Method for preventing bitumen backflow in injection wells when s

Details Method for preventing bitumen backflow in injection wells when s Method for preventing bitumen backflow in injection wells when s

1989-07-19

1990-04-24

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166272, 166303, E21B 4324, E21B 4706

Patent

active

049192060

ABSTRACT:
A steam flood operation in which each injector is fitted with a pressure transducer and control valve which are tied into a water supply. Upon a loss of steam injection, and injection pressure, the pressure transducer signals the control valve and a pump actuator so as to cause water injection to take place and thus prevent heavy oil containing bitumen or bitumen backflow.

REFERENCES:
patent: 3396791 (1968-08-01), Van Meurs et al.
patent: 3460621 (1969-08-01), Gum et al.
patent: 3682244 (1972-08-01), Bowman
patent: 4060129 (1977-11-01), Gomaa et al.
patent: 4522263 (1985-06-01), Hopkins et al.
patent: 4620592 (1986-11-01), Perkins
patent: 4821564 (1989-04-01), Pearson et al.

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