Portable hydraulic rig for performing workover, drilling and other operations on a well
Patent
·
OSTI ID:6218537
A new and improved portable hydraulic rig is described for performing workover, drilling or other operations on a well, usually a petroleum well. The rig has a telescoping mast for telescoping to a reduced length for transportation and is cantilevered in use so that the travelling block moves vertically at one side of the on. The cable for the travelling block is reeved over the various sheaves, including a sheaves on a hydraulic power assembly, with the dead end of the line being fastened at or in proximity to the rig floor for balanced loading on the legs of the mast and to enable slack in the cables to be taken up when telescoping the mast.
- Assignee:
- IFI; EDB-81-114376
- Patent Number(s):
- US 4269395
- OSTI ID:
- 6218537
- Country of Publication:
- United States
- Language:
- English
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