Slow rotation fluid jetting tool for cleaning a well bore

Details Slow rotation fluid jetting tool for cleaning a well bore Slow rotation fluid jetting tool for cleaning a well bore

2008-01-01

2008-01-01

Mai, Lanna (Department: 3637)

Wells

Processes

Cleaning or unloading well

C166S170000, C166S177700, C166S178000, C166S223000

Reexamination Certificate

active

07314083

ABSTRACT:
A rotary jetting tool for connection to a hollow, fluid conducting workover string has a main tool body with a hollow central passageway and a rotatable jet carrier mounted on a depending central shaft. A rotor, with fluid conducting passageways is mounted on the central shaft for rotation and limited axial movement and has fluid flow reaction outlets to urge rotation and axial movement. A striking lug on the rotor cooperates with a reaction lug on the jet carrier to provide incremental rotation and a jet head, with jet orifices directed to impact mineral deposits in the well bore is connected to the jet carrier and houses the rotor, so as to receive and discharge workover string fluid flow through the jet orifices as the jet head rotates.

REFERENCES:
patent: 4349073 (1982-09-01), Zublin
patent: 4799554 (1989-01-01), Clapp et al.
patent: 4890682 (1990-01-01), Worrall et al.

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