A method for the formation of a plug in a petroleum well

Details A method for the formation of a plug in a petroleum well A method for the formation of a plug in a petroleum well

E - Fixed Constructions

21

B

E21B 33/12 (2006.01) E21B 29/00 (2006.01) E21B 29/08 (2006.01) E21B 33/134 (2006.01)

Patent

CA 2331381

The invention relates to a method for the formation of a plug (1) in a petroleum well (2) extending from the earth's surface or the sea floor to a petroleum reservoir, which well is lined with casing (3, 3'), At least one opening (4) is formed in the casing (3) at a distance from the earth's surface, and a liquid curable resin is provided in at least a portion of the opening (4) and an adjacent area of the well (2), whereby the resin after curing forms a plug (1) in the well. The invention also relates to a tool (9) for milling an opening (4) in a casing (3) of a petroleum well (2), and a plug (1) for plugging casing (3) of a petroleum well (2).

L'invention concerne un procédé de formation d'un bouchon dans un puits de pétrole (2) qui s'étend de la surface de la terre ou du fond de la mer jusqu'à un réservoir de pétrole. Ce puits est recouvert d'une enveloppe (3, 3'). Au moins une ouverture (4) est pratiquée dans l'enveloppe (3) à une certaine distance de la surface de la terre, et une résine liquide séchable est placée dans au moins une partie de l'ouverture (4) et dans une zone adjacente du puits (2). Après séchage, la résine forme un bouchon (1) dans le puits. L'invention concerne également un outil (9) destiné au fraisage d'une ouverture (4) dans l'enveloppe (3) d'un puits de pétrole (2), et un bouchon (1) destiné à boucher l'enveloppe (3) du puits de pétrole (2).

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