Patent ID: 9605510
Date: 2017-03-28
CPC Classifications: E21B

Claim:
1. A tool for use in cementing a wellbore, the tool comprising: a body, the body comprising upper and lower members; a passage for receiving and guiding cementitious material through the tool; locking means configured to secure the tool within the wellbore when deployed; the upper and lower members connected by means of a shear component, the shear component configured to rupture and allow disconnection of the upper and lower members; and the upper member configured for engagement with a rod for lowering the tool into place in the wellbore; wherein after deployment of the locking means, lifting of the upper member by means of the rod causes the shear component to rupture and the upper and lower members to disconnect, allowing the upper member to be disconnected without rotating the tool and removed from the wellbore.