Manifold for mixing device

• US 6,698,915 B2
• Filed: 12/26/2001
• Issued: 03/02/2004
• Est. Priority Date: 12/26/2001
• Status: Expired due to Term

• Current Assignee: National Oilwell Varco LP (NOV, Inc.)
• Original Assignee: Rolligon Corp. (NOV, Inc.)
• Inventors: Dearing, Michael P., King, Daniel R., Toler, Scott A.
• Primary Examiner(s): Cecil, Terry K.
• Application Number:
  US10/036,018
• Publication Number:
  US 20030117890A1
• Time in Patent Office: 797 Days
• Field of Search: 166/280, 166/305.1, 166/308, 137/597, 366/165.5, 366/173.1, 366/181.6, 366/182.2, 366/182.3, 366/182.4
• US Class Current: 366/182.2
• CPC Class Codes: E21B 21/062 by mixing components
• CPC Class Codes: E21B 43/2607 Surface equipment specially adapted for fracturing operations
• CPC Class Codes: Y10T 137/87249 Multiple inlet with multiple outlet

Abstract

A blender mixes a liquid and a quantity of particulate solids for use in hydrocarbon well operations. The blender is mounted on a vehicle having a suction manifold of rectangular tubing. The long side of the rectangular tubing is vertical, is positioned on one side of the vehicle and provides a large number of inlet connections which, in use, connect to hoses leading to tanks filled with a frac liquid or the like. The discharge manifold may be a mirror image of the suction manifold. The rectangular suction manifold tubing provides greater spacing between the inlet connections and greater volume throughput in use. Also, the rectangular suction manifold tubing is tilted so that the inlets are angled toward the ground.

Claims

1. A blender for preparing a treatment liquid, comprising

a chassis providing a generally horizontal platform;

a manifold having a length of tubing supported by the chassis, the tubing having an upright generally planar side wall and a multiplicity of inlet connections opening through the upright side wall, the upright wall including an upper edge and a lower edge, the upper edge being outboard of the lower edge so the upright wall defines an angle, with a line perpendicular to the horizontal platform, in the range of 3-20°

; and

a fluid path including the manifold providing a mechanism for adding another material to the fluid path.

2. The blender of claim 1 wherein the mechanism comprises an inlet and an outlet and the manifold is a suction manifold connected to an inlet of the mechanism and further comprising a discharge manifold in communication with the mechanism outlet.

3. The blender of claim 2 wherein the upright side wall of the suction manifold faces away from the chassis and the discharge manifold comprises a length of tubing providing a transverse bottom wall and an upright side wall facing away from the chassis and a multiplicity of outlet connections opening through the discharge manifold upright side wall.

4. The blender of claim 3 wherein the suction manifold tubing and the discharge manifold tubing are rectangular in cross-section.

5. The blender of claim 4 wherein the chassis provides a direction of travel, the suction and discharge manifold tubing extending in the direction of travel.

6. The blender of claim 5 wherein the first mentioned length of tubing of the suction manifold extends along a first side of the chassis in the direction of travel and the suction manifold further comprises a second length of rectangular tubing extending in the direction of travel along a second side of the chassis, the second rectangular tubing having an upright generally planar side wall facing away from the chassis and a multiplicity of inlet connections opening through the upright side wall and further comprising a conduit connecting the rectangular tubing lengths of the suction manifold.

7. The blender of claim 6 wherein the first mentioned length of tubing of the discharge manifold extends along a first side of the chassis in the direction of travel and the suction manifold further comprises a second length of rectangular tubing extending in the direction of travel along a second side of the chassis, the second discharge manifold rectangular tubing having an upright generally planar side wall facing away from the chassis and a multiplicity of inlet connections opening through the second discharge manifold upright side wall and further comprising a conduit connecting the rectangular tubing lengths of the discharge manifold.

8. The blender of claim 2 wherein the mechanism for adding another material to the fluid path comprises a first pump having a suction in communication with the suction manifold and a discharge, an open top hopper for receiving particulate solids and liquid from the first pump discharge, and a second pump for receiving a mixture of solids and liquid from the hopper and delivering the mixture to the discharge manifold.

9. The blender of claim 1 wherein the upright side wall has a height dimension and further comprising a transverse bottom wall generally perpendicular to the upright side wall and having a width dimension, the height dimension being greater than the width dimension.

10. The blender of claim 9 wherein the manifold tubing is rectangular in cross-section.

11. The blender of claim 1 wherein the chassis provides a direction of travel, the first mentioned length of tubing is rectangular in cross-section and extends along the direction of travel along one side of the chassis and the manifold comprises a second length of rectangular tubing extending in the direction of travel along a second side of the chassis, the second rectangular tubing having an upright generally planar side wall facing away from the chassis and a multiplicity of inlet connections opening through the upright side wall and further comprising a conduit connecting the rectangular tubing lengths of the manifold.

12. The blender of claim 1 wherein the angle is 5-10°

.

13. A blender for preparing a treatment liquid, comprising:

a wheeled chassis having a direction of travel and providing a generally horizontal platform;

a suction manifold having a length of rectangular tubing extending in the direction of travel along a side of the chassis, the tubing having an upright generally planar side wall facing away from the chassis and a multiplicity of inlet connections opening through the upright side wall;

the upright wall including an upper edge and a lower edge, the upper edge being outboard of the lower edge so the upright wall defines an angle, with a line perpendicular to the horizontal platform, in tho range of 3-20°

;

a discharge manifold having a length of tubing extending in the direction of travel along a side of the chassis providing a multiplicity of outlet connections; and

a fluid path connecting the inlet and outlet manifolds including an open top hopper for receiving particulate solids and a mechanism for mixing solids from the hopper with liquid from the suction manifold and delivering a slurry to the discharge manifold.

14. The manifold of claim 13, wherein the suction manifold comprises a second length of rectangular tubing extending in the direction of travel along an opposite side of the chassis, the second rectangular tubing having an upright generally planar side wall facing away from the chassis and a multiplicity of inlet connections opening through the upright side wall and further comprising a conduit connecting the rectangular tubing lengths of the suction manifold.

15. The blender of claim 13 wherein the angle is 5-10°

.

16. The blender of claim 13 wherein the discharge manifold comprises a second length of rectangular tubing extending in the direction of travel along an opposite side of the chassis, the second rectangular tubing having a second upright generally planar side wall facing away from the chassis and a multiplicity of inlet connections opening through the second upright side wall and further comprising a conduit connecting the rectangular tubing lengths of the discharge manifold.

17. The blender of claim 16 wherein the second upright wall of the discharge manifold tubing includes an upper edge and a lower edge, the upper edge being outboard of the lower edge so the upright wall defines an angle, with a line perpendicular to the horizontal platform, in the range of 3-20°

.

18. The blender of claim 17 wherein the angle between the vertical and the upright wall of the discharge manifold tubing lengths is 5-10°

.