DEVICE FOR TRANSPORTING TOOLS TO HORIZONTAL WELL Russian patent published in 2010 - IPC E21B47/00 

FIELD: oil and gas industry.

SUBSTANCE: device for transporting tools to horizontal well includes external fixed housing, two movable housings, two wedging supports, motor; at that, in external housing there installed is electric motor with down reduction gear and screw gear with two parallel located screws, one of which has left-handed thread; screws are installed with possibility of rotation through a set of gear wheels; upper and lower housings are equipped each with a pair of wedging spring-loaded cams; at that, lower pair of cams is fixed in the axis in movable insert; folding mechanism of lower pair of cams includes a rack, axis with toothed sector, which is fixed on movable insert and shaped slot on lower movable housing.

EFFECT: possibility of transporting tools to any horizontal well, providing multiple tool lowering and lifting process, rigid engagement with casing string, reliability and increased movement speed of device.

2 dwg