Controlled pressure drop filter

Details Controlled pressure drop filter Controlled pressure drop filter

E - Fixed Constructions

21

B

E21B 43/12 (2006.01) B01D 29/15 (2006.01) B01D 35/157 (2006.01) E21B 34/08 (2006.01) E21B 43/08 (2006.01)

Patent

CA 2443583

-The present invention relates to a strainer device with controlled pressure drop including a filtering element (9) delimited and centred on a base pipe (1) by spacers which are longitudinal relative to the axis of the pipe and arranged on the diameter of the pipe so as to divide the annular space, defined by the filtering element and the pipe, into sectors delimited by the spacers, and in which collection pipes (5) are arranged and emerge through one end in the sectors. The invention is applicable to tubular drainage or injection strings in a geological formation, for example, a hydrocarbon deposit.

- L'invention concerne un dispositif de crépine à perte de charge contrôlée comportant un élément filtrant (9) circonscrit et centré sur un tube de base (1) par des entretoises longitudinales par rapport à l'axe du tube et disposées selon le diamètre du tube de façon à découper l'espace annulaire, défini par l'élément filtrant et le tube, en secteurs délimités par les entretoises, et dans lequel des tubes de collecte (5) sont disposés et débouchent par une extrémité dans les secteurs. - L'invention s'applique aux colonnes tubulaires de drainage ou d'injection dans une formation géologique, par exemple un gisement d'hydrocarbures.

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