface,

wherein the sacrificial coating is positioned along edges of the vortex ring, the sacrificial coating comprising:
a first coating extending over a portion of the top surface and a portion of the side surface; and
a second coating extending over a portion of the bottom surface and a portion of the side surface.

15. A storage container as defined in claim 14 , wherein:
the protective coating is impermeable to H 2 S adsorption; and
the sacrificial coating is a polymer.

16. A storage container as defined in claim 15 , wherein the polymer is polyether ether ketone (“PEEK”) or Teflon.

17. A storage container to store hydrocarbon fluid, the storage container comprising:
a working space in which hydrocarbon fluid is stored, the working space having a protective coating; and
a mixing device positioned inside the working space, the mixing device having a sacrificial coating that engages the protective coating,
wherein the mixing device is a vortex ring comprising:
a top surface;
a bottom surface;
a side surface; and
an annular groove positioned along the side surface,

wherein the sacrificial coating is positioned inside the annular groove and extends out beyond the side surface to engage the protective coating such that the side surface does not engage the protective coating.

18. A storage container as defined in claim 17 , wherein:
the protective coating is impermeable to H 2 S adsorption; and
the sacrificial coating is a polymer.

19. A storage container as defined in claim 18 , wherein the polymer is polyether ether ketone (“PEEK”) or Teflon.

20. A method for storing a hydrocarbon fluid, comprising:
placing hydrocarbon fluid in a working space of a storage container, the working space having a protective coating;
mixing the hydrocarbon fluid using a mixing device positioned inside the working space, the mixing device having a sacrificial coating that engages the protective coating,
wherein the mixing device is a vortex ring comprising:
a top surface;
a bottom surface; and
a side surface,

wherein the sacrificial coating is positioned along edges of the vortex ring, the sacrificial coating comprising:
a first coating extending over a portion of the top surface and a portion of the side surface;
and a second coating extending over a portion of the bottom surface and a portion of the side surface; and preventing abrasion of the protective coating by the mixing device.

21. A method as defined in claim 20 , further comprising preventing adsorption of H2S using the protective coating.

22. A method for manufacturing a storage container to store hydrocarbon fluid, the method comprising:
providing a working space in which hydrocarbon fluid is stored, the working space having a protective coating; and
providing a mixing device positioned inside the working space, the mixing device having a sacrificial coating that engages the protective coating,
wherein the mixing device is a vortex ring comprising:
a top surface;
a bottom surface; and
a side surface,

wherein the sacrificial coating is positioned along edges of the vortex ring, the sacrificial coating comprising:
a first coating extending over a portion of the top surface and a portion of the side surface; and
a second coating extending over a portion of the bottom surface and a portion of the side surface.

23. A method as defined in claim 22 , wherein:
the protective coating is provided as a coating impermeable to H2S adsorption; and
the sacrificial coating is provided as a polymer.

24. A method as defined in claim 22 , wherein the polymer is provided as polyether ether ketone (“PEEK”) or Teflon.

25. A method for storing a hydrocarbon fluid, comprising:
placing hydrocarbon fluid in a working space of a storage container, the working space having a protective coating;
mixing the hydrocarbon fluid using a mixing device positioned inside the working space, the mixing device having a sacrificial coating that engages the protective coating,
wherein the mixing device is a vortex ring comprising:
a top surface;
a bottom surface;
a side surface; and
an annular groove positioned along the side surface,

wherein the sacrificial coating is positioned inside the annular groove and extends out beyond the side surface to engage the protective coating such that the side surface does not engage the protective coating; and
preventing abrasion of the protective coating by the mixing device.

26. A method as defined in claim 25 , further comprising preventing adsorption of H2S using the protective coating.

Assignees

• Halliburton Energy Services Inc

Inventors

• Irani Cyrus
• Miller Scott

Classifications

• B01F7/00041 Primary

  Operations & Transport · mapped topic

• B01F15/00844

  Operations & Transport · mapped topic

• E21B49/086

  Withdrawing samples at the surface · CPC title

• B65D25/14

  Linings or internal coatings (of containers made by folding or erecting blanks made of paper B65D5/56 {; linings for domestic water storage heaters F24H1/183}) · CPC title

• B01F13/0055

  Operations & Transport · mapped topic