Purge water management system

Details Purge water management system Purge water management system

1995-03-06

1996-02-13

Tsay, Frank S.

Wells

Processes

Sampling well fluid

166369, 166 68, 166105, 166107, 175 59, E21B 4908

Patent

active

054905613

ABSTRACT:
A purge water management system for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.

REFERENCES:
patent: 2210546 (1940-08-01), Hassler
patent: 2781663 (1957-02-01), Maly et al.
patent: 3033286 (1962-05-01), Fast et al.
patent: 3103813 (1963-09-01), Bourne, Jr. et al.
patent: 3612183 (1971-10-01), Shillander
patent: 4669554 (1987-06-01), Cordry
patent: 4690216 (1987-09-01), Pritchard, Jr.
patent: 4717473 (1988-01-01), Burge et al.
patent: 5137086 (1992-08-01), Stokley et al.
patent: 5147561 (1992-09-01), Burge et al.
patent: 5176207 (1993-01-01), Keller
patent: 5238060 (1993-08-01), Niehaus et al.
patent: 5289875 (1994-03-01), Stokley et al.

Affiliated with

Also associated with

Rating

Purge water management system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purge water management system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purge water management system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-236461