Manufacturer name model number serialnumber hook load capacity with the number of lines wind load capacity both with and withoutpipes in the mast and if applicable the recommended guying pattern. Rig snubbed pipe in via series of chains and pulleys 1st generation HWO unit introduced in the 1960s.
Rig Design Dolfines Energy
Mast has a permanent nameplate attached stating.
. Mast ladder extends down to rig floor. No requirement for rig Typically run pipe in singles Rig assist RA units returned in late 1990s to support UBD activity Hydraulic jacks. Base of ladder clear of obstructions.
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Structure Diagram Of The Rotary Drilling Rig Download Scientific Diagram
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