Vector maximizing screen

Patent metadata

Field	Value
Publication number	US-9643111-B2
Application number	US-201414200515-A
Country	US
Kind code	B2
Filing date	Mar 7, 2014
Priority date	Mar 8, 2013
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A screen panel assembly includes a screen panel and one or more raised screen components, wherein at least one of the raised screen components is disposed on the screen panel. Furthermore, each of the one or more raised screen components includes at least one inclined screen surface that defines a first plane that is oriented at a first angle relative to said screen panel. Additionally, the first plane is substantially aligned with a second plane that is oriented at a second angle relative to a third plane that is perpendicular to a displacement vector along which the screen panel assembly is accelerated by a vibratory separation device.

First claim

What is claimed:

1. A screen panel assembly, comprising:
a screen panel; and
one or more raised screen components disposed on said screen panel, each of said one or more raised screen components comprising:
an inclined screen surface that defines a first plane that is oriented at a first angle relative to said screen panel, said inclined screen surface having a front edge that is aligned with a top surface of said screen panel and is substantially perpendicular to a longitudinal axis of said screen panel, wherein said first plane is substantially perpendicular to a displacement vector along which said screen panel assembly is accelerated by a vibratory separation device; and
a wedge surface that is positioned at a back side of said raised screen component, wherein said wedge surface is adapted to disrupt a flow path of a flow of a material mixture flowing in a longitudinal direction across said screen panel by redirecting said flow around opposing sides of said raised screen component, wherein said wedge surface extends vertically from and is substantially perpendicular to said top surface of said screen panel.

2. The screen panel assembly of claim 1 , wherein said inclined screen surface further comprises a plurality of second edges that extends upward from said top surface of said screen panel.

3. The screen panel assembly of claim 1 , wherein said screen panel comprises a plurality of said one or more raised screen components.

4. The screen panel assembly of claim 1 , wherein said wedge surface is positioned on an upstream side of said raised screen component and said front edge of said inclined screen surface is positioned on a downstream side of said raised screen component opposite of said wedge surface.

5. The screen panel assembly of claim 1 , wherein said wedge surface extends vertically from said top surface of said screen panel to an upper point of said inclined screen surface.

6. The screen panel assembly of claim 1 , further comprising a plurality of side panels supporting said inclined screen surface.

7. The screen panel assembly of claim 6 , wherein each of said plurality of side panels comprises a screen surface.

8. The screen panel assembly of claim 6 , wherein said wedge surface is positioned along a back edge of two of said plurality of side panels.

9. A screen panel assembly comprising
a plurality of screen panels; and
a plurality of raised screen components disposed on each of said plurality of screen panels, each of said plurality of raised screen components comprising:
an inclined screen surface having a front edge that is aligned with a top surface of a respective one of said plurality of screen panels and a plurality of second edges that extends upward from said top surface of said respective screen panel, said front edge being substantially perpendicular to a longitudinal axis of said respective screen panel, wherein said inclined screen surface defines a first plane that is oriented at a first angle relative to said respective screen panel and is substantially perpendicular to a displacement vector along which said screen panel assembly is accelerated by a vibratory separation device; and
a wedge surface that is positioned at a back side of said raised screen component, wherein said wedge surface is adapted to disrupt a flow path of a flow of a material mixture flowing in a longitudinal direction across said respective screen panel by redirecting said flow around opposing sides of said raised screen component, wherein said wedge surface extends vertically from and is substantially perpendicular to said top surface of said screen panel.

10. The screen panel assembly of claim 9 , wherein each of said plurality of screen panels comprises at least two of said plurality of raised screen components.

11. The screen panel assembly of claim 9 , further comprising a plurality of flow gaps, wherein each of said plurality of flow gaps is disposed between adjacent pairs of said plurality of raised screen components.

12. The screen panel assembly of claim 11 , wherein said plurality of flow gaps forms a substantially serpentine flow path along said screen panel assembly.

13. The screen panel assembly of claim 12 , wherein a centerline of at least one of said plurality of raised screen components is substantially aligned with a respective one of said plurality of flow gaps between an adjacent pair of said plurality of raised screen components that are positioned upstream of said at least one of said plurality of raised screen components relative to a flow direction of said substantially serpentine flow path.

14. The screen panel assembly of claim 9 , wherein each of said plurality of raised screen components comprises a frame that is coupled to a respective one of said plurality of screen panels.

15. The screen panel assembly of claim 14 , wherein each of said frames supports one of said inclined screen surfaces.

16. The screen panel assembly of claim 14 , wherein said frame comprises said wedge surface.

17. The screen panel assembly of claim 9 , wherein said screen panel assembly is a modular screen panel assembly, each of said plurality of screen panels is a modular screen sub-panel, and each of said plurality of raised screen components is a modular raised screen component, wherein each one of said plurality of modular screen sub-panels comprises a base that is adapted to be interchangeably coupled to one or more other ones of said plurality of modular screen sub-panels, and wherein each of said plurality of modular raised screen components is adapted to be interchangeably coupled to said base of each of said plurality of modular screen sub-panels.

18. The modular screen panel assembly of claim 17 , wherein each of said plurality of modular raised screen components comprises a frame that is adapted to be removably coupled to a base of a respective one of said plurality of modular screen sub-panels.

19. The screen panel assembly of claim 9 , wherein said wedge surface is positioned on an upstream side of said raised screen component and said front edge of said inclined screen surface is positioned on a downstream side of said raised screen component opposite of said wedge surface.

20. The screen panel assembly of claim 9 , wherein said wedge surface extends vertically from said top surface of said screen panel to an upper point of said inclined screen surface.

21. The screen panel assembly of claim 9 , further comprising a plurality of side panels supporting said inclined screen surface.

22. The screen panel assembly of claim 21 , wherein each of said plurality of side panels comprises a screen surface.

23. The screen panel assembly of claim 21 , wherein said wedge surface is positioned along a back edge of two of said plurality of side panels.

Assignees

• Nat Oilwell Varco Lp

Inventors

• Larson Thomas Robert
• Dufilho Paul William

Classifications

• B07B1/4609 Primary

  constructional details of screening surfaces or meshes · CPC title

• B01D2201/32

  Flow characteristics of the filter · CPC title

• B01D33/722 Primary

  containing fixed liquid displacement elements or cores · CPC title

• B07B1/4654

  Corrugated Screening surfaces · CPC title

• E21B21/065

  Separating solids from drilling fluids · CPC title