SPIN WRENCH ASSEMBLY

摘要

A device is taught for making up or breaking out drill pipe sections. The device comprises one or more roller assemblies. Each roller assembly comprises a support movably attached to the roller assembly by an attachment means, one or more rollers supported on the support and one or more roller motors. The support can be raised and lowered by tightening or loosening the attachment means to allow access to the one or more rollers supported on the support. A mechanical roughneck system is further taught for making up or breaking out drill pipe section comprising the present device. A method is also provided for changing rollers in a spin wrench assembly.