Downhole release tool

摘要

A downhole tool has a release device for releasing a downhole device in a wellbore. The downhole tool has a collet with an inner surface and a collet shoulder; a release rod configured to engage the collet shoulder in a locked position and disengage from the collet shoulder in a release position; and a release tube surrounding the release rod and having a release ramp proximate a nose of the release tube.