Wells – With electrical means
Patent
1990-02-09
1992-04-21
Novosad, Stephen J.
Wells
With electrical means
166 77, 166 775, 166385, 175 40, 175 61, E21B 1922
Patent
active
051058782
ABSTRACT:
A method for positioning an added length of wire in a drill string is set forth, and it is especially intended for use in drilling a slant hole, as typically occurs to drill under a river, or under other surface obstacles. A cartridge is disclosed; it has an upper flange at one end, a hook or eyelet across the flange to engage a hook and line for pulling the cartridge along the drill string, and further includes latching means for latching the cartridge at a specified location in a drill string. It further includes a spool for storage of wire, and the wire extends from an annular space for storage and the annular space is defined by a pair on concentric cylindrical sleeves. A method of use is also set forth wherein the cartridge is moved from drill pipe joint to joint and supports an elongate wire which is spooled therearound and which is pulled from the spool position. The wire, on emerging, encounters frictional drag to assure that only the wire length necessary is spooled out of the device.
REFERENCES:
patent: 3807502 (1974-04-01), Heilhecker et al.
patent: 3825078 (1974-07-01), Heilhecker et al.
patent: 4325438 (1982-04-01), Zuvela
Forest Frank C.
Marshall Gailen D.
Wagner, III Thomas M.
Novosad Stephen J.
Sharewell Inc.
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