Boring or penetrating the earth – Boring without earth removal – Combined with earth removal
Patent
1995-11-06
1999-11-09
Dang, Hoang C.
Boring or penetrating the earth
Boring without earth removal
Combined with earth removal
175 59, 166169, 166264, E21B 4902, E21B 4908
Patent
active
059795697
ABSTRACT:
A sampling device having a fluid collecting portion adapted to recover a fluid sample from a subsurface. Fluid entering the fluid collecting portion passes through a valve which may be remotely actuated. After the sampling device has been driven into the subsurface and a fluid sample has been collected in the fluid collecting portion, the valve is closed to prevent cross-contamination of the fluid sample in the fluid collecting portion.
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Dang Hoang C.
SimulProbe Technologies, Inc.
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