E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/10
E21B 29/00 (2006.01) E21B 4/16 (2006.01) E21B 7/06 (2006.01) E21B 43/112 (2006.01) E21B 44/00 (2006.01)
Patent
CA 1093459
ABSTRACT OF THE DISCLOSURE: A well perforating tool for drilling holes in a well casing substantially from and at right angles to a vertical well bore within which the casing is disposed. The tool includes an elongate housing for insertion within the casing and having a detachable boot at one end thereof for centralizing the longitudinal axis of the tool within the casing. Two motors are disposed within the housing for rotating a flexible drill shaft, and ad- vancing and retracting the flexible drill shaft with respect to the interior wall of the casing. The entire tool is supported by a cable which also includes power supply and signal lines for independently activating the motors from an above-ground control station and ascertaining the depth of drill shaft penetration.
313193
Bullard Gerald
Robic Robic & Associes/associates
LandOfFree
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