Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1995-07-31
1997-08-19
Dang, Hoang C.
Wells
With below and above ground modification
Eduction pump or plunger in well
166 975, 166106, E21B 4318
Patent
active
056578210
ABSTRACT:
A facility for an oil well, extending from the surface (12) towards an oil-bearing rock stratum (14), includes a first casing (20) placed in the well and forming a flow way towards the surface for the hydrocarbons originating from the oil-bearing rock stratum (14). According to the invention the well receives a second casing (22) forming a second flow way towards the surface for the hydrocarbons originating from the same rock stratum, the facility additionally including a chamber (51) between the casings (20,22) and the well wall (18), which does not contain any hydrocarbons originating from the rock stratum.
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Beauquin Jean-Louis
Lemetayer Pierre
Dang Hoang C.
Elf Aquitaine Production
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