Well maintenance equipment and procedure

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 37/00 (2006.01) E21B 21/14 (2006.01) E21B 43/00 (2006.01) E21B 43/22 (2006.01) E21B 43/24 (2006.01)

Patent

CA 2414071

The present invention relates to a method of removing deposits from various types of wells (17) including environmental recovery, water supply, horizontal, barrier, injection, recharge, and/or disposal wells (17). The method includes equipping a well (17) with an automated energy delivering system that is attached to the well (17). The energy delivering system is used to clean the surface of the well (17) and aquifer by supplying various types of energy to the well (17) and aquifer via injection lines (5, 6, 8, 11 and 12) and an eductor pipe (10). A pump (14) is used to pump the energy through flow valves (20 and 21) and injection lines {5, 6, 8, 11 and 12) and into the well (17). The energy that is supplied to the well (17) mobilizes any deposits in the well (17) and aquifer and cause them to flow into and up the wellbore thereby cleaning the well (17) and aquifer.

L'invention concerne un procédé d'élimination des dépôts dans différents puits (17), notamment des puits de récupération environnementale, des puits d'alimentation d'eau, des puits d'injection, des puits de recharge, des puits barrière, des puits horizontaux, et/ou des puits perdus (17). Ledit procédé consiste à équiper un puits (17) d'un système automatique de distribution d'énergie fixé audit puits (17). Le système de distribution d'énergie est utilisé pour nettoyer la surface du puits (17) et de la couche aquifère par fourniture de différents types d'énergie au puits (17) et à la couche aquifère via des lignes d'injection (5, 6, 11, 12 et 13) et un tuyau d'évacuation (10). On utilise une pompe (14) pour envoyer l'énergie à travers les vannes d'écoulement (20, 21) et les lignes d'injection (5, 6, 11, 12 et 13) et l'injecter dans le puits (17). L'énergie fournie au puits (17) mobilise tous les dépôts se trouvant dans le puits (17) et la couche aquifère, et les entraîne dans le puits et vers le haut de celui-ci, ce qui nettoie ledit puits (17) et la couche aquifère.

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