Device for the remote adjustment of the relative orientation of

Details Device for the remote adjustment of the relative orientation of Device for the remote adjustment of the relative orientation of

1988-06-29

1989-06-06

Novosad, Stephen J.

Boring or penetrating the earth

Means traveling with tool to constrain tool to bore along...

Sectional guide or shaft having means to lock sections in...

175256, E21B 708

Patent

active

048363030

ABSTRACT:
The device comprises a variable-angle elbow coupling (14) interposed between the ends (12, 13) of two successive sections of a column. The coupling (14) comprises a first rectilinear tubular element (14a) and a second rectilinear tubular element (14b) connected to the element (14a) and mounted to be rotatable relative to the element (14a) about an axis (16). The axis of the tubular element (14) makes a non-zero angle with the axis (18) of the first section of the column. The end portions of the elements (14a, 14b) are radially offset relative to the axis (18) of the column and connected to the first section (12) and the second section (13) respectively by detachable rigid tubular elbow couplings (15a, 15b). The device of the invention is applicable to a drilling column.

REFERENCES:
patent: 4220214 (1980-09-01), Benoit
patent: 4303135 (1981-12-01), Benoit
patent: 4745982 (1988-05-01), Wenzel

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