최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0826710 (2015-08-14) |
등록번호 | US-9926763 (2018-03-27) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 488 |
A method of removing a corrodible downhole article having a surface coating includes eroding the surface coating by physical abrasion, chemical etching, or a combination of physical abrasion and chemical etching, the surface coating comprising a metallic layer of a metal resistant to corrosion by a
A method of removing a corrodible downhole article having a surface coating includes eroding the surface coating by physical abrasion, chemical etching, or a combination of physical abrasion and chemical etching, the surface coating comprising a metallic layer of a metal resistant to corrosion by a corrosive material.
1. An article for forming a downhole seal, comprising a magnesium alloy core, and a metallic layer having a thickness of about 10 to about 1,000 micrometers and covering the magnesium alloy core, the metallic layer comprising tungsten, cobalt, copper, iron, nickel, aluminum, nickel alloy, aluminum a
1. An article for forming a downhole seal, comprising a magnesium alloy core, and a metallic layer having a thickness of about 10 to about 1,000 micrometers and covering the magnesium alloy core, the metallic layer comprising tungsten, cobalt, copper, iron, nickel, aluminum, nickel alloy, aluminum alloy, or a combination comprising at least one of nickel, aluminum, nickel alloy, or aluminum alloy, and further the metallic layer being resistant to corrosion by a corrosive material, wherein the article is a ball seat; and a surface of the ball seat includes a concave region having a radius designed to accommodate a ball or plug. 2. The article of claim 1, wherein the magnesium alloy core comprises an alloy of magnesium with one or more of the following elements: aluminum; cadmium; calcium; cobalt; copper; iron; manganese; nickel; silicon; silver; strontium; thorium; tungsten; zinc; or zirconium. 3. The article of claim wherein the magnesium alloy article core comprises greater than zero but less than or equal to about 1 wt% of nickel. 4. The article of claim 1, wherein the magnesium alloy article core comprises about 0.25 to about 1 wt% of nickel. 5. The article of claim 1, wherein the metallic layer comprises one or more of the following: nickel; aluminum; nickel alloy; or aluminum alloy. 6. The article of claim 1, wherein the metallic layer comprises a single layer. 7. The article of claim 1, wherein the metallic layer comprises more than one layers. 8. The article of claim 5, wherein each of the metallic layer comprises different metals. 9. The article of claim 5, wherein each of the metallic layer comprises same metals. 10. The article of claim 1, wherein the metallic layer has a thickness of about 100 to about 500 micrometers. 11. A method of making an article for forming a downhole seal, comprising plating or depositing, in the absence of water, a metallic layer having a thickness of about 10 to about 1,000 micrometers and resistant to corrosion by a corrosive material, ona surface of a magnesium alloy core,wherein the metallic layer covers magnesium ocore and comprises tungsten, cobalt, copper, ion, nickel, aluminum, nickel alloy, aluminum alloy, or a combination comprising at least one of nickel, aluminum, nickel alloy, or aluminum alloy, the article is a ball seat, and a surface of the ball seat includes a concave region having a radius designed to accomodate a ball or plug. 12. The method of claim 11, wherein the metallic layer is formed by an electroless plating process, or by an electrodeposition process in the presence of an anhydrous ionic solvent. 13. The method of claim 11, further comprising forming the article core by forging, sintering, machining, or a combination comprising at least one of the foregoing. 14. The method of claim 13, comprising: coating a powder to provide a coated powder;molding or compressing the coated powder to provide a molded or compressed article having a first shape; andforming the article core by one or more of the following: forging, sintering, or machining the molded or compressed article having the first shape. 15. The method of claim 14, wherein the powder has a particle size of from about 50 to about 150 micrometers. 16. The method of claim 14, wherein the magnesium alloy article core comprises a powder having a particle size of from about 60 to about 140 micrometers. 17. The method of claim 11, wherein the metallic layer comprises one or more of the following: nickel; aluminum; nickel alloy; or aluminum alloy. 18. An article for forming a downhole seal, the article comprising: a magnesium alloy article core, anda metallic layer having a thickness of about 10 to about 1,000 micrometers and covering the magnesium alloy core, the metallic layer comprising tungsten, cobalt, copper, iron, nickel, aluminum, nickel alloy, aluminum alloy, or a combination comprising at least one of nickel, aluminum, nickel alloy, or aluminum alloy, and further the metallic layer being resistant to corrosion by a corrosive material,wherein the article has a cylindrical shape that tapers in a truncated, conical cross- sectional shape. 19. The article of claim 18, wherein the magnesium alloy article core comprises particles of magnesium alloyed with one or more of the following: Ni; W; Co; Cu; or Fe. 20. The article of claim 18, wherein the magnesium alloy article core comprises magnesium alloyed with less than or equal to about 0.5 wt% of nickel.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.