Patent ID: 6058772
Filing Date: 2000-05-09
Classification: E21B

Abstract:
A sampling device suitable for being lowered into a deep hole bored in the earth for obtaining a subterranean water sample from a large depth in the hole, said sampling device comprising:spaced parting elements (1) positionable along the bore hole (3) and operable to define a sampling interval (2) between the parting elements in the bore hole and to separate the sampling interval from the remainder of the bore hole;a flow pipe (4) for extracting water from the sampling interval;a sampling container (5);a sampling pipe (6) for passing up water supplied by the flow pipe to a point above the sampling device;a valve (7) coupled to said flow pipe, sampling container, and sampling pipe, said valve having a first condition for sealing said sampling container and in which condition the water from said flow pipe is directed to said sampling pipe, said valve having a second condition for opening said sampling container and directing water from said flow pipe through said sampling container to said sampling pipe; anda pressure pipe for supplying an operating pressure to said parting elements and to said valve for operating said valve between said first and second conditions.