发明名称 EXPANSION PIG.
摘要 <p>A tool for radially expanding casing having a tool body that includes a proximalend, a distal end, and an outer surface. The tool includes at least one hydraulicchannel disposed axially. The at least one hydraulic channel transmits hydraulicpressure from behind the expansion tool forward in the direction of travel ofthe expansion tool.</p>
申请公布号 MX2007004203(A) 申请公布日期 2007.06.11
申请号 MX20070004203 申请日期 2005.10.04
申请人 HYDRIL COMPANY. 发明人 SIVLEY, ROBERT S., IV
分类号 E21B43/10 主分类号 E21B43/10
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