Wells – Processes – Sampling well fluid
Patent
1996-03-07
1998-03-10
Neuder, William P.
Wells
Processes
Sampling well fluid
166187, E21B 4700, E21B 4908
Patent
active
057250553
ABSTRACT:
A fluid sampling apparatus for use in a hole in the earth having a rigid wall and containing a fluid comprising a flexible tubular member extendable within the hole and inflatable to a diameter effective to urge the tubular member against the rigid wall. At least one fluid pump is in communication with the tubular member and the hole for transferring fluid between the tubular member and the hole whereby the tubular member is inflated as the fluid si transferred from the hole into the tubular member and the tubular member is deflated as the fluid is transferred from the tubular member to the hole. The flexible tubular member may be adapted to contain at least one instrument for sampling and measuring fluids.
REFERENCES:
patent: 3926254 (1975-12-01), Evans et al.
Andersen, L.J., "Impact of Agricultural Activities on Groundwater", International Symposium IAH, Prague Czechoslovakia 1982, pp. 115-124.
Pickens, J.F. et al., "A multilevel Device for Ground-Water Sampling and Piezometric Monitoring", Ground Water, vol. 16, No. 5, pp. 322-327, Sep.-Oct. 1978.
Teutsch, G. et al., "The In-Line-Packer System: A Modular Multilevel Sampler for Collecting Undisturbed Groundwater Samples", pp. 455-456.
Ptak Thomas
Schirmer Mario
Teutsch Georg
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