Sonic method for facilitating the fracturing of earthen formatio

Details Sonic method for facilitating the fracturing of earthen formatio Sonic method for facilitating the fracturing of earthen formatio

1985-06-24

1987-12-29

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

166308, 166249, G01V 100

Patent

active

047165553

ABSTRACT:
A pressurized liquid column is fed down the tubing string of a well and out of the well to the earthen formation at the bottom of the string. Mounted within the tubing string is an elastic rod string and the tubing plus the rod may comprise an elastic column. A vibration generator which may comprise an orbiting mass oscillator is mounted on the top of the rod string or both rod and tubing, the oscillator being operated at a sonic frequency which will effect resonant standing wave vibration of the rod string. A plurality of sonic impeller elements are fixedly mounted on the rod string at spaced intervals therealong, the spacing between such impeller elements being les than 1/10th of the wave length of the standing waves. The impeller elements are designed and oriented so as to effect downward pumping action of the liquid column in response to the sonic energy. This pumping action effects high pressure pulses against the earthen formation which causes fracturing thereof so as to create fissures therein; thereby enhancing the yield of the well.

REFERENCES:
patent: 3965982 (1976-06-01), Medlin
patent: 4358248 (1982-11-01), Bodine
patent: 4432078 (1984-02-01), Silverman
patent: 4487554 (1984-12-01), Bodine

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