Debris-catching attachment device and method therefor

Details Debris-catching attachment device and method therefor Debris-catching attachment device and method therefor

E - Fixed Constructions

21

B

E21B 43/08 (2006.01)

Patent

CA 2710967

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.

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