Patent ID: 7841405

Claim:
A method of sampling, at selected locations, a fluid from a material surrounding a bore bole, comprising the steps of: providing a flexible tubular liner; attaching at least one spacer to the liner, each said spacer having a spacer volume therein; affixing a flexible diffusion barrier directly to the liner in the vicinity of each of said at least one spacer; after said providing, attaching, and affixing steps, then disposing the flexible liner by eversion down the bore hole to situate a spacer outside the liner but in the borehole at each selected location in the borehole, thereby placing a spacer volume at each selected location; permitting the fluid to move from the material and into at least one said spacer volume; and sealing the liner, by the diffusion barrier, against contaminant diffusion, to or from fluid in the spacer volume, through the liner.