Sampling device

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 49/08 (2006.01) E21B 33/124 (2006.01)

Patent

CA 2236585

The invention relates to a sampling device for taking a water sample under pressure from a large depth in a hole bored in the earth. The sampling device comprises parting elements (1) for separating a sampling interval (2) from the rest of the bore hole (3); a flow pipe (4) for extracting the water from the sampling interval; a sample container (5); a sampling pipe (6) for passing up the water supplied by the flow pipe to a point above the sampling device; a valve (7) for directing the water flow directly from the flow pipe into the sampling pipe or from the flow pipe via the sample container into the sampling pipe and for closing and opening the sample container; and a pressure pipe (8) for supplying and operating pressure to the parting element (1) and the valve (7).

La présente invention se rapporte à un dispositif d'échantillonnage permettant de prélever un échantillon d'eau sous pression à grande profondeur au travers d'un trou percé dans la terre. Le dispositif d'échantillonnage comprend des éléments séparateurs (1) qui séparent un intervalle d'échantillonnage (2) du reste du trou alésé (3); un tuyau adducteur(4) qui prélève l'eau dans l'intervalle d'échantillonnage; un conteneur (5) d'échantillon; un tuyau d'échantillonnage (6) qui fait remonter l'eau provenant du tuyau adducteur jusqu'à un point situé au-dessus du dispositif d'échantillonnage; une soupape (7) qui dirige le flux d'eau directement du tuyau adducteur dans le tuyau d'échantillonnage ou du tuyau adducteur dans le tuyau d'échantillonnage via le conteneur d'échantillon, et qui ouvre et ferme le conteneur d'échantillon; et une conduite sous pression (8) qui fournit une pression de service aux éléments séparateurs (1) et à la soupape (7).

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