Patent ID: 9624745
Date: 2017-04-18
CPC Classifications: E21B

Claim:
1. A downhole umbilical release assembly comprising: a guillotine alignment sub, the guillotine alignment sub having a first edge over which an installed umbilical would be positioned; a guillotine mandrel positioned radially outwardly of the guillotine alignment sub and arranged to move longitudinally with respect thereto, the guillotine mandrel comprising a second edge that is arranged to pass over the first edge of the guillotine alignment sub during longitudinal movement of the guillotine mandrel relative to the guillotine alignment sub to sever an installed umbilical; and a main body, which in use provides a section of wellbore string, the main body comprising a length of at least one from the group consisting of production tubing and drilling tubing having a tubing cutting zone.