| 摘要 |
Specialized tools and methods are presented for use on blowout preventers on oil and gas rigs. The specialized tools releseably attach to a threaded, blowout-preventer head to remove the same. In one instance, the tool has a longitudinal shaft, a lifting eye member at one end and a head-mounting member at the other. The head-mounting member attaches to the threaded, blowout-preventer head. In some instances, one or more torque arms may be included to add additional torque. Other embodiments and methods are also included.
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