| rig |
the derrick or mast, drawworks,
and attendant surface equipment of a drilling or workover unit. |
| rig manager |
an employee of a drilling
contractor who is in charge of the entire drilling crew and the drilling rig. Also
called a toolpusher, drilling foreman, rig supervisor, or rig superintendent. |
| rig
superintendent |
also called a toolpusher.
See toolpusher. |
| rig up |
to prepare the drilling rig for
making hole; to install tools and machinery before drilling is started. |
| RIH |
abbreviation:
run-in-hole. |
| ring-joint
flange |
a special type of flanged
connection in which a metal ring (resting in a groove in he flange) serves as a pressure
seal between the two flanges. |
| riser |
a pipe through which liquid
travels upward. |
| riser
margin |
the slight increase in mud weight
used to offset friction losses that occur as the mud is circulated through the riser. |
| riser pipe |
the pipe and special fittings used
on floating offshore drilling rigs to establish a seal between the top of the wellbore,
which is on the ocean floor, and the drilling equipment, located above the surface of the
water. A riser pipe serves as a guide for the drill stem from the drilling vessel to the
wellhead and as a conductor of drilling fluid from the well to the vessel. The riser
consists of several sections of pipe and includes special devices to compensate for any
movement of the drilling rig caused by waves. It is also called a marine riser. |
| rock a well |
to bleed pressure from casing of a
dead well, then from tubing, then from casing, and so on so that the well will start to
flow. |
| Rockwell
hardness test |
an arbitrarily defined measure of
resistance of a material to indentation under static or dynamic load |
| rod
blowout preventer |
a ram device used to close the
annular space around the polished rod or sucker rod in a pumping well. |
| rod
elevators |
a device used to pull or to run
sucker rods. |
| rod hanger |
a device used to hang sucker rods
on the mast or in the derrick |
| rod hook |
a small swivel hook having a
fast-operating automatic latch to close the hook opening when weight is suspended from the
hook. |
| rod pump |
see sucker rod pump |
| rod string |
a sucker rod string, that is, the
entire length of sucker rods, which usually consist of several single rods screwed
together. The rod string serves as a mechanical link from the beam pumping unit on
the surface to the sucker rod pump near the bottom of the well. |
| rod
stripper |
a device closed around the rods
when the well may flow through the tubing while the rods are being pulled. It is a
form of blowout preventer. |
| rod sub |
a short length of sucker rod that
is attached to the top of the sucker rod pump |
| rod-transfer
elevator |
a special type of elevator
designed to accommodate the end of a sucker rod. it allows the derrickman to
transfer the rod to the racking platform from the regular elevator being used to lift the
rod out of the well. |
| rod-transfer
equipment |
all the devices used to accomplish
the moving of sucker rods form the elevators to the racking platform. |
| roller
cone bit |
a drilling bit made of two, three,
or four cones, or cutters, that are mounted on extremely rugged bearings. the
surface of each cone is made of rows of steel teeth or rolls of tungsten carbide inserts.
Also called rock bits. |
| rope socket |
a device to connect the wireline
to the tool string. |
| rotary |
the machine used to impart
rotational power to the drill stem while permitting vertical movement of the pipe for
rotary drilling. Modern rotary machines have a special component, the rotary or
master bushing, to turn the kelly bushing, which permits vertical movement of the kelly
while the stem is turning. |
| rotary
drilling |
a drilling method in which a hole
is drilled by a rotating bit to which a downward force is applied. The bit is
fastened to and rotated by the drill stem, which also provides a passageway through which
the drilling fluid is circulated. Additional joints of drill pipe are added as
drilling progresses. |
| rotary
helper |
a worker on a drilling or workover
rig, subordinate to the driller, whose primary work station is on the rig floor. On rotary
drilling rigs, there are at least two and usually three or more rotary helpers on each
crew. Sometimes called floor man, roughneck, or rig crewman. |
| rotary hose |
a reinforced flexible tub on a
rotary drilling rig that conducts the drilling fluid from the standpipe to the swivel and
kelly. Also called the mud hose
or the kelly hose |
| rotary shoe |
a length of pipe whose bottom edge
is serrated or dressed with a hard cutting material and that is run into the wellbore
around the outside of stuck casing, pipe, or tubing to mill away the obstruction. |
| 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. |
| rotating
components |
those parts of the drilling or
workover rig that are designed to turn or rotate the drill stem and bit - swivel, kelly,
kelly busing, master bushing, and rotary table. |
| rotating
head |
a sealing device used to close off
the annular space around the kelly in drilling with pressure at the surface, usually
installed above the main blowout preventers. A rotating head makes it possible to
drill ahead even when there is pressure in the annulus that the weight of the drilling
fluid is not overcoming; the head prevents the well from blowing out. It is used mainly in
the drilling of formations that have low permeability. The rate of penetration
through such formations is usually rapid. |
| roughneck |
see rotary
helper |
| round trip |
the action of pull out and
subsequently running back into the hole a string of drill pipe or tubing. Making a round
trip is also called tripping. |
| roustabout |
a worker on an offshore rig who
handles the equipment and supplies that are sent to the rig form the shore base. The head
roustabout is very often the crane operator. a worker who assists the foreman in the
general work around a producing oilwell, usually on the property of the oil company. A
helper on a well servicing unit. |
| royalty |
the portion of oil, gas, and
minerals retained by the lessor on execution of a leases or their cash value paid by the
lessee to the lessor or to one who has acquired possession of the royalty rights, based on
a percentage of the gross production from the property free and clear of all costs except
taxes. |
| RTTS |
a trademark for a retrievable
squeeze tool. |
| running
tools |
specialized tools used to run
equipment in a well, such as a wireline running tool for installing retrievable gas lift
valves. Various tubing-type running tools are also used. |
