Wells – Processes – Sampling well fluid
Patent
1995-07-05
1996-08-27
Dang, Hoang C.
Wells
Processes
Sampling well fluid
7386311, 7386491, 166100, 166162, E21B 4910
Patent
active
055491626
ABSTRACT:
The present invention is a sample tank for storing and transporting a fluid sample withdrawn from an earth formation by a formation fluid sampling tool. The sample tank includes a storage cylinder adapted to withstand high internal pressure. The storage cylinder is selectively hydraulically connected to the sampling tool for conducting the fluid sample into the storage cylinder. A fusible metal substantially surrounds the storage cylinder. The fusible metal has a melting temperature not more than the temperature of the fluid sample, so that solidification of the fusible metal maintains the fluid sample substantially at the melting temperature of the fusible metal during solidification of the fusible metal as the tool is withdrawn from the wellbore and cooled. The fusible metal is surrounded by an outer housing which contains the fusible metal when it is in a liquid state.
REFERENCES:
patent: 3022826 (1962-02-01), Kisling, III
patent: 4296637 (1981-10-01), Calamur et al.
patent: 4507957 (1985-04-01), Montgomery et al.
patent: 4756200 (1988-07-01), Ramsner et al.
patent: 4950844 (1990-08-01), Hallmark et al.
patent: 5303775 (1994-04-01), Michaels et al.
Michaels John M.
Moody Michael J.
Yesudas Michael
Dang Hoang C.
Fagin Richard A.
Western Atlas International Inc.
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