Downhole mobility and propulsion apparatus

Details Downhole mobility and propulsion apparatus Downhole mobility and propulsion apparatus

1983-06-20

1985-04-09

Novosad, Stephen J.

Wells

With explosive or gas generating means in well

166 66, 166104, 166249, 175 73, 175 25, E21B 708

Patent

active

045095930

ABSTRACT:
An apparatus which comprises an upper sub for connectable engagement with the wire line, a microprocessor component for directing the various functions of the overall apparatus down hole; a motor section having a plurality of thrust directional motors and ball screw assembly for movement of steering gates; a motor driven impellar means for providing thrust and flow through a portion of the apparatus and in combination with the flow gates providing steering in a certain direction; an electric transducer portion for providing ultrasonic vibrations around the circumference of the apparatus in discongealing molecular substrate adjacent the apparatus; a mechanical vibration coil assembly means on the lower end of the apparatus for discongealing larger areas of congealing in a substrate around the apparatus, and a lower sub for connectably engaging the electrical logging unit to be steered down hole. The apparatus may also comprise on either end a thrust explosive sub for explosively dislodging the apparatus in the event of lodging occuring down hole.

REFERENCES:
patent: 3215074 (1965-11-01), Robinson, Jr. et al.
patent: 3422913 (1969-01-01), Young, Jr.
patent: 3620313 (1971-11-01), Elmore et al.
patent: 4280557 (1981-07-01), Bodine

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