Method of plugging openings in well conduits

Details Method of plugging openings in well conduits Method of plugging openings in well conduits

1989-02-10

1989-09-26

Suchfield, George A.

Wells

Processes

Repairing object in well

166291, 166292, 166309, E21B 3313

Patent

active

048693219

ABSTRACT:
Thread leaks, small holes, and leaks around packers in well casings and production tubing are repaired by applying a compressed foam mixture which includes discrete solid particles of various sizes for forcing the suspended particles into the opening to provide a high friction seal. The foam mixture is moved along the inside of the conduit sandwiched between fluid bodies for maintaining the foam mixture intact. Back pressure is applied to the foam mixture for aiding the mixture to be forced through the openings.

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patent: 3884302 (1975-05-01), Messenger
patent: 4460045 (1984-07-01), Elson et al.
patent: 4470462 (1984-09-01), Hutchison
patent: 4627496 (1986-12-01), Ashford et al.
patent: 4662448 (1987-05-01), Ashford et al.
patent: 4754810 (1988-07-01), Bennett et al.

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