NF EN 15112

External cathodic protection of well casings

Le présent document fournit des informations relatives aux méthodes appropriées d'évaluation du risque de fuite due à la corrosion externe des cuvelages de puits et d'évaluation du besoin en courant de protection cathodique ; il intègre également des méthodes permettant d'appliquer une protection cathodique à la partie extérieure de ces puits qui est en contact avec le sol. Il définit également les exigences relatives à la surveillance des performances des systèmes de protection cathodique. Les puits à terre et en mer relèvent du domaine d'application. Cependant, lorsque la protection des puits en mer est assurée par des anodes placées sur la structure de tête de puits, c'est un fait reconnu que l'obtention d'une protection totale des cuvelages de puits peut s'avérer souvent difficile pour des raisons pratiques. Le présent document s'applique à tous les puits de gaz, de pétrole ou d'eau à cuvelage métallique, cimenté ou non.

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