DESCRIPTION OF THE
The diagram opposite shows the gas extraction column. It is made
up of 330 m of PEHD polyethylene tubes under the separator. A flow regulator for
the column is placed at a depth of 100 m. The column is then attached to the base
of the first unit, the separator.
The gas lift is connected 20 metres below
the separator on the main column, that is to say at a total depth of about 40
m. The supply pipe for the gas lift is a narrow gauge PE tube.
is a metal cylinder inside which the gas is separated from the water . Two outlets
are joined to the separator, one to return the water to the depths (below), the
other for the untreated gas (above).
The water outlet rejoins the column
of waste washing water, whereas the the gas outlet directly rejoins the second
unit, the washing column.