Debris-catching attachment device and method therefor

• US 8,360,153 B2
• Filed: 07/21/2010
• Issued: 01/29/2013
• Est. Priority Date: 07/29/2009
• Status: Active Grant

• Current Assignee: Michael Brent Ford
• Original Assignee: Michael Brent Ford
• Inventors: Ford, Michael Brent
• Primary Examiner(s): Neuder, William P
• Application Number:
  US12/840,512
• Publication Number:
  US 20110024112A1
• Time in Patent Office: 923 Days
• Field of Search: 166/311, 166/99, 166/173, 166/176
• US Class Current: 166/311
• CPC Class Codes: E21B 37/00 Methods or apparatus for cleaning boreholes or wells E21B21/00 takes precedence
• CPC Class Codes: E21B 43/121 Lifting well fluids monitoring of down-hole pump systems E21B47/008
• CPC Class Codes: E21B 43/35 specially adapted for separating solids down-hole drilling fluid separation systems E21B21/002; separating solids from drilling fluids E21B21/065

Abstract

A debris-catching attachment device and method therefor is disclosed. When positioned in wellbore tubing, the device collects solid impurities found in well environments, thereby preventing the solids from settling onto the pump and its components when pumping operations are halted. The device comprises a ring having one of a plurality of brushes and a plurality of wiper segments coupled to a surface of the ring. As fluid is being forced naturally upward or is pumped, it flows past the components of the ring and is caused to rotate or spin in a cyclonic motion. During the first phase of well production, this directs the fluid and solids toward the tubing wall, allowing gas to escape upward. During the second phase of production, solids are caused to move toward the wall of the tubing, allowing any water and oil to move upward to the surface, with the surface tension dragging the solids along the wall of the tubing. The solids may accumulate on the brushes or wiper segments when pumping operations are halted.

Claims

1. A debris-catching attachment device comprising, in combination:

a ring positioned within a tubing of a pumping system and adapted to permit a rod string to pass through a portion thereof; and

one of a plurality of brushes and a plurality of wiper segments attached to an inner surface of the ring and positioned within the tubing;

wherein the one of a plurality of brushes and a plurality of wiper segments are positioned in a substantially spiraled configuration.

2. The debris-catching attachment device of claim 1 wherein the ring is configured as a rod guide.

3. The debris-catching attachment device of claim 1 wherein the one of a plurality of brushes and a plurality of wiper segments are positioned in a mixed configuration wherein a first portion of the one of a plurality of brushes and a plurality of wiper segments is positioned in a substantially flat configuration and a second portion of the one of a plurality of brushes and a plurality of wiper segments is positioned in a substantially spiraled configuration.

4. A debris-catching attachment device comprising, in combination:

a ring adapted to permit a rod string to pass through a central portion thereof; and

one of a plurality of brushes and a plurality of wiper segments coupled to a surface of the ring;

wherein the debris-catching attachment device is adapted to be positioned within tubing of a pumping system;

wherein the one of a plurality of brushes and a plurality of wiper segments are coupled to an inner surface of the ring are positioned in a substantially spiraled configuration.

5. The debris-catching attachment device of claim 4 wherein the one of a plurality of brushes and a plurality of wiper segments are positioned in a mixed configuration wherein a first portion of the one of a plurality of brushes and a plurality of wiper segments is positioned in a substantially flat configuration and a second portion of the one of a plurality of brushes and a plurality of wiper segments is positioned in a substantially spiraled configuration.

6. The debris-catching attachment device of claim 4, wherein the plurality of wiper segments define gaps therebetween.

7. A method for directing fluid through wellbore tubing comprising the steps of:

providing at least one debris-catching attachment device comprising, in combination;

a ring adapted to permit a rod string to pass through a central portion thereof; and

one of a plurality of brushes and a plurality of wiper segments coupled to a surface of the ring, wherein the one of a plurality of brushes and a plurality of wiper segments are positioned in a substantially spiraled configuration;

wherein the debris-catching attachment device is adapted to be positioned within the tubing;

positioning the debris-catching attachment device within the tubing;

forcing fluid upward;

wherein the fluid flows past the one of a plurality of brushes and plurality of wiper segments;

directing the fluid toward a wall of the tubing; and

causing solid impurities entrained in the fluid to accumulate on the one of a plurality of brushes and plurality of wiper segments.

8. The method of claim 7 further comprising positioning a plurality of debris-catching attachment devices within the tubing.

9. The method of claim 7 further comprising the step of utilizing a pumping system to force the fluid upward.

10. The method of claim 9 further comprising the step of positioning the debris-catching attachment device proximate a rod guide of the pumping system.