DEFLECTOR FOR SLANTING-DIRECTED DRILLING OF WELLS BY ROTOR METHOD Russian patent published in 2004 - IPC

FIELD: well drilling technology.

SUBSTANCE: device has body curved in middle section with supporting elements at the ends, hollow shaft consisting of upper and lower sections, chisel, assembly for blocking hollow shaft made in form of spring-loaded sleeve mounted in body with possible axial displacement having longitudinal groove cut for directing finger, and outer slits. It is provided with bushing pressed into the body made with slits for interaction with outer slits of spring-loaded sleeve. Spring-loaded sleeve is made with inner slits for providing for engagement with slits of hollow shaft, and its upper end has profile in form of coil of left-handed screw surface connected to longitudinal groove, above which protective cap is placed for protecting directing finger from accidental movement into longitudinal groove. Length of longitudinal groove is greater than length of drive of slit connection of spring-loaded sleeve to hollow shaft.

EFFECT: higher reliability of device operation.

7 dwg