Treating liquids in oil extraction

Details Treating liquids in oil extraction Treating liquids in oil extraction

E - Fixed Constructions

21

B

E21B 37/00 (2006.01) E21B 41/02 (2006.01) C02F 1/48 (2006.01)

Patent

CA 2663963

A method of treating liquid, particularly an oil/water mixture, in an oil well pipe (10), wherein a radio frequency propagating electrical field is established in the liquid in the pipe cause the formation of seed crystals or scale-forming material in the liquid, on which seed crystals asphaltenes and/or paraffin waxes in the liquid are deposited so that they are carried through the pipe with the liquid in preference to being deposited on the pipe wall.

La présente invention concerne un liquide de traitement, notamment un mélange de pétrole et d'eau, dans une conduite de puits de pétrole (10). Un champ électrique de propagation de fréquence radio, établi dans le liquide de la conduite amène à la formation de cristaux de semence ou à la formation à l'échelle de matériau dans le liquide. Des asphaltènes ou des cires de paraffine dans le liquide sont déposées sur les cristaux de semence de manière à être transportées dans la conduite avec le liquide de préférence à un dépôt dans la paroi de la conduite.

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