发明公开
- 专利标题： FIBER REINFORCED PRESSURE COMPENSATOR DIAPHRAGM
- 专利标题（中）： REED纤维增强压力补偿
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申请号： EP09735748.7申请日： 2009-04-21
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公开(公告)号： EP2300684A1公开(公告)日： 2011-03-30
- 发明人: DICK, Aaron , KOLTERMANN, Terry, J. , LIN, Chih , BUTUC, Stefan, M. , FIELD-EATON, Cameron
- 申请人： Baker Hughes Incorporated
- 申请人地址： P. O. Box 4740 Houston, TX 77027 US
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： P. O. Box 4740 Houston, TX 77027 US
- 代理机构： Hano, Christian
- 优先权： US46510P 20080421
- 国际公布： WO2009131970 20091029
- 主分类号： E21B47/12
- IPC分类号： E21B47/12 ; E21B47/06 ; G01V3/38
摘要：
A drill bit for drilling a wellbore, the drill bit having a body and at least one bearing. A rotar cone is rotatably attached to the bit body at the bearing. A lubricant reservoir is located in an inner portion of the bit body and is in fluid communication with the bearing. A communication port leads from the inner portion of the bit body to the exterior of the bit body. A fiber reinforced elastomeric pressure compensator diaphragm separates lubricant in the lubricant reservoir from the communication port.
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