Patent ID: 8496065
Filing Date: 2013-07-30
Classification: E21B

Abstract:
1. A release assembly for releasing a portion of a tool string in a wellbore, the release assembly comprising: an outer housing; a fishing receptacle disposed within the housing, the fishing receptacle having a fishing neck; at least one shearable member initially coupling the fishing receptacle to the outer housing; a support assembly disposed within the housing, the support assembly having a first position wherein the support assembly engages the fishing neck to prevent relative axial movement between the fishing receptacle and the housing and a second position wherein the support assembly is disengaged from the fishing neck no longer preventing relative axial movement between the fishing receptacle and the housing; and an actuator disposed within the housing, the actuator maintaining the support assembly in the first position until actuation thereof allows the support assembly to shift to the second position, wherein, after shifting the support assembly to the second position, application of sufficient tension between the fishing receptacle and the outer housing will cause the at least one shearable member to shear, thereby decoupling the fishing receptacle and the outer housing.