Well completion method and apparatus using a scab casing

Details Well completion method and apparatus using a scab casing Well completion method and apparatus using a scab casing

1993-04-19

1994-09-13

Bui, Thuy M.

Wells

Processes

With indicating, testing, measuring or locating

166278, 166285, E21B 4300

Patent

active

053460073

ABSTRACT:
A method and assembly for completing a wellbore having a production interval which, in turn, has at least one trouble zone (i.e. unproductive zone) intermediate two productive zones. A well assembly is lowered to position and cement a scab conduit across the trouble zone to seal the zone off from the rest of the open-hole production interval before completing the well by casing the wellbore and gravel-packing the production interval.

REFERENCES:
patent: 3865188 (1975-02-01), Doggett et al.
patent: 4474243 (1984-10-01), Gaines
patent: 4759408 (1988-07-01), Buchanan
patent: 5145004 (1992-09-01), Cornette

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