发明名称 |
CENTRALIZER FOR TUBULAR ELEMENTS |
摘要 |
A centralizer for tubular elements is provided which includes an inner part formed by a first material having high mechanical performance and chemical stability and an outer part arranged on said inner part, formed by a second material. The second material may be an autolubricating material. The second material may further possess a low coefficient of friction. The second material may additionally possess lower mechanical performance and chemical stability than the first material. A method of manufacturing the centralizer is also provided, including steps of injecting the first material on a tubular element to form the inner part on the tubular element and injecting the second material to form the outer part on the formed inner part.
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申请公布号 |
US2009260802(A1) |
申请公布日期 |
2009.10.22 |
申请号 |
US20090425143 |
申请日期 |
2009.04.16 |
申请人 |
ERNST HUGO;DAPINO GUILLERMO;PEREYRA MATIAS |
发明人 |
ERNST HUGO;DAPINO GUILLERMO;PEREYRA MATIAS |
分类号 |
E21B17/10;B28B21/72 |
主分类号 |
E21B17/10 |
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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