Internal pipe slot tool

B - Operations – Transporting – 23 – D

Patent

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Details

B23D 21/14 (2006.01) B23D 3/02 (2006.01) B23D 7/00 (2006.01) B23D 7/06 (2006.01) B26D 1/16 (2006.01) B26D 3/00 (2006.01) B26D 5/02 (2006.01) B26D 5/08 (2006.01) F16L 55/00 (2006.01)

Patent

CA 2654345

An apparatus and method to internally cut vertical slots inside PVC, HDPE, or plastic pipe-riser (blank casing) in existing methane gas recovery wells (extraction wells) that have been installed at Municipal Solid Waste Facilities are described. Vertical slots cut in methane well risers allow methane gas, LFG derived from the decomposition of waste, to enter the existing riser and extraction system. This process saves time and cost associated with drilling additional wells to retrieve methane gas from subsequent layers of the waste body. The process assists in maintaining regulatory compliance by capturing LFG and preventing it from being emitted into the atmosphere.

L'invention concerne un appareil et un procédé pour couper de manière interne des fentes verticales à l'intérieur de PVC, de HDPE ou de colonne montante plastique (enveloppe vide) dans des puits de récupération de méthane existants (puits d'extraction) installés dans des installations de déchets ménagers. Des fentes verticales coupées dans des colonnes montantes de puits de méthane permettent au méthane, LFG dérivé de la composition de déchets, d'entrer dans le système de colonne montante et d'extraction existant. Ce procédé économise du temps et le coût associé au forage de puits supplémentaires pour récupérer du méthane de couches ultérieures du corps de déchets. Le procédé aide à maintenir une conformité réglementaire en capturant le LFG et en l'empêchant d'être émis dans l'atmosphère.

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