Groundwater sampling system

Details Groundwater sampling system Groundwater sampling system

1986-06-03

1988-05-24

Levy, Stewart J.

Measuring and testing

Borehole or drilling

Downhole test

7386324, 166264, E21B 4908

Patent

active

047458011

ABSTRACT:
A multi-level groundwater sampling system utilizes a multiplicity of small diameter flexible sampling tubes terminating at their lower ends at different depths in a single small diameter drill hole, the lower end section of each sampling tube being perforated and loosely wrapped with fine mesh flexible cloth screen secured to the perforated tube section by longitudinally spaced ties, so that the cloth may flex inward and outward to assist in removing potential screen-plugging silt or other finely particulate solids. The upper ends of the sampling tubes are available for connection to a vacuum pump for collection of groundwater samples. The upper ends of the sampling tubes also may be coupled to a manifold connected to a vacuum pump for measuring groundwater pressures.

REFERENCES:
patent: 2605637 (1952-08-01), Rhoades
patent: 3240067 (1966-03-01), Jongejan
patent: 3930754 (1976-01-01), Mogg et al.
patent: 4015479 (1977-04-01), Apple
patent: 4112768 (1978-09-01), Holland et al.
patent: 4192181 (1980-03-01), Patton et al.
patent: 4548266 (1985-10-01), Burklund
patent: 4585060 (1986-04-01), Bernardin et al.

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