Downhole impact wrench
Patent
·
OSTI ID:6249770
This invention concerns an impact wrench for breaking a threaded connection between a first section of pipe and a second section of pipe. It includes an arcuate gripping member having an exterior gripping means for gripping the inside of the first section of pipe and an impact tool for directing multiple sudden distinct forces of torque through said gripping means to the first section. It also includes a second arcuate gripping member for gripping the interior of the second section of pipe which is connected to the first and means for the second arcuate gripping member to receive the reaction torque from the impact tool.
- Assignee:
- Standard Oil Company
- Patent Number(s):
- US 4474244
- OSTI ID:
- 6249770
- Country of Publication:
- United States
- Language:
- English
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