Shale shaker

• US 7,581,647 B2
• Filed: 03/13/2003
• Issued: 09/01/2009
• Est. Priority Date: 04/26/2002
• Status: Active Grant

• Current Assignee: Varco I/P Incorporated (NOV, Inc.)
• Original Assignee: Varco I/P Incorporated (NOV, Inc.)
• Inventors: Grichar, Charles Newton, Seyffert, Kenneth Wayne, McClung, Guy L. III
• Primary Examiner(s): Mackey; Patrick H
• Assistant Examiner(s): Hageman; Mark
• Application Number:
  US10/512,372
• Publication Number:
  US 20060016768A1
• Time in Patent Office: 2,364 Days
• Field of Search: 209/370, 209/404, 209/405, 209/408, 209/409, 209/412, 209/413
• US Class Current: 209/370
• CPC Class Codes: B01D 33/0376 supported
• CPC Class Codes: B07B 1/46 Constructional details of screens in general; Cleaning or heating of screens
• CPC Class Codes: B07B 1/4609 constructional details of screening surfaces or meshes
• CPC Class Codes: B07B 1/4618 Manufacturing of screening surfaces

Abstract

A shale shaker (10) or vibratory separator which, in one aspect, has a base (22), vibration isolation apparatus on the base (22), a basket (12), mount apparatus (16) for mounting the basket on the base (22), and at least one of the base (22), basket (12), and the mount apparatus (16) made of, encased in, or coated with composite material which, in certain aspects, is all or part flexible composite material; and methods of using such separators and shakers.

Claims

1. A shale shaker comprising a base, vibration isolation apparatus connected to said base, a basket connected to said vibration isolation apparatus, vibrator apparatus connected to the basket to vibrate said basket, at least one of said base, said basket and said vibration isolation apparatus including a first portion made of flexible composite material and a second portion made of rigid composite material,

the vibration isolation apparatus including

basket spring mounts connected to the basket,

base mount members connected to the base,

a spring on each base mount member positioned below a basket spring mount,

the first portion made of flexible composite material comprising a portion of the base mount members and

the second portion made of rigid composite material comprising a portion of the base mount members,

the vibration isolation apparatus including a spring mount base with a core and a portion surrounding the core,

the core made of flexible composite material,

a first ring around the core, the ring made of rigid material,

the first portion made of flexible composite material comprising a second ring around the first ring.

2. The shale shaker of claim 1 wherein

each basket spring mount includes a spring support,

each spring is on a spring support,

each spring support including a body and a core in the body,

the core comprising the first portion made of flexible composite material.

3. The shale shaker of claim 2 further comprising

a plurality of spaced-apart rods extending through the core and into the body.

4. A shale shaker as claimed in claim 1 wherein the first portion of flexible composite material includes at least one reinforcing part within the composite material.

5. A shale shaker as claimed in claim 4 wherein the reinforcing part is made of metal.

6. A shale shaker as claimed in claim 4 wherein the reinforcing part is made of material from the group consisting of wood, plastic, fibre, and composite material.

7. A shale shaker as claimed in claim 1 further comprising electronic tracking apparatus on the shale shaker.

8. The shale shaker of claim 1 wherein the base mount members have a top part and the top part includes the first portion made of flexible composite material and the second portion made of rigid composite material.

9. The shale shaker of claim 8 wherein

the base mount members include a bottom part beneath the top part, the bottom part made of metal.

10. The shale shaker of claim 1 wherein the basket spring mounts have a part comprising the first portion made of flexible composite material.

11. The shale shaker of claim 1 wherein

the first portion made of flexible composite material is adjacent the second portion made of rigid composite material.

12. The shale shaker of claim 3 wherein the rods are made of flexible composite material.

13. The shale shaker of claim 1 wherein

the basket has a wall,

the wall comprises a main part with a first side spaced-apart from a second side,

the first side having a layer of flexible composite material thereon.

14. The shale shaker of claim 13 wherein

the second side has a coating of composite material thereon.

15. The shale shaker of claim 13 wherein the layer of flexible composite material ranges between 1/64 inch and ½

inch in thickness.

16. A shale shaker as claimed in claim 1 wherein

the shale shaker has a screen support apparatus,

the vibratory apparatus for vibrating the screen support apparatus,

isolation apparatus for isolating the screen support apparatus to inhibit vibrations vibrating the screen apparatus from vibrating objects other than the screen support apparatus and the screen apparatus,

mounting apparatus to which is mounted the vibration isolation apparatus, the mounting apparatus made from composite material, and

the mounting apparatus includes at least one mount portion made from flexible composite material and at least one mount portion made from rigid composite material.

17. A shale shaker as claimed in claim 16 wherein the at least a portion made from flexible composite material is a plurality of spaced-apart amounts of flexible composite material.

18. A shale shaker as claimed in claim 16 wherein the vibration isolation apparatus includes a plurality of spaced-apart isolaters.

19. A shale shaker as claimed in claim 16 wherein the vibration isolation apparatus is from the group consisting of springs, resilient members, cushions, flexible hollow members, and inflatable members.

20. A shale shaker as claim in claim 1 wherein the shale shaker is for treating fluid introduced thereto, the fluid to be treated comprising fluid with drilled cuttings therein.

21. A shale shaker as claimed in claim 1 wherein the shale shaker is for treating fluid introduced thereto, the fluid to be treated including lost circulation material.

22. A shale shaker as claimed in claim 21 wherein the lost circulation material includes fibrous lost circulation material.

23. A method for treating fluid with a shale shaker, the method comprising providing a shale shaker comprising a base, vibration isolation apparatus connected to said base, a basket connected to said vibration isolation apparatus, vibrator apparatus connected to the basket to vibrate said basket, at least one of said base, said basket and said vibration isolation apparatus including a first portion made of flexible composite material and a second portion made of rigid composite material,

the vibration isolation apparatus including

basket spring mounts connected to the basket,

base mount members connected to the base,

a spring on each base mount member positioned below a basket spring mount,

the first portion made of flexible composite material comprising a portion of the base mount members and

the second portion made of rigid composite material comprising a portion of the base mount members,

the vibration isolation apparatus including a spring mount base with a core and a portion surrounding the core,

the core made of flexible composite material,

a first ring around the core, the ring made of rigid material,

the first portion made of flexible composite material comprising a second around the first ring,

introducing fluid to be treated to the shale shaker,

processing fluid through the shale shaker.

24. A method as claimed in claim 23 wherein said fluid includes drilled cuttings.

25. A method as claimed in claim 23 wherein said fluid includes lost circulation material.