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Oil Rig Components
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Shale Shaker
A vibrating screen used to remove cuttings from the drilling fluid, which helps to clean and recycle the fluid.
Mousehole
An opening in the rig floor near the rotary table, used to temporarily hold a drill string connection while another connection is being added. It assists in streamlining the process of adding drill pipe lengths.
Blowout Preventer (BOP)
A safety device designed to prevent uncontrolled release of crude oil or natural gas from the well, by sealing the space between the drill pipe and wellbore or by severing the drilling pipe.
Rotary Hose
Also known as the mud hose or kelly hose, this is a flexible rubber hose that connects the standpipe to the kelly and allows for the circulation of drilling fluid under high pressure.
Degasser
An equipment used to remove unwanted gases from the drilling fluid, ensuring that gas bubbles do not compromise the fluid's hydraulic properties or cause safety issues.
Swivel
A mechanical device that suspends the weight of the drill string, allows rotation of the string while the drill fluid is being pumped through it, and ensures that the rotation does not interfere with the circulation of the drilling fluid.
Drill Bit
The tool attached to the bottom of the drill string that breaks and drills through the rock. Its performance directly affects the rate of penetration and overall efficiency of the drilling process.
Casing
Large-diameter pipe set into the drilled borehole designed to stabilize the wellbore and prevent the well from caving in. It also provides a conduit for the safe extraction of oil or gas.
Cathead
A rotating device on a drilling rig used to facilitate the making up and breaking out of pipe connections by providing rotational force.
Mud Pumps
Reciprocating pumps used to circulate drilling fluid through the system at high pressures. These fluids cool and lubricate the drill bit, as well as carry the cuttings to the surface.
Traveling Block
A freely moving section of the block and tackle system used in drilling rigs that holds the hook and swivel, enabling the drill string to be lowered or raised from the borehole.
Top Drive
An alternative to the rotary table, this is a motor that is used to spin the drill string and thus the drill bit, allowing for a more efficient drilling process, especially in horizontal drilling operations.
Drill Floor
The area on the rig where the drilling operations take place. It includes the rotary table, kelly, and driller's panel and is the main workspace for the drilling crew.
Rathole
A hole in the rig floor that provides storage for the kelly when it's not in use. It also can be used to store tools and drill pipes temporarily and keeps them accessible but out of the way.
Derrick
A tower-like structure that supports the drilling equipment, including the drill pipes and cables. It is essential for lowering and raising the drill string into the borehole.
Drill Collars
Heavy, thick-walled tube used in a drill string that provides weight on the drill bit for drilling and keeps the drill string in tension, ensuring it does not buckle.
Kelly Drive
A square or hexagonal-shaped piece of pipe that transmits rotational motion to the turntable and drill string. It is integral in making the initial phase of the drilling process possible by transferring motion from the rotary table.
Casing Head
A heavy, flanged steel fitting connected to the top of the well casing, which includes outlets for the annulus between casing strings for fluid returns and allows suspension of the casing string.
Standpipe
A vertical pipe on a drilling rig that provides the high-pressure pathway for drilling fluids being pumped to the drill floor and, ultimately, down the drill string.
Choke Manifold
A system of valves and pipes that allows for controlled circulation of drilling fluid under high pressure in the case of a well control event, such as a kick.
Pipe Racks
Structures used to store multiple sections of drill pipe, drill collars, and other drilling equipment near the rig floor.
Mud Gas Separator
A device that removes entrained gases from the drilling fluid, which effectively prevents potential blowouts due to gas cut mud.
Hook
A large, hook-shaped device attached to the bottom of the traveling block that is used to handle heavy loads, such as lifting and holding the drill string and other tools.
Drawworks
The primary hoisting machinery that reels out and reels in the drilling line, thus raising or lowering the drill string and the bit. It's crucial for controlling the penetration rate of the bit.
Rotary Table
A mechanical device on the rig floor that provides rotational power to the drill string. It is vital for the drilling operation as it enables the bit to drill into the earth's crust.
Mud Mixer
An equipment to combine water, oil, or synthetic base with drilling mud additives to create drilling fluid, which is then pumped downhole.
Drill Pipe
Heavy, seamless steel pipes used to rotate the drill bit and circulate the drilling fluid. The length of drill pipe determines the depth that the rig can drill.
Iron Roughneck
An automated device used to connect and disconnect sections of drill pipe, reducing the physical labor associated with these tasks and reducing the risk of injuries during drilling operations.
Mud Tank
An open-top container, typically made of steel, used to store and mix the drilling fluid or mud before it is pumped down the borehole.
Crown Block
An assembly of sheaves mounted on beams at the top of the derrick, which is used to thread the drilling line and plays a key role in the mechanism of the traveling block and hoisting system.
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