Emplacement of filter packs and seals for groundwater monitoring

Details Emplacement of filter packs and seals for groundwater monitoring Emplacement of filter packs and seals for groundwater monitoring

1990-09-06

1992-01-07

Dang, Hoang C.

Wells

Processes

Graveling or filter forming

166 51, 166 90, E21B 4304

Patent

active

050782126

ABSTRACT:
A method and apparatus for emplacement of dry particulate filter pack and seal material into a borehole to form a monitoring zone for groundwater monitoring which allows the material to be emplaced in dry form. The method involves inserting a tube into the borehole to a depth above a desired monitoring zone and consecutively injecting a first layer of seal material, a layer of filter material and a second layer of seal material, while supplying gas to the tube to prevent groundwater from contacting particulate material while in the tube. The apparatus comprises an injector, including a container and valve assembly adapted for connection to a pressurized gas supply, that allows sequential placement of seal material and filter material while continuously supplying gas to the injection tube.

REFERENCES:
patent: 1980632 (1934-11-01), Peeples
patent: 2014770 (1935-09-01), Layne
patent: 2626779 (1953-01-01), Armentrout
patent: 2749988 (1956-06-01), West
patent: 2786531 (1957-03-01), Mangold et al.
patent: 4028009 (1977-06-01), Gudzenko et al.
patent: 4944347 (1990-07-01), Richard et al.

Affiliated with

Also associated with

Rating

Emplacement of filter packs and seals for groundwater monitoring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Emplacement of filter packs and seals for groundwater monitoring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emplacement of filter packs and seals for groundwater monitoring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-815570