Wells – Processes – Sampling well fluid
Reexamination Certificate
2007-05-04
2010-11-30
Thompson, Kenneth (Department: 3672)
Wells
Processes
Sampling well fluid
C166S242200, C166S207000
Reexamination Certificate
active
07841405
ABSTRACT:
A flexible bore hole liner, such as may be used to line or seal a hole drilled into the earth's surface, and featuring a diffusion barrier to prevent undesirable cross-contamination during, for example, sampling of subsurface fluids. The sampling liner includes a flexible diffusion barrier so as to reduce diffusion transport of contaminant(s) into and/or out of the interior volume of a bore hole liner. This flexible diffusion barrier may be incorporated into the construction of a portion of known borehole liner systems. The diffusion barrier is attached by a suitable means to the liner and/or the “spacer” accompanying the liner. The diffusion barrier prevents diffusion into and/or out of the liner in the sampling interval subtended by the spacer length, preventing cross-contamination of fluid samples obtained by the liner systems currently in use.
REFERENCES:
patent: 2812025 (1957-11-01), Teague et al.
patent: 5176207 (1993-01-01), Keller
patent: 5377754 (1995-01-01), Keller
patent: 5725055 (1998-03-01), Schirmer et al.
patent: 5803666 (1998-09-01), Keller
patent: 5853049 (1998-12-01), Keller
patent: 6026900 (2000-02-01), Keller
patent: 6109828 (2000-08-01), Keller
patent: 6244846 (2001-06-01), Keller
patent: 6283209 (2001-09-01), Keller
patent: 6298920 (2001-10-01), Keller
patent: 6910374 (2005-06-01), Keller
patent: 7281422 (2007-10-01), Keller
patent: 2004/0065438 (2004-04-01), Keller
patent: 2005/0172710 (2005-08-01), Keller
patent: 2008/0142214 (2008-06-01), Keller
U.S. Appl. No. 12/001,801, filed Dec. 13, 2007, to Keller.
U.S. Appl. No. 12/287,981, filed Oct. 15, 2008, to Keller.
Baker Rod D.
Hutchins Cathleen R
Thompson Kenneth
LandOfFree
Flexible borehole liner with diffusion barrier and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible borehole liner with diffusion barrier and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible borehole liner with diffusion barrier and method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4222655