Method of making and using a reconfigurable downhole article

1. A method of making a reconfigurable article, comprising:

providing a powder comprising a plurality of base material particles, the base material particles comprising base metal particles;

providing a powder comprising a plurality of removable material particles, each removable material particle comprising a particle core, the particle core comprising a core material that comprises Mg, Al, Zn or Mn, or a combination thereof, and a metallic coating layer disposed on the particle core and comprising a metallic coating material, wherein the powders are configured for solid-state sintering to one another at a predetermined sintering temperature; and

forming a base article from the base material particles comprising the plurality of removable material particles, the forming comprising mixing the base material particles and the removable material particles to form a particle mixture and compacting or heating, or a combination thereof, the particle mixture to provide the base article.

2. The method of claim 1 , wherein heating and compacting of the removable metallic particles forms a cellular nanomatrix of the metallic coating material having a plurality of dispersed particles comprising the particle core material, dispersed in the cellular nanomatrix; and a bond layer extending throughout the cellular nanomatrix between the dispersed particles.

3. The method of claim 2 , wherein the metallic coating material comprises Al, Zn, Mn, Mg, Mo, W, Cu, Fe, Si, Ca, Co, Ta, Re or Ni, or an oxide, carbide or nitride thereof, or a combination of any of the aforementioned materials, and wherein the metallic coating material has a chemical composition and the particle core material has a chemical composition that is different than the chemical composition of the metallic coating material.

4. The method of claim 1 , wherein forming the particle mixture comprises heating the particle mixture, and wherein the particle core has a melting temperature (T P ), the metallic coating material has a melting temperature (T Cc ), and the predetermined sintering temperature (T S ) is less than T P and T C .

5. The method of claim 1 , wherein forming the particle mixture comprises compacting the particle mixture.

6. The method of claim 5 , further comprising heating the particle mixture during compacting; or heating after compacting to form the base article; or a combination thereof.

7. The method of claim 5 , wherein compacting the particle mixture comprises extrusion, injection molding, compression molding, transfer molding, structural foam molding, blow molding, rotational molding, hot isostatic pressing or dynamic forging.

8. The method of claim 1 , wherein the base material comprises a polymer, metal, ceramic or inorganic compound, or a combination thereof.

9. The method of claim 1 , wherein the removable material comprises a polymer, metal, ceramic or inorganic compound, or a combination thereof.

10. The method of claim 1 , wherein the base article comprises a downhole tool or component.

11. The method of claim 1 , further comprising removing the removable material from the base article to provide a modified article.

12. The method of claim 11 , wherein the base article comprises a downhole tool or component and the modified article comprises a downhole tool or component that is different than the downhole tool or component provided by the base article.

13. The method of claim 11 , wherein the modified article has at least one of a surface porosity, internal porosity or surface texture, or a combination thereof, formed by removal of the removable material.

14. The method of claim 11 , wherein removing the removable material is performed by exposing the base article to a wellbore fluid.

15. The method of claim 11 , wherein the wellbore fluid is selected from a group consisting of water, an aqueous chloride solution, an inorganic acid, an organic acid, and combinations thereof.