FACILITY FOR DELIVERY OF INSTRUMENTS INTO HORIZONTAL WELL Russian patent published in 2010 - IPC E21B47/00 

FIELD: oil and gas production.

SUBSTANCE: facility consists of external fixed case, of internal movable case, of two wedging supports and of motor. The electric motor with a step-down reducer and a screw drive are installed in the external fixed case. The internal movable case is equipped with two pairs of wedging spring-loaded cams arranged on slides of a double crank gear. A mechanism of folding cams into a transport position contains a spring, a screw gear mounted on the external case, a tooth clutch and rollers installed on the external fixed case.

EFFECT: increased reliability and speed of facility motion in horizontal well.

2 dwg