发明名称 APPARATUS AND METHOD FOR PROTECTING TUBULARS DURING INSTALLATION
摘要 Method and apparatus are provided for preventing damage to the surface of metal tubulars or work pieces when force to turn or support the tubulars is applied by the serrated surface of a die or insert. A woven fabric made from a polymer and having a selected thickness and structure is maintained between the die and the surface to be protected.
申请公布号 US2013232750(A1) 申请公布日期 2013.09.12
申请号 US201313768768 申请日期 2013.02.15
申请人 EXPRESS ENERGY SERVICES OPERATING, LP 发明人 PULLINS RUSSELL N.
分类号 E21B19/10;E21B19/16 主分类号 E21B19/10
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