Electronic rupture discs for interventionaless barrier plug

A method for removing a plug positioned to block fluid flow through a passageway in a downhole tubular positioned in a subterranean wellbore, the plug isolated from fluid in the passageway by at least one cover, the method comprising the steps of:

• actuating an electronic rupture disc assembly to open a fluid bypass to the plug;
• and
• substantially degrading the plug using a fluid, and
• actuating a second electronic rupture disc assembly to allow the fluid to flow into contact with the plug.

An apparatus for use in a subterranean wellbore and for removing a degradable plug from a passageway extending along a downhole tubular, the degradable plug for blocking fluid flow through the passageway, the apparatus comprising:

• a fluid chamber having a degrading fluid therein for degrading the plug;
• a first electronic rupture disc assembly having a first rupture disc for selectively blocking flow from the fluid chamber;
• and
• a second electronic rupture disc assembly having a second rupture disc for selectively blocking flow of the degrading fluid into contact with the degradable plug.

A method for removing a degradable barrier plug positioned to block fluid flow through a passageway in a downhole tubular positioned in a subterranean wellbore, the degradable barrier plug substantially isolated from fluid in the passageway by at least one cover, the method comprising the steps of:

• actuating a first electronic rupture disc assembly to open a fluid bypass to the degradable plug;
• substantially degrading the degradable barrier plug;
• and then
• actuating a second electronic rupture disc assembly to allow a movable member to remove at least a portion of the cover substantially out of the passageway.