Formation evaluation while drilling

Details Formation evaluation while drilling Formation evaluation while drilling

2009-01-19

2010-12-07

Thompson, Kenneth (Department: 3672)

Wells

Processes

Sampling well fluid

C166S100000, C175S059000

Reexamination Certificate

active

07845405

ABSTRACT:
A sample module for a sampling while drilling tool includes a sample fluid flowline operatively connectable between a sample chamber and an inlet, for passing a downhole fluid. A primary piston divides the sample chamber into a sample volume and a buffer volume and includes a first face in fluid communication with the sample volume and a second face in fluid communication with the buffer volume. An agitator is disposed in the sample volume for agitating the sample fluid. A secondary piston includes a first face in fluid communication with the buffer volume having buffer fluid disposed therein and a second face.

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