Wells – Whirling or lateral discharge or projectable nozzles – Rotary or projectable
Patent
1982-07-19
1984-05-29
Purser, Ernest R.
Wells
Whirling or lateral discharge or projectable nozzles
Rotary or projectable
166312, E21B 2100
Patent
active
044509073
ABSTRACT:
This invention relates to a system for cleaning debris and precipitated materials from above a packer in a well bore. The tool includes a special overshot which attaches to a cut off tubing on a packer. The overshot has a closed off bore and a side opening which is coupled to a tubing string. A cleaning tool is pumped down the tubing and has a flexible tubing which passes through the side opening. Fluid can be circulated from the tubing to the annulus and remove precipitates. The cleaning tool has a collar location for position alignment.
REFERENCES:
patent: 2839143 (1958-06-01), Alexander
patent: 3020957 (1962-02-01), Tausch
patent: 3163226 (1964-12-01), Lagucki
patent: 3464495 (1969-09-01), Childers et al.
patent: 3945436 (1976-03-01), Nebolsine
Clark James M.
Small Tony M.
Beard W. J.
Bui Thuy M.
Halliburton Company
Purser Ernest R.
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