Corrodible Wellbore Plugs and Systems and Methods Including the Same

摘要

Corrodible wellbore plugs, systems and methods are disclosed herein. The methods include flowing a corrodible wellbore plug that is at least partially formed from a corrodible metal to a downhole location within a wellbore conduit and retaining the corrodible wellbore plug at the downhole location by operatively engaging an engagement structure with a wellbore tubular that defines the wellbore conduit. The methods include pressurizing a portion of the wellbore conduit uphole from the corrodible wellbore plug and flowing a corrosive reservoir fluid from the subterranean formation into contact with the corrodible metal to release the corrodible wellbore plug from the downhole location. The methods also may include removing the wellbore plug without utilizing a drill-out process. The systems include a corrodible wellbore plug that includes a plug body and a retention mechanism, which includes a slip ring formed from the corrodible metal and that includes the engagement structure.

主权项

1. A method of completing a hydrocarbon well that extends within a subterranean formation that contains a naturally occurring corrosive reservoir fluid, the method comprising:
pressurizing a portion of a wellbore conduit that is uphole from a corrodible frac plug with a pressurizing fluid, wherein the wellbore conduit is defined by a wellbore tubular that extends within the subterranean formation, and further wherein the corrodible frac plug is retained at a downhole location within the wellbore conduit and includes:
(i) a flow-control device that is configured to permit a fluid flow therethrough in an uphole direction and to restrict the fluid flow therethrough in a downhole direction; and(ii) a corrodible metallic portion that is formed from a corrodible metal that is selected to resist corrosion when in contact with the pressurizing fluid and to corrode responsive to contact with the corrosive reservoir fluid; and subsequent to the pressurizing, flowing the corrosive reservoir fluid from the subterranean formation through the flow-control device, wherein the flowing includes contacting the corrodible frac plug with the corrosive reservoir fluid to corrode the corrodible metal and release the corrodible frac plug from the downhole location within the wellbore conduit.