Method of anchoring a device in a wellbore including opening an orifice between two chambers in response to an electrical signal and moving a piston in response to hydrostatic pressure when the orifice is opened

A method of anchoring a device in a wellbore, comprising the steps of:

• transmitting an electrical signal and opening an orifice between a first chamber and a second chamber in response to the electrical signal, the opening step including the steps of,
• propelling a needle into contact with a frangible member in response to the electrical signal,
• puncturing the frangible member by said needle thereby creating an opening in said frangible member, said orifice opening when the frangible member is punctured;
• moving a piston in response to a hydrostatic pressure of an annulus fluid in the wellbore;
• transferring a fluid from said first chamber to said second chamber via said orifice in response to the movement of said piston;
• and
• anchoring said device during the transfer of said fluid from said first chamber to said second chamber.

A method of anchoring a device in a wellbore, comprising the steps of:

• transmitting an electrical signal and opening an orifice between a first chamber and a second chamber in response to the electrical signal, the opening step including the steps of,
• applying a tension load to a member, said member including an internal bore and recess disposed around a peripery of said member, one end of said bore communicating with said orifice, the other end of said bore being disposed in a closed condition,
• separating said member along said recess in response to said tension load, the other end of said bore changing from said closed condition to an open condition when the member separates along said recess, the orifice opening when the other end of said bore changes to said open condition;
• moving a piston in response to a hydrostatic pressure of an annulus fluid in the wellbore;
• transferring a fluid from said first chamber to said second chamber via said orifice in response to the movement of said piston;
• and
• anchoring said device during the transfer of said fluid from said first chamber to said second chamber.

A method of anchoring a device in a wellbore, comprising the steps of:

• transmitting an electrical signal and opening an orifice between a first chamber and a second chamber in response to the electrical signal, the opening step including the steps of,
• heating a ring, said ring initially holding a first piston in place, said orifice being closed by said first piston when said first piston is held in place by said ring,
• releasing said first piston in response to the heating of said ring, said orifice opening when said first piston is released;
• moving a second piston in response to a hydrostatic pressure of an annulus fluid in the wellbore;
• transferring a fluid from said first chamber to said second chamber via said orifice in response to the movement of said second piston;
• and
• anchoring said device during the transfer of said fluid from said first chamber to said second chamber.