Release assembly for a downhole tool string

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;
• a mechanically actuated release 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 electrically actuated release member disposed within the housing, the electrically actuated release member initially maintaining the support assembly in the first position until electrical actuation thereof allows the support assembly to shift to the second position,
• wherein, after shifting the support assembly to the second position, mechanical actuation of the mechanically actuated release member decouples the fishing receptacle and the outer housing.

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;
• a first release 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
• a second release member disposed within the housing, the second release member initially 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, actuation of the first release member decouples the fishing receptacle and the outer housing.