Drilling kick-off device

Details Drilling kick-off device Drilling kick-off device

1994-04-28

1995-07-11

Novosad, Stephen J.

Wells

Means for guiding insertable element laterally of well axis

175 78, 175 79, E21B 708

Patent

active

054312230

ABSTRACT:
A kick-off device is provided. The kick-off device is useful in drilling a pair of opposite deviated borehole branches in an under ground formation from a single borehole and comprises an open-ended tube provided at its upper end with connecting means to join the open-ended tube to a string of casing, and a guide element arranged in the open-ended tube near its lower end, which guide element includes two hollow slanted guide ways arranged on opposite sides of the guide element, wherein the wall of the open-ended tube has elongated openings facing the slanted guide ways.

REFERENCES:
patent: 2693342 (1954-11-01), Lynes
patent: 4396075 (1983-08-01), Wood et al.
patent: 4573541 (1986-03-01), Josse et al.
"Engineering, Drilling and Production Operations," The Petroleum Handbook, 6th Edition, Elsevier, pp. 134-137 (1983).

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