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| Swivel |
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| Rotary
tool that is hung from the rotary hook and traveling block to suspend
the drill stem and to permit it to rotate freely. |
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| Crown Block |
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| Assembly
of sheaves, mounted on beams at the top of the derrick, over which the
drilling line is reeved (passed through a hole/opening). |
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| Swivel Hook |
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| Large,
hook-shaped device from which the swivel is suspended. | Mud Pump |
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| Large,
high-pressure reciprocating pump used to circulate the mud on a
drilling rig. |
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| Brake System |
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| Used for
controlling the lowering of the traveling block and its load of drill
pipe, casing, or tubing. |
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| Rotary Table |
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| The
principal component of a rotary, or rotary machine, used to turn the
drill stem and support the drilling assembly. |
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| Traveling Block |
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| Arrangement
of pulleys, or sheaves, through which drilling line is reeved and which
moves up and down in the derrick or mast. |
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| Mobile Rig |
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| Drilling
rigs that can be moved from one site to another. |
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| Other Components of the Oil Rig |
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| Part Name |
Function | |||
| Derrick |
Support structure that holds the drilling apparatus | |||
| Blowout Preventor |
High pressure valves that seal the high pressure drill lines and relieve pressure when necessary to prevent a blowout. |
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| Spare Pipe |
Replacement pipe (A pipe would usually connect the pump to the drilling apparatus | |||
| Turn-table |
Creates and drives the rotary motion using power from the electric motors | |||
| Drill Bit |
End of the drill that actually cuts up the rock | |||
| Casing |
Large-diameter concrete pipe that lines the drill hole, prevents the hole from collapsing, and allows drilling mud to circulate |
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| Drill String |
Consists of the drill pipe and the drill collars | |||
| Drill Collar |
Heavier pipe that fits around the drill pipe and places weight on the drill bit | |||
| Electric Generator |
Receives power by the diesel engines to provide electrical power to the oil rig | |||