Method and apparatus for uniformly packing gravel around a well

Details Method and apparatus for uniformly packing gravel around a well Method and apparatus for uniformly packing gravel around a well

1981-03-16

1983-07-19

Novosad, Stephen J.

Wells

Processes

Vibrating the earth or material in or being placed in the...

166278, 166 51, E21B 3313

Patent

active

043939325

ABSTRACT:
A method and apparatus for uniformly packing gravel around the perforated region of an oil or water well casing or liner. Sonic elastic wave energy generated by means of an orbiting mass oscillator is transmitted down a pipe string to the region of a perforated well casing or liner around which gravel has been poured to prevent sand and other foreign material from entering the liner or casing or clogging up the apertures thereof. The sonic energy vibrationally excites the gravel to effect the fluidization thereof with a resultant uniform distribution of the gravel around the casing without any voids therein. When the gravel has been so uniformly distributed and the sonic energy is discontinued, the gravel tends to pack down firmly and uniformly around the casing.

REFERENCES:
patent: 2871943 (1959-02-01), Bodine
patent: 3016093 (1962-01-01), Bodine
patent: 3557875 (1971-01-01), Solum et al.
patent: 3905421 (1975-09-01), Jordan

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