Sonic method and apparatus for installing monitor wells for the

Details Sonic method and apparatus for installing monitor wells for the Sonic method and apparatus for installing monitor wells for the

1987-10-19

1989-06-06

Yost, Frank T.

Boring or penetrating the earth

Boring without earth removal

Drive point detached from shaft to form cased bore or with...

175171, 175249, 166177, E21B 724

Patent

active

048362999

ABSTRACT:
A well casing of an elastic metal material is placed in concentric relationship with a casing of an inert material such as a suitable plastic. A penetrating cap piece is placed on the bottom end of the metallic casing. The two concentric casings are then driven into the earth in an area to be monitored for contamination, such driving action being achieved by a sonic oscillator which is attached to the top end of the metallic casing. Preferably, the sonic energy is provided at a frequency such as to effect resonant standing wave vibration of the metallic casing. Further, water may be injected down the casing so as to lubricate the earthen structure immediately below the cap to accelerate the penetration of the casing. When the casings have been driven to the desired depth, the metallic casing is withdrawn by lifting up thereon while continuing to apply sonic energy, leaving the casing of inert material in place such that earth samples can be periodically withdrawn from the well thus formed. A core sampling for analysis can also be withdrawn within one of the casings.

REFERENCES:
patent: 790910 (1905-05-01), McClintock
patent: 3049185 (1962-08-01), Herbold
patent: 3139945 (1964-07-01), Del Re et al.
patent: 3261412 (1966-07-01), Lob
patent: 3624760 (1971-11-01), Bodine
patent: 3932999 (1976-01-01), Todd
patent: 4286651 (1981-09-01), Steiger et al.

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