Well casing wash assembly

Details Well casing wash assembly Well casing wash assembly

1991-09-16

1992-11-10

Bui, Thuy M.

Wells

Receptacles

Lateral ports used in well

166171, E21B 3700

Patent

active

051616122

ABSTRACT:
A water pressure cleaning assembly useful in cleaning out the perforations in a well casing includes a mandrel structure defined by an upper cylindrical segment and a lower conical segment. An upper and lower annular seal is movable respectively along the upper and lower segments to allow relative motion of the mandrel structure within the annuli thereof. This lateral motion then allows the passage of the assembly across irregularities in the casing.

REFERENCES:
patent: 3297083 (1967-01-01), Taylor
patent: 4892145 (1990-01-01), Stafford

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