الجمعة، 17 نوفمبر 2017

Rig components part (2)

Engine Generator Sets

A diesel, Liquefied Petroleum Gas (LPG), natural gas, or
gasoline engine, along with a mechanical transmission and
generator for producing power for the drilling rig. Newer
rigs use electric generators to power electric motors on
the other parts of the rig.
 Fuel Tanks

Fuel storage tanks for the power generating system.

Hoisting Line

A wire rope used in hoisting operations. Must conform to
the API standards for its intended uses.


A large, hook-shaped device from which the elevator bails
or the swivel is suspended. It is designed to carry
maximum loads ranging from 100 to 650 tons and turns
on bearings in its supporting housing.


The heavy square or hexagonal steel member suspended
from the swivel through the rotary table. It is connected to
the topmost joint of drill pipe to turn the drill stem as the
rotary table turns.

Kelly Bushing

A device fitted to the rotary table through which the kelly
passes. It is the means by which the torque of the rotary
table is transmitted to the kelly and to the drill stem. Als
called the drive bushing.

Kelly Spinner

A device for spinning the drill pipe. Replaces the spinning


A portable derrick capable of being erected as a unit, as
distinguished from a standard derrick, which cannot be
raised to a working position as a unit.


The derrickman's working platform. Double board, tribble
board, fourable board; a monkey board located at a height
in the derrick or mast equal to two, three, or four lengths
of pipe respectively.


Shallow bores under the rig floor, usually lined with pipe,
in which joints of drill pipe are temporarily suspended for
later connection to the drill string.
 Mud-Gas Separator

A device that removes gas from the mud coming out of a
well when a kick is being circulated out.

Mud Pits

A series of open tanks, usually made of steel plates,
through which the drilling mud is cycled to allow sand and
sediments to settle out. Additives are mixed with the mud
in the pit, and the fluid is temporarily stored there before
being pumped back into the well. Mud pit compartments
are also called shaker pits, settling pits, and suction pits,
depending on their main purpose.

Mud Pump

A large reciprocating pump used to circulate the mud
(drilling fluid) on a drilling rig.

Mud Return Line

A trough or pipe, placed between the surface connections
at the well bore and the shale shaker. Drilling mud flows
through it upon its return to the surface from the hole

Pipe Racks

A horizontal support for tubular goods.

Pipe Ramp

An angled ramp for dragging drill pipe up to the drilling
platform or bringing pipe down off the drill platform.
A blowout preventer that uses rams to seal off pressure on
a hole that is with or without pipe. It is also called a ram
preventer. Ram-type preventers have interchangeable ram
blocks to accommodate different O.D. drill pipe, casing, or


A hole in the rig floor 30 to 35 feet deep, lined with casing
that projects above the floor. The kelly is placed in the
rathole when hoisting operations are in progress.

Reserve Pits

A mud pit in which a supply of drilling fluid has been
stored. Also, a waste pit, usually an excavated, earthen-
walled pit. It may be lined with plastic to prevent soil

Rotary Hose

The hose on a rotary drilling rig that conducts the drilling
fluid from the mud pump and standpipe to the swivel and
kelly; also called the mud hose or the kelly hose.

Ram Blowout Preventer
Rotary Table

The principal component of a rotary, or rotary machine,
used to turn the drill stem and support the drilling
assembly. It has a beveled gear arrangement to create the
rotational motion and an opening into which bushings are
fitted to drive and support the drilling assembly. 

Note the pipe spinner (in red) on the side of the swivel.

Shale Shaker

A series of trays with sieves or screens that vibrate to
remove cuttings from circulating fluid in rotary drilling
operations. The size of the openings in the sieve is
selected to match the size of the solids in the drilling fluid
and the anticipated size of cuttings. Also called a shaker.

Rig components part (2) Reviewed by الحريف on نوفمبر 17, 2017 Rating: 5 Engine Generator Sets A diesel, Liquefied Petroleum Gas (LPG), natural gas, or gasoline engine, along with a mechanical transmission a...

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