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经营范围
发明名称
Packer
摘要
A packer includes a sealing element, a gage and a plurality of foldback rings. The rings are located between the gage and the sealing element.
申请公布号
US7708080(B2)
申请公布日期
2010.05.04
申请号
US20060307916
申请日期
2006.02.28
申请人
SCHLUMBERGER TECHNOLOGY CORPORATION
发明人
CONAWAY SETH;GROSSER KAREN;HENDRICKSON JAMES D.
分类号
E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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