Integrated sidetrack drilling tool

摘要

An integrated sidetrack drilling tool comprising a milling cone, a whipstock iron and a setting anchor; a liquid guiding pipe communicating the milling cone and the setting anchor is provided inside the whipstock iron; the milling cone presses against an inclined surface of the whipstock iron; an annular groove is provided on a circumference of the milling cone; a portion of the annular groove is an arc shaped clamping slot whose inner side is wider than outer side; other portions of the annular groove constitute a trapezoidal slot whose inner side is narrower than outer side; a portion of the whipstock iron is fixedly provided with a positioning block; an arc shaped clamping edge is provided on the positioning block; the positioning block is held in the arc shaped clamping slot via the arc shaped clamping edge; a positioning screw is provided between the whipstock iron and the milling cone.

主权项

1. An integrated sidetrack drilling tool, comprising:
a milling cone, a whipstock iron and a setting anchor coaxially connected in sequential order; a liquid guiding pipe communicating an inner hole of the milling cone and an inner cavity of the setting anchor is provided inside the whipstock iron; wherein, a lower part of the milling cone presses against an inclined surface of the whipstock iron at an upper part of the whipstock iron; an annular groove is provided on a circumference of the lower part of the milling cone along a circumferential direction; a portion of the annular groove corresponding to the whipstock iron is an arc shaped clamping slot whose inner side is wider than outer side; other portions of the annular groove constitute a trapezoidal slot whose inner side is narrower than outer side; a portion of the whipstock iron corresponding to the annular groove is fixedly provided with a positioning block; an arc shaped clamping edge coordinating with the arc shaped damping slot and coaxial with the whipstock iron and the milling cone is provided on the positioning block; the positioning block is held in the arc shaped clamping slot via the arc shaped clamping edge; and a positioning screw is provided between an upper end of the whipstock iron and the milling cone.