发明名称 |
WEAR RESISTANT COATINGS FOR RADIAL BEARINGS AND DOWNHOLE TOOLS |
摘要 |
Abrasion resistant coatings useful for improving abrasive wear and/or corrosion resistance in radial bearings and downhole tools exposed to drilling forces as well as abrasive and/or corrosive drilling fluids. An abrasion resistant coating is disposed on at least one surface of a component body to increase the resistance of the component to abrasive wear and corrosion. The abrasion resistant coating includes a plurality of spherical tungsten cobalt carbide particles and a plurality of tungsten carbide particles. At least 65% by volume of the spherical tungsten cobalt carbide particles have a diameter of less than about 25 microns. |
申请公布号 |
CA2846831(A1) |
申请公布日期 |
2014.09.15 |
申请号 |
CA20142846831 |
申请日期 |
2014.03.14 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
FERGUSON, ROBERT JAMES;CARIVEAU, PETER THOMAS |
分类号 |
E21B10/46;C23C24/08 |
主分类号 |
E21B10/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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