Phoenix Test | Questions with 100% Correct
Answers | Verified | Latest Update 2026
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Terms in this set (190)
Flow Loop Mud tanks > Mud pumps > shock hose > mud line >
stand pipe > swivel > drill string > bit > annulus >
flow line > shaker > mud tanks
annular preventer Upper most portion of the BOP stack
It will close around and seal anything in the well
bore, regardless of shape or size
Blind Rams Located below the annular preventer
Only activated when the drill string is out of the
hole
When activated, two steel plates with a rubber seal
come together to seal off the well bore
Pipe Rams Located below the blind rams
Functions the same as the blind rams but has a cut
out in the steel plate to accommodate the size of
drill pipe being used
Sheer Rams Activated in emergency situations when the well
bore needs to be sealed off immediately
The shear rams cut the drill pipe off and seal the
well bore
,Accumulator Stores hydraulic fluid under pressure to open and
close the annular preventer, blind rams and pipe
rams or the HCR valve
Must be stored a minimum of 23 meters away from
the well bore
Hydraulically Controlled Remote Is the flow valve that diverts flow or gas to the
Valve (HCR) choke manifold
Choke Manifold Controls bottom hole pressure when a kick or blow
out occurs
It will divert flow back to the mud tanks or gas to
the flare pit
Silicon Controlled Rectifier (SCR) The SCR converts AC (alternating current) to DC
(direct current)
The DC power is sent to the traction motors via
cables to supply power to the drawworks, mud
pumps, or rotary table
Compound A series of chains and sprockets that distribute
power to the drawworks and/or the mud pumps
While drilling, engine#1 power will be sent to the
drawworks for hoisting and rotating, while
engine#2 power is sent to the mud pumps
When tripping in and out of the hole, both engines
will be compounded to provide the extra power to
the drawworks for hoisting the drill string in and
out of the hole.
Differential Pressure Force of fluid per unit area as compared inside and
outside the drill string after the obstruction fluid
experiences when flowing through the bit nozzles;
changes when bit is on and off bottom
, EDR Electronic Drilling Recorder
An EDR screen is found on the rig floor, as well as
in each of the shacks on the rig location, and
sometimes remotely in the client's office as well.
ROP Rate of drilling
Measured Depth Length of the wellbore as though measured by a
measuring tape. This length is tallied by the total
length of pipe in the hole when the bit is on
bottom.
True Vertical Depth (TVD) The depth of the wellbore at a given point, as
measured by vertical displacement between the
wellhead, and the wellbore at a given point.
Vertical Section Direction (VSD): The azimuth of the horizontal line drawn from a set
point of the wellbore (Typically well center) to a
set target (Usually the final target at the end of the
well).
Vertical Section (VS): The horizontal distance drilled in the vertical
section direction.
Dogleg Severity (DLS): Measured in degrees per hundred feet (or 30m),
dogleg severity is a way of measuring kinks in the
wellbore. Consistent doglegs are needed when
drilling the curve in order to build angle. However,
when attempting to drill a straight lateral, it is not
good to have a sudden severe dogleg. This creates
problems transferring weight to the bit for the
drilling process, and also with running casing to the
bottom of the wellbore.
Answers | Verified | Latest Update 2026
Save
Terms in this set (190)
Flow Loop Mud tanks > Mud pumps > shock hose > mud line >
stand pipe > swivel > drill string > bit > annulus >
flow line > shaker > mud tanks
annular preventer Upper most portion of the BOP stack
It will close around and seal anything in the well
bore, regardless of shape or size
Blind Rams Located below the annular preventer
Only activated when the drill string is out of the
hole
When activated, two steel plates with a rubber seal
come together to seal off the well bore
Pipe Rams Located below the blind rams
Functions the same as the blind rams but has a cut
out in the steel plate to accommodate the size of
drill pipe being used
Sheer Rams Activated in emergency situations when the well
bore needs to be sealed off immediately
The shear rams cut the drill pipe off and seal the
well bore
,Accumulator Stores hydraulic fluid under pressure to open and
close the annular preventer, blind rams and pipe
rams or the HCR valve
Must be stored a minimum of 23 meters away from
the well bore
Hydraulically Controlled Remote Is the flow valve that diverts flow or gas to the
Valve (HCR) choke manifold
Choke Manifold Controls bottom hole pressure when a kick or blow
out occurs
It will divert flow back to the mud tanks or gas to
the flare pit
Silicon Controlled Rectifier (SCR) The SCR converts AC (alternating current) to DC
(direct current)
The DC power is sent to the traction motors via
cables to supply power to the drawworks, mud
pumps, or rotary table
Compound A series of chains and sprockets that distribute
power to the drawworks and/or the mud pumps
While drilling, engine#1 power will be sent to the
drawworks for hoisting and rotating, while
engine#2 power is sent to the mud pumps
When tripping in and out of the hole, both engines
will be compounded to provide the extra power to
the drawworks for hoisting the drill string in and
out of the hole.
Differential Pressure Force of fluid per unit area as compared inside and
outside the drill string after the obstruction fluid
experiences when flowing through the bit nozzles;
changes when bit is on and off bottom
, EDR Electronic Drilling Recorder
An EDR screen is found on the rig floor, as well as
in each of the shacks on the rig location, and
sometimes remotely in the client's office as well.
ROP Rate of drilling
Measured Depth Length of the wellbore as though measured by a
measuring tape. This length is tallied by the total
length of pipe in the hole when the bit is on
bottom.
True Vertical Depth (TVD) The depth of the wellbore at a given point, as
measured by vertical displacement between the
wellhead, and the wellbore at a given point.
Vertical Section Direction (VSD): The azimuth of the horizontal line drawn from a set
point of the wellbore (Typically well center) to a
set target (Usually the final target at the end of the
well).
Vertical Section (VS): The horizontal distance drilled in the vertical
section direction.
Dogleg Severity (DLS): Measured in degrees per hundred feet (or 30m),
dogleg severity is a way of measuring kinks in the
wellbore. Consistent doglegs are needed when
drilling the curve in order to build angle. However,
when attempting to drill a straight lateral, it is not
good to have a sudden severe dogleg. This creates
problems transferring weight to the bit for the
drilling process, and also with running casing to the
bottom of the wellbore.
