发明名称 |
Nonconducting thread lubricant |
摘要 |
A nonconducting pipe thread lubricating composition for use in a drill string capable of transmitting electrical signals from a downhole location to the surface of the earth. The composition includes hard and soft moderately deforming materials such as polyphenylene sulfide and talc, and a lubricating solid such as polytetrafluoroethylene dispersed in a viscous lubricating base preferably a lithium based grease.
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申请公布号 |
US4613443(A) |
申请公布日期 |
1986.09.23 |
申请号 |
US19840625381 |
申请日期 |
1984.06.28 |
申请人 |
NL INDUSTRIES, INC. |
发明人 |
RAO, M. VIKRAM;KALSI, MANMOHAN S.;ALVAREZ, PATRICIO D. |
分类号 |
C10M171/00;(IPC1-7):C10M131/04;C10M141/00 |
主分类号 |
C10M171/00 |
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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