INCLINATOR ASSEMBLY FOR AUXILIARY WELLBORE Russian patent published in 2017 - IPC E21B7/06 

FIELD: mining.

SUBSTANCE: inclinator assembly comprises an upper inclinator disposed inside the main wellbore and defining first and second channels that extend longitudinally through the upper inclinator, the second channel has a wider width than the width of the first channel; and a lower inclinator disposed inside the main wellbore and spaced from the upper inclinator by a predetermined distance, the lower inclinator defines the first passage that is connected to the lower part of the main wellbore and the second passage that is connected to the auxiliary wellbore. These upper and lower inclinators are configured to guide the assembly with the rounded head to the auxiliary wellbore or to the lower part of the main wellbore, depending on the length of the tip with the rounded head of the assembly with the rounded head compared to the predetermined distance.

EFFECT: faultless direction of the rounded head unit to the main wellbore or the side wellbore.

19 cl, 23 dwg