Method of isolating production zones in a well, and apparatus fo

Details Method of isolating production zones in a well, and apparatus fo Method of isolating production zones in a well, and apparatus fo

1989-01-18

1990-04-03

Dang, Hoang C.

Wells

Processes

Cementing, plugging or consolidating

166187, 166192, 166313, 166387, E21B 33134, E21B 3316

Patent

active

049132326

ABSTRACT:
The invention provides a method of separating at least two production zones in a well (P) using the following method and apparatus. The method is a method of making a sealing ring (18) in situ in an annular space (5) lying between a well (P) and casing (T) in the well, with the sealing ring being made adjacent to a production zone in the well, and with the method comprising the following stages:

REFERENCES:
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patent: 3224267 (1965-12-01), Harlan et al.
patent: 3542127 (1970-11-01), Malone
patent: 3578083 (1971-05-01), Anderson
patent: 4440226 (1984-04-01), Suman
patent: 4484626 (1984-11-01), Kerfoot etal.
patent: 4655286 (1987-04-01), Wood
patent: 4714117 (1987-12-01), Deck

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