C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/035 (2006.01) E21B 21/06 (2006.01)
Patent
CA 2452861
The present invention discloses a method of performing drilling operations wherein a drilling fluid is circulated in a well being drilled in the ground comprising the steps of grinding a tannin-containing organic waste to form granules, adding the ground tannin-containing organic waste product to the drilling fluid, and circulating the drilling fluid with the ground tannin-containing organic waste product in the well while drilling operations are being carried out. In a preferred embodiment, tannin-containing organic waste products include grape pomace, tomato pomace, yellow pine bark, yellow pine, wood bark and the like.
La présente invention divulgue une méthode permettant de procéder à des activités de forage pendant qu'on fait circuler un fluide de forage dans le puits en cours de forage, méthode consistant à broyer des déchets organiques contenant des tanins pour obtenir des granules, à ajouter ces déchets broyés au fluide de forage, et à faire circuler le fluide de forage renfermant les déchets organiques contenant des tanins dans le puits pendant l'exécution du forage. Dans une variante privilégiée, les déchets organiques contenant des tanins comprennent du marc de raisin, de la pulpe de tomates, de l'écorce de pin ponderosa, du pin ponderosa, de l'écorce d'arbres et des matières du même genre.
Finlayson & Singlehurst
Grinding & Sizing Co. Inc.
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