Method of opening an orifice in a downhole article, method for making the same and article made thereby

A selectively removable fastener plug, comprising:

• a selectively removable plug body formed of a selectively removable plug body material, the plug body material comprises a powder compact comprising a substantially-continuous, cellular nanomatrix comprising a nanomatrix material;
• a plurality of dispersed particles comprising a particle core member material that comprises Mg, Al, Zn, Fe or Mn, or alloys thereof, or a combination thereof, dispersed in the cellular nanomatrix;
• and a bond layer extending throughout the cellular nanomatrix between the dispersed particles;
• and
• a selectively removable sealant coating comprising a selectively removable coating material disposed on an outer surface thereof, the coating material comprises a polymer, and the polymer serves as a binder for particles of a fluoropolymer or a dry-film lubricant, or both.

A downhole basepipe assembly, comprising:

• a basepipe, the basepipe having a pipe wall and an orifice that extends through the wall from an inner surface to an outer surface;
• a selectively removable plug sealingly disposed in the orifice, the selectively removable plug comprising a selectively removable plug body formed of a plug body material and a selectively removable sealant coating formed of a coating material disposed on an outer surface thereof, the plug body material comprises a powder compact comprising a substantially-continuous, cellular nanomatrix comprising a nanomatrix material;
• a plurality of dispersed particles comprising a particle core member material that comprises Mg, Al, Zn, Fe or Mn, or alloys thereof, or a combination thereof, dispersed in the cellular nanomatrix;
• and a bond layer extending throughout the cellular nanomatrix between the dispersed particles, the coating material comprises a polymer, and the polymer serves as a binder for particles of a fluoropolymer or a dry-film lubricant, or both;
• and
• a screen disposed on a portion of an outer surface of the basepipe and attached to the outer surface about a periphery thereof, the orifice disposed under the screen.

A downhole article, comprising:

• an article, the article having an orifice that extends through a wall from an inner surface to an outer surface;
• and
• a selectively removable plug sealingly disposed in the orifice, the selectively removable plug comprising a selectively removable plug body formed of a plug body material and a selectively removable sealant coating formed of a coating material disposed on an outer surface thereof, the plug body material comprises a powder compact comprising a substantially-continuous, cellular nanomatrix comprising a nanomatrix material;
• a plurality of dispersed particles comprising a particle core member material that comprises Mg, Al, Zn, Fe or Mn, or alloys thereof, or a combination thereof, dispersed in the cellular nanomatrix;
• and a bond layer extending throughout the cellular nanomatrix between the dispersed particles, the coating material comprises a polymer, and the polymer serves as a binder for particles of a fluoropolymer or a dry-film lubricant, or both.