发明名称 Wellbore top drive systems
摘要 An containerized top drive system including a container, top drive apparatus removably disposed within the container, an extension system for moving the top drive apparatus generally horizontally within a derrick, the top drive apparatus secured to the extension system, the extension system removably disposed within the container with the top drive apparatus, and the track including at least one track part which is a skid track part, the skid track part including a skid portion and a track portion, the top drive apparatus and the extension system located on the at least one skid track part within the container and the top drive apparatus supported by and movable with the at least one skid track part.
申请公布号 US7222683(B2) 申请公布日期 2007.05.29
申请号 US20040870700 申请日期 2004.06.16
申请人 VARCO I/P, INC. 发明人 FOLK ROBERT ALDEN;FOLK STEVEN LORNE
分类号 E21B19/08;E21B3/02;E21B19/00;E21B19/16;E21B19/22;E21B21/00 主分类号 E21B19/08
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