Method for favoring the production of effluents of a producing z

Details Method for favoring the production of effluents of a producing z Method for favoring the production of effluents of a producing z

1991-11-04

1993-12-14

Dang, Hoang C.

Wells

Processes

Producing the well

166 50, 166369, E21B 4312

Patent

active

052693767

ABSTRACT:
A deflected drain (2) drilled in a producing zone (1) is equipped for the production of effluents and fitted with a perforated casing (3) and with a tubing (4). A depression is applied in different locations by selectively changing the position of the application points in relation to these locations. The position of the suction ports and/or the area thereof is varied through the selective opening of valves (8) or by displacing the inlet of the tubing (4). A tubing and/or a casing with perforations such that a determined distribution of the depression is obtained can be used. The depression can be produced by a pumping assembly (5) intercalated on the production tubing (4).

REFERENCES:
patent: 3638731 (1972-02-01), Driscoll
patent: 4020901 (1977-05-01), Pisio et al.
patent: 4460044 (1984-07-01), Porter
patent: 4565245 (1986-01-01), Mims et al.
patent: 4640359 (1987-02-01), Livesey et al.
patent: 4714117 (1987-12-01), Dech
patent: 4878539 (1989-11-01), Anders
patent: 5111883 (1992-05-01), Savery

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