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US Patent 9212531 Method and apparatus for performing cementing operations

Patent 9212531 was granted and assigned to Blackhawk Specialty Tools on December, 2015 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors

Is a

Patent

Patent attributes

Current Assignee

Blackhawk Specialty Tools

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

92125310

Date of Patent

December 15, 2015

Patent Application Number

126575580

Date Filed

January 22, 2010

Patent Primary Examiner

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Elizabeth Gitlin

Patent abstract

A remotely operated lifting top drive cement head has a high tensile strength and the ability to swivel or rotate. The cement head permits selective launching of darts, setting plugs, balls or other objects which can be held in place within the cement head without being damaged or washed away by slurry flow, but which can be beneficially launched as desired. The cement head can be remotely operated without requiring personnel to be lifted off the rig floor to actuate the tool or observe tool status.