Packer type groundwater sampling system and water sampling metho

Details Packer type groundwater sampling system and water sampling metho Packer type groundwater sampling system and water sampling metho

1996-07-10

1999-04-27

Neuder, William

Wells

Processes

With indicating, testing, measuring or locating

166264, E21B 4700

Patent

active

058969268

ABSTRACT:
The present invention provides a system and a method for sampling groundwater under in-situ condition state in reliable, efficient and economic manner without disturbing environment of formation water present in under-ground layer. There are provided a continuous water sampling process and a batch style water sampling process for sampling formation water by confirming the same environment as that of the groundwater in the under-ground layer. After drilling water has been removed by the continuous water sampling process, formation water is repeatedly sampled by the batch style water sampling process, and a downhole system equipped with the continuous water sampling process and the batch style water sampling process is designed in such structure that it is moved up and down in a casing pipe and inserted into or removed from a packer system in the hole.

REFERENCES:
patent: 5540280 (1996-07-01), Schultz et al.

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