Geothermal well sampler apparatus

Details Geothermal well sampler apparatus Geothermal well sampler apparatus

1979-09-10

1981-03-10

Novosad, Stephen J.

Wells

Receptacles

166169, 166264, E21B 4908

Patent

active

042548306

ABSTRACT:
An elongated body member, a portion of which forms a chamber for retaining samples of the liquid and steam contents of a geothermal well. A fluid tight seal is formed between an O-ring and a parallel sealing face of a slidable shaft member. The pressure sealing force is adjustably controlled by a spring assembly. The spring assembly is adjusted so that the sealing force must be overcome before a sample is taken. When the sealing force exerted upon the seal is overcome, the sample chamber is placed in fluid communication with the geothermal borehole by a series of passages which include grooves or slots contained in the slidable shaft member. After sampling is complete the seal is reformed allowing the sampler to be retrieved to a surface location.

REFERENCES:
patent: 1775641 (1930-09-01), Haertl
patent: 2147983 (1939-02-01), Lindsly
patent: 2316216 (1943-04-01), Bandy
patent: 2332813 (1943-10-01), Rolshausen et al.
patent: 2686566 (1954-08-01), Barnes
patent: 2938388 (1960-05-01), Byrnes
patent: 3981189 (1976-09-01), Howard et al.
Klyen, L. E., "A Vessel for Collecting Subsurface Water Samples for Geothermal Drillholes", Geothermetrics, vol. 2, No. 2, 1973.

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