Well head valve insulator

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 34/02 (2006.01) F16L 59/16 (2006.01)

Patent

CA 2591849

The well head valve insulator (105) provides insulation to a gas or oil well head (102). The insulator (105) is formed with a two-piece outer shell (110a and 110b) that has a height and diameter custom-fitted to the well head (102), which is filled with foam insulation (115), preferably polyurethane foam that is molded to the configuration of the particular well head (102). The insulator (105) includes heating element supports for supporting a hose or heating coil that is used to periodically heat the valve through the flow of warm fluid. The two halves of the insulator (105) can be opened and reclosed around the well head (102) in order to provide access for routine maintenance. Optionally, the insulator (105) may be furnished with a temperature sensor for monitoring the temperature of the well head (102), or with a thermostatic control for regulating heat delivered by the heating coil.

Le dispositif isolant pour vanne de tête de puits (105) offre de l'isolation à une vanne de tête de puits de gaz ou de pétrole (102). L'isolateur (105) est formé d'une enveloppe extérieure à deux pièces (110a et 110b) qui a une hauteur et un diamètre sur mesure à la tête de puits (102), qui est rempli d'isolation thermique à la mousse (115), de préférence une mousse de polyuréthane moulée à la configuration de la tête de puits (102) précise. L'isolateur (105) comprend des supports pour élément chauffant pour supporter un tuyau ou une bobine thermique utilisés pour chauffer périodiquement la vanne par le débit de fluide chaud. Les deux moitiés de l'isolateur (105) peuvent être ouvertes et refermées autour de la tête de puits (102) afin de fournir un accès pour l'entretien quotidien. D'une façon facultative, l'isolateur (105) peut être muni d'un capteur de température afin de surveiller la température de la tête de puits (102), ou d'un régulateur thermostatique afin de réglementer la chaleur livrée par la bobine thermique.

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