发明名称 ROD PULLER
摘要 A rod pulling apparatus uses a clamp secured to a wellhead and a clamp secur ed to a travelling block of a conventional service rod to walk coiled rod into and out of a well. The clamps may move into gripping position by rotation of gripping blocks. Coiled rod is guided by a rod guide through a split in the travelling bloc k.
申请公布号 CA2299765(A1) 申请公布日期 2001.08.29
申请号 CA20002299765 申请日期 2000.02.29
申请人 C-TECH ENERGY SERVICES INC. 发明人 WIDNEY, SCOTT W.;DEDELS, RICHARD L.
分类号 E21B19/08;E21B19/22;(IPC1-7):E21B19/08 主分类号 E21B19/08
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