发明名称 |
FRACTURING SYSTEM AND METHOD |
摘要 |
A telescoping unit for a downhole tool including an innermost portion of the telescoping unit; a block defining a restriction disposed within the innermost portion of the telescoping unit; and an erodable coating on the block to segregate the block from downhole fluids and method.
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申请公布号 |
US2011005759(A1) |
申请公布日期 |
2011.01.13 |
申请号 |
US20090501203 |
申请日期 |
2009.07.10 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
XU YANG |
分类号 |
E21B43/26;E21B34/06;E21B43/267 |
主分类号 |
E21B43/26 |
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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