Downhole sampling apparatus and method for using same

Details Downhole sampling apparatus and method for using same Downhole sampling apparatus and method for using same

2007-03-27

2007-03-27

Gay, Jennifer H (Department: 3672)

Wells

Processes

Sampling well fluid

C166S100000, C175S059000, C073S152170, C073S152240, C073S152280

Reexamination Certificate

active

10710743

ABSTRACT:
A method and apparatus for sampling formation fluid includes drawing formation fluid from the subterranean formation into the downhole tool and collecting the formation fluid in a sample chamber. An exit flow line is operatively connected to the sample chamber for selectively removing a contaminated and/or clean portion of the formation fluid from the sample chamber whereby contamination is removed from the sample chamber. For example, a clean portion of the formation fluid may be passed to another sample chamber for collection, or a contaminated portion may be dumped into the borehole.

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