Wells – Whirling or lateral discharge or projectable nozzles
Patent
1995-11-02
1997-02-18
Dang, Hoang C.
Wells
Whirling or lateral discharge or projectable nozzles
166191, E21B 3700
Patent
active
056033788
ABSTRACT:
A well cleaning tool includes a surge block, and a jetting tool or nozzle carried by the surge block. The surge block has fluid passageways therein for supplying the jetting nozzle. The surge block is formed of a cylindrical central body with elastomeric disks fixed above and below the central body, the disks being sized to fit relatively snugly within the well casing. The fluid passageway through the central body is threaded at the top for connection of a supply conduit, and may be threaded at the bottom for connection of a jetting nozzle. Thus, the jetting tool can be used for initial cleaning, while the surge block confines the heat and chemical action; then, the surge block can be reciprocated for surging the well. Both surging and jetting can be used simultaneously, and/or alternatively. A plurality of disks can be used as desired, and a jetting nozzle can be outside the disks, or between two disks to confine the chemical action.
REFERENCES:
patent: 1260241 (1918-03-01), Minton
patent: 1379815 (1921-05-01), Hall
patent: 2136881 (1938-11-01), Johnson
patent: 2186309 (1940-01-01), Travis
patent: 3089544 (1963-05-01), Cobb
patent: 3547191 (1970-12-01), Malott
patent: 4609045 (1986-09-01), Rogers
patent: 4763728 (1988-08-01), Lacey
patent: 4899821 (1990-02-01), Casida
Dang Hoang C.
Middleton James B.
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